Network Working Group E. Stephan/J. Jewitt
Internet Draft France Telecom R&D
Document: draft-ietf-ippm-reporting-mib-05.txt February, 2004
Category: Standards Track
IPPM reporting MIB
Status of this Memo
This document is an Internet-Draft and is in full conformance with
all provisions of Section 10 of RFC2026 [1].
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Abstract
This memo defines a portion of the Management Information Base (MIB)
designed for use with network management protocols in TCP/IP-based
internets.
In particular, this MIB specifies the objects used for managing the
results of the IPPM metrics measures, for pushing alarms, and for
reporting the measures results.
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Table of Contents
1. Introduction................................................2
2. The IPPM Framework..........................................3
3. The SNMP Management Framework...............................3
4. Overview....................................................5
4.1. Textual Conventions.........................................5
4.2 Structure of the MIB.........................................8
4.3 Row identification in an application namespace..............10
4.4 Relationship of IPPM REPORTING MIB tables...................11
5 Measurement architectures...................................12
5.1 Proxy architecture..........................................12
5.2 Reporting architecture......................................13
5.3 Gateway architecture........................................15
5.4 Security....................................................15
6 Reporting mode integration..................................16
6.1 Integration.................................................16
6.2 Setup of the network measure table..........................16
6.3 Setup of the aggregated measure table.......................16
6.4 Updating the history of the MIB.............................17
6.5 Default value...............................................17
7 Definition..................................................17
8 Security Considerations.....................................57
8.1 VACM Access control.........................................57
8.2 Privacy.....................................................59
8.3 Measurement aspects.........................................59
8.4 Management aspects..........................................60
9 Document management.........................................61
9.1 Open issues.................................................61
9.2 Changes done since release 04...............................61
9.3 Changes done since release 03...............................61
9.4 Changes done since release 02...............................62
10 References..................................................62
11 Acknowledgments.............................................64
12 Authors' Addresses..........................................64
1. Introduction
This memo defines a MIB for managing network measurements based upon
the IP performance metrics specified by the IPPM Working Group.
The definition of objects in the IPPM MIB are built on notions
introduced and discussed in the IPPM Framework document, RFC 2330
[ii].
This memo defines a Management Information Base (MIB), and as such it
is intended to be respectful of the "Boilerplate for IETF MIBs"
defined in http://www.ops.ietf.org/mib-boilerplate.html.
There are companion documents to the IPPM-REPORTING-MIB both in the
Transport Area (See section 2), and in the Operations and Management
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Area (See section 3). The reader should be familiar with these
documents.
2. The IPPM Framework
The IPPM Framework consists of 3 major components:
A general framework for defining performance metrics, as described in
the Framework for IP Performance Metrics, RFC 2330 [2];
A set of standardized metrics which conform to this framework: The
IPPM Metrics for Measuring Connectivity, RFC 2678 [iii]; The One-way
Delay Metric for IPPM, RFC 2679 [iv]; The One-way Packet Loss Metric
for IPPM, RFC 2680 [v]; The Round-trip Delay Metric for IPPM, RFC
2681 [vi];
Emerging metrics that are being specified in respect of this
framework.
3. The SNMP Management Framework
The SNMP Management Framework consists of five major components:
An overall architecture, described in RFC 2571 [2].
Mechanisms for describing and naming objects and events for the
purpose of management. The first version of this Structure of
Management Information (SMI) is called SMIv1 and described in STD 16,
RFC 1155 [3], STD 16, RFC 1212 [4] and RFC 1215 [5]. The second
version, called SMIv2, is described in STD 58, RFC 2578 [6], STD 58,
RFC 2579 [7] and STD 58, RFC 2580 [8].
Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in STD 15, RFC 1157 [9]. A second version of the SNMP
message protocol, which is not an Internet standards track protocol,
is called SNMPv2c and described in RFC 1901 [10] and RFC 1906 [11].
The third version of the message protocol is called SNMPv3 and
described in RFC 1906 [11], RFC 2572 [12] and RFC 2574 [13].
Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in STD 15, RFC 1157 [9]. A second set of protocol
operations and associated PDU formats is described in RFC 1905 [14].
A set of fundamental applications described in RFC 2573 [15] and
the view-based access control mechanism described in RFC 2575 [16].
A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [17].
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Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the mechanisms defined in the SMI.
This memo specifies a MIB module that is compliant to the SMIv2. A
MIB conforming to the SMIv1 can be produced through the appropriate
translations. The resulting translated MIB must be semantically
equivalent, except where objects or events are omitted because no
translation is possible (use of Counter64). Some machine readable
information in SMIv2 will be converted into textual descriptions in
SMIv1 during the translation process. However, this loss of machine
readable information is not considered to change the semantics of the
MIB.
Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. Objects in the MIB are
defined using the subset of Abstract Syntax Notation One (ASN.1)
defined in the SMI. In particular, each object type is named by an
OBJECT IDENTIFIER, an administratively assigned name.
The object type together with an object instance serves to uniquely
identify a specific instantiation of the object. For human
convenience, we often use a textual string, termed the descriptor, to
refer to the object type.
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4. Overview
Although the number of measurement devices that implement IPPM
metrics is growing, there is not currently any standardized
management interface to manage remotely the measurement of these
metrics. This memo defines a Management Information Base for managing
the measurement of IPPM metrics.
To permit metrics to be referenced by other MIBs and other protocols,
the IPPM WG has defined a registry of the current metrics and a
framework for the integration of future metrics in the [IPPM metrics
registry].
As the specification of new metrics is a continuous process, this
memo defines a framework for the integration of the future
standardized metrics.
The IPPM-REPORTING-MIB introduces a framework where each application
identifies its measures in an owner namespace. The administrator may
grant access to a measure, or set of measures to another owner via
view based access control. As a result, one owner may compute
aggregated metrics on another ownerÆs network measures.
Different architectures may be used to perform metric measurements,
using a control protocol and a test protocol. Different control
frameworks are suitable for performing measurements. The memo lists
them, while also looking for a way to integrate them with the IPPM-
REPORTING-MIB. This section is for informational purposes only, and
is intended to help specify the relationship among the test protocol,
the control protocol and the IPPM-REPORTING-MIB.
Special care has been taken to provide a reporting mode suitable for
control protocols and test protocols. It addresses the need to
provide access to results for the applications.
This MIB is intended to handle multiple concurrent sessions by SNMP
applications. However, the SNMP requests are not necessarily to be
handled explicitly by the measurement devices, but can be sent to
middleware performing an aggregation function. This allows for
continuous collection of measurements and statistics computation.
4.1. Textual Conventions
Eight types of data are introduced as textual conventions in this
document: IppmOwnerString, IppmOwnerIndex, TimeUnit, PacketType,
PacketTypeAddress, GMTTimeStamp, IppmStandardMetrics and
IppmMetricResultFilter.
4.1.1 IppmOwnerString
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This octet string is used to represent the owners of the various
measures and reports in the measurement system.
4.1.2 IppmOwnerIndex
This integer identifies an instance of an object in an owner
namespace.
4.1.3 TimeUnit
This textual convention is used to indicate a unit of time, ranging
from nanosecond, microsecond, millisecond, second, hour, day, and
week.
4.1.4 PacketType and PacketTypeAddress
Section 13 of the IPPM framework [2] introduces the generic notion of
a "packet of type P", because in some contexts the metric's value
depends on the type of the packets involved in the metric. In the
definition of a metric, the type P will be explicitly defined,
partially defined, or left generic. Measurement of metrics defined
with generic type P are made specific when performing actual
measurements. It is important that one be conscious of the exact type
of traffic being measured.
The standardization of the management of IPPM measures relies on the
capability to unambiguously configure the type P of the packets, and
the parameters of the protocol suites of the type P.
RMON2 introduced the concept of protocol identifiers. RFC2895 [xxv]
specifies a macro for the definition of protocol identifier. The
RFC2896 [xxvi] defines the protocol identifiers for different
protocol encapsulation trees.
The type P implementation relies on the MACRO PROTOCOL-IDENTIFIER
defined for identifying protocol suites in RMON2. It is achieved by
defining the PacketType and the PacketTypeAddress as new syntax in
SMIv2 TEXTUAL-CONVENTION.
4.1.4.1 Internet addresses
The section 14 of the IPPM framework defines (for the usual case of a
unidirectional path through the Internet) the term "Src" and "Dst".
"Src" denotes the IP address of the beginning of the path, and "Dst"
denotes the IP address of the end.
The section 3 of the RMON PI Reference specifies the Protocol
Identifier Encoding rules, which consists briefly in a recursive
length value format. "Src" and "Dst" are protocol identifier
parameters. Their values are encoded in separated fields using the
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encoding rules of the protocol identifier, but without trailing
parameters.
The packet encapsulation defined in an instance of PacketType embeds
the format of "Src" and "Dst" and their values. The type and value of
these addresses depend on the type P of the packet, IP version 4,
IPV6, IP in IP... Both participate in the completion of the packet
encoding.
Examples:
RFC2896 defines the protocol identifiers ip and ipip4. Should there
be an Internet tunnel end-point of the IP address 192.168.1.1 in the
tunnel 128.2.6.7. the PacketType of the source address of the tunnel,
Src, is 'ip.ipip4'. The encoding of 'ip.ipip4' using the RFC2895
rules adds a trailer 2.0.0. It means that an instance of this
protocol identifier has 2 parameters, which values will be set only
when implemented. In the IPPM PacketType context these 2 parameters
are provided in Src (or Dst). In the current example the value of Src
is "192.168.1.1 128.2.6.7".
4.1.5 GMTTimeStamp
This textual convention defines the time at which an event occurred.
It is very similar to the NTP timestamp format except that it
represents the time elapsed since January 1st, 2000 instead of
January 1st, 1900.
4.1.6 IppmStandardMetrics
Each standard metric is identified in the IPPM-METRICS-REGISTRY under
the node rfc in chronological order. This textual convention defines
an octet string to permit several metrics to be performed in a single
measure.
4.1.7 Report definition
A report consists of sending, or logging, a subset of results of
measurements that have been taken over a period of time. The report
defines actions that are taken on the measurement results. An action
is performed either:
+ For each result
+ On the results corresponding to a measurement cycle
+ On the results available at the measurement completion.
To preserve the scalability of the whole measurement system, it
limits:
+ The amount of data sent to the applications
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+ The bandwidth consumption for uploading the result
+ The number of alarms sent to the applications
+ The amount of data saved in the point of measure
Metric thresholds (low, high, inband, outband...) may be defined that
indicate when measure values should be reported. These values and
their associated time may directly impact service availability.
One may also want to report when particular values (i.e. constantly
over a threshold) repeatedly occur over a period of time. For
example, if one-way-day is constantly over a specified acceptable
threshold value for 10 minutes, then the values should be reported.
The combination of IPPM metric results, threshold events, and event
filtering provides a very efficient mechanism to report measurement
results, events, and alarms.
A report is described using the TEXTUAL-CONVENTION
IppmMetricResultFilter. The report setup must not dramatically
increase the amount of data needed by the control protocol to setup a
measure:
+ A basic report is defined in the object ippmAggrMeasureFilter;
+ More elaborate reports are described using a metric threshold to
generate alarms and events.
+ The generation of alarms and reports requires a management station
address to which the data will be sent.
+ SLA alarms are described using an events duration threshold.
The TEXTUAL-CONVENTION IppmMetricResultFilter specifies the list of
events and actions that are used to create a report.
4.2 Structure of the MIB
The MIB is arranged as follow:
- ippmSystem Group:
+ ippmPointOfMeasureTable;
+ ippmSynchronizationTable;
+ ippmMetricsTable.
- ippmOwners Group:
-
+ ippmOwnersTable;
- ippmHistory Group:
-
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+ ippmHistoryTable;
- ippmNetMeasure Group:
-
+ ippmNetMeasureTable;
- ippmAggrMeasure Group:
-
+ ippmAggrMeasureTable.
- ippmNotifications
4.2.1 The ippmSystem Group
The implementation of this group is mandatory.
This group consists of a set of parameters describing the clock
synchronization at a particular point of measure over time, as well
as the system clock of the IPPM-REPORTING-MIB agent.
The table ippmPointOfMeasureTable describes the points of measure.
The table ippmSynchronisationTable is critical to the implementation,
especially to be respectful of the Section 6.3. of the IPPM
Framework, which states that
"Those who develop such measurement methodologies should strive to:
+ Minimize their uncertainties/errors,
+ Understand and document the sources of uncertainty/error, and
+ Quantify the amounts of uncertainty/error."
Consequently the table ippmSynchronisationTable makes these values
available to compute reliable statistics.
The table ippmMetricsTable list all the IPPM metrics using the
registry order and describes their implementation (unit...).
4.2.2 The ippmOwners Group
This group identifies an owner, or group of owners, that have access
to measurements on a probe.
4.2.3 The ippmHistory Group
The results of any given measure are stored in the ippmHistoryTable.
The indexing is such that there is an entry in this table for each
result of a given measure for a given metric.
4.2.4 The ippmNetMeasure Group
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The control protocol registers a description of the existing network
measures in the ippmNetMeasureTable.
This group displays the network measures defined by the control
protocol. The results are saved in the ippmHistoryTable.
ippmNetMeasureTable is a reflection of the configuration of the
network measure.
4.2.5 The ippmAggrMeasure Group
ippmAggrMeasureTable is responsible for the aggregation of results.
The aggregated results are saved in the ippmHistoryTable and may be
used for higher aggregated measures.
4.2.6 The Notification Group
The Notification group specifies a list of valid notifications. They
are used to generate alarms, or reports, to management applications.
4.3 Row identification in an application namespace
IPPM metrics measurement is a distributed task. An owner namespace is
defined to avoid the need of polling to determine the next free
index, to avoid index collision when 2 applications are looking for a
new index as the same time; to increase the speed of the management
operations; to reduce bandwidth consumption and to reduce CPU load in
the agents and applications.
In a MIB, an object instance identifier is defined by the clause
INDEX of the table as a list of objects.
The owner namespace is defined in the INDEX as a couple of 2 objects
where the type of first one is IppmOwnerString and the type of the
second is IppmOwnerIndex.
The first term of the instance identifier is the name of the owner.
The second term is an private index managed by the owner. This index
value is unique in an owner namespace. Before the creation of an
instance the creator pick up an IppmOwnerIndex value not in use.
This allows the user to choose arbitrary values for the remaining
fields of the INDEX clause without checking that the values of these
fields exists in the MIB tables. Moreover this allows the owner to
use the same instance identifier over a set of IPPM MIB
implementations.
Measurements are requested by management applications. An instance of
an object managed by a management station is identified by the
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management station IppmOwnerString and the private index provided by
the MS.
4.4 Relationship of IPPM REPORTING MIB tables
There is inherently a relationship between various tables in the IPPM
REPORTING MIB, and as such, the data integrity must be assured. This
relationship is depicted in the following examples.
4.4.1 Relationship between the Owners Table and the aggregated
measure table
The owners table contains the list of "owners" that can create and
activate remotely aggregated measures in an IPPM agent, or read the
existing network measures.
It is recommended to make use of "view based access control" in order
to restrict access to this table. For example, the master user
"administrator" may be given "write" privileges on the
ippmOwnersTable, whereas all others are restricted to "read" access.
The user "administrator" can then setup the list of other users that
have access to measures.
There must be at least 1 owner in the owners' table. This owner may
be either setup by default by the IPPM agent, or configured as stated
above.
An owner may have multiple corresponding entries in the network and
aggregated measure tables. Each entry in a measure table is
associated with one, and only one, entry in the owners' table. That
is to say, that a defined measure may NOT have multiple owners.
Thus, we have a 1:N relationship between the owners' table and a
measure table.
4.4.2 Relationship between the Network Measure Table and the
Aggregated Measure Table
The network measure table is read-only, thus entries in this table
must be populated by the agent upon startup.
The agent could potentially read a database that contains network
measures configured by a 3rd party proprietary management system that
directly interacts with the points of measure. However, the "owner"
of the measure must be defined in the owners table. It may be either
configured directly, or exported to the agent by the external
measurement tool.
The aggregated measure table allows for an "owner" to create
aggregated measures (such as average, minimum, maximum...) on
existing measures. An owner may even create aggregated measures on
network measures that are owned by other owners. However, it is
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recommended to use view based access control to grant access of
network measures to other owners in the system.
5 Measurement architectures
There are three main measurement architectures.
5.1 Proxy architecture
. +----+ +----+
. |NMS1| |NMS2|
. +----+ +----+
. ^ ^
. | |
. +----------+ +----------+
. | |
. SNMP or Sibling
. | |
. v v
. +--------------------------+
. | IPPM-REPORTING-MIB agent |
. +--------------------------+
. ^ ^
. | |
. OWDP-Control
. | |
. +----------+ +----------+
. | |
. v v
.+----------------+ +------------------+
.| Packets-Sender |--OWDP-Test-->| Packets-Receiver |
.+----------------+ +------------------+
In this architecture, the different NMSÆs query the IPPM-REPORTING-
MIB agent for measurements. The agent controls whether the NMS is
granted access to perform the measure requested. Each NMS may access
the results of its measurements in the IPPM-REPORTING-MIB history
table.
The measurement setup/teardown and the data collection are done using
the control protocol and the test protocol.
In this mode the NMS does not depend on the control protocol nor on
the test protocol. The entities involved in the measurement do not
need to implement the IPPM-REPORTING-MIB nor SNMP. This mode allows
for lightweight implementation in the point of measure, and also for
heterogeneous control protocols to coexist.
Finally, the proxy is a checkpoint where measurement activity may be
logged, and where access to measurement setups may be tightly
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controlled. Thus, it provides a reliable architecture to manage the
security of a measurement system.
5.2 Reporting architecture
In this architecture the SNMP protocol is only used to read the
results of the measurements in the IPPM-REPORTING-MIB History Table,
and also to inform the NMS that an event has occurred.
. +----+ +----+
. |NMS1| |NMS2|
. +----+ +----+
. ^ ^ ^ ^
. | | | |
. SNMP| SNMP|
. | | | |
. | | | |
. | OWDP | OWDP
. |Control |Control
. | | | |
. | | +------------------------------+
. | | | | |
. | | +--|---------------------------+ |
. | | | | | |
. | +--|--|------------------------+ | |
. | | | | | | |
. +--------+---------------------+ | |
. | | | | | | | |
. | | | | | | | |
. v v v v v v v v
. +------------------+ +------------------+
. |IPPM-REPORTING-MIB| |IPPM-REPORTING-MIB|
. | agent | | agent |
. +------------------+ +------------------+
. | Packets-Sender |--OWDP-Test-->| Packets-Receiver |
. +------------------+ +------------------+
The activation of a measure by the control protocol or the test
protocol creates a measure in the IPPM-REPORTING-MIB Network Measure
table. The table in question may be not accessible by SNMP. In this
case, a list of the measure identifiers (owner, index) is handled by
the measurement software.
Each timestamped result of the measure is logged in the IPPM-
REPORTING-MIB History table in order to allow read access to the
NMSÆs and event handling.
On completion, the measurement results are managed according to the
measure setup:
+ The results may be sent to an NMS;
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+ They may be dropped from the IPPM-REPORTING-MIB History table.
In this mode, it is recommended to use an SNMPv2 Inform PDU to send
reporting events because it ensures that the entire block of the
result is received. There is no control using SNMP Trap PDU.
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5.3 Gateway architecture
The gateway architecture combines the proxy mode and the reporting
mode.
. +-------+ +------+
. | NMS1 | | NMS2 |
. +-------+ +------+
. ^ ^
. | |
. SNMP SNMP
. | |
. | +----------------------------------------+
. | | |
. +-------------+ +------------------+
. | | | | |
. +----------------------------------------+ |
. | | | | | |
. | | v v | |
. | | +------------------------+ | |
. | | | IPPM-REPORTING-MIB | | |
. | | | Gateway | | |
. | | +------------------------+ | |
. | | | control server | | |
. | | +------------------------+ | |
. | | ^ ^ | |
. | | | | | |
. | | OWDP-Control protocol | |
. | | | | | |
. | | +-----+ +-------+ | |
. | | | | | |
. v v v v v v
. +-------------+---------+ +--------+-------------+
. | IPPM- | Packets | |Packets | IPPM |
. |REPORTING-MIB| Sender | |Receiver|REPORTING-MIB|
. | agent | |-OWDP-Test->| | agent |
. +-------------+---------+ +--------+-------------+
The NMS measurement queries are registered in the IPPM-REPORTING-MIB
gateway and performed by the control and the test protocol. The NMS
directly consults the result in the corresponding IPPM REPORTING MIB
agent of the points of measure.
5.4 Security
The proxy mode provides flexibility and control of the access to the
points of measure, while allowing lightweight control protocol and
test protocol implementations in the points of measure. Different
security rules may be applied to the NMS domain and to measurement
system domains.
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The reporting mode has 2 security domains:
+ The control of the measurement setup relies on the control and
the test protocol security mechanisms;
+ The control of access to the results depends on the SNMP
security mechanisms such as community strings, but may also be
restricted using VACM for customized access.
The gateway mode security relies on the security of the proxy mode
and of the reporting mode.
6 Reporting mode integration
The IPPM-REPORTING-MIB standardizes the parameters that:
+ Define the configuration of the IPPM metric measures;
+ Define the format of the results of the measure;
+ Define the report of the IPPM metric measure results.
It introduces the concept of owner namespace to allow for fast
configuration and reporting across multiple points of measurement.
A measure is a distributed object describing a task to be performed
by the control and the test protocols. A measure is identified by its
owner and its owner index. This identifier is the same in all the
points of measure. As the owner chooses the index, there is no need
for negotiation between the NMS and the points of measure before
activating the measure.
A measure is primarily defined by its identifier, the metrics to
measure, the description of the end point addresses and the
description of the scheduling of the measure.
The description of the measure is distributed to the points of
measure involved. The distribution may not be synchronized.
6.1 Integration
The integration of the IPPM-REPORTING-MIB, and the test and control
protocols consists in pushing the network measure setup/teardown
parameters and the result values from the measurement software to the
IPPM-REPORTING-MIB agent.
6.2 Setup of the network measure table
The measurement system updates the MIB on creation of a network measure.
6.3 Setup of the aggregated measure table
There are 2 ways to setup an aggregated measure:
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The measurement system updates the MIB on creation of an aggregated
measure;
An SNMP application creates an aggregated measure.
6.4 Updating the history of the MIB
Results have to be written by the measurement task in the agent
implementing the IPPM REPORTING MIB.
Adding the results of a measurement consists in the transfer of the
result from the measurement software to the SNMP agent. The protocol
that provides the result may be the control protocol, or the test
protocol, or another mechanism.
6.5 Default value
The default values correspond to IP version 4.
7 Definition
IPPM-REPORTING-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY,
NOTIFICATION-TYPE,
OBJECT-TYPE,
experimental ,Integer32, zeroDotZero, Counter64, Unsigned32
FROM SNMPv2-SMI
--
-- ippm
-- FROM IPPM-REGISTRY
--
InetAddressType,
InetAddress
FROM INET-ADDRESS-MIB
SnmpAdminString
FROM SNMP-FRAMEWORK-MIB
RowStatus,
StorageType,
TEXTUAL-CONVENTION
FROM SNMPv2-TC
MODULE-COMPLIANCE,
OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF;
ippmReportingMib MODULE-IDENTITY
LAST-UPDATED "200402121200Z" -- 12 February 2004
ORGANIZATION "France Telecom - R&D"
CONTACT-INFO
"Emile Stephan
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France Telecom - R&D
2, Avenue Pierre Marzin
Technopole Anticipa
22307 Lannion Cedex
FRANCE
Tel: + 33 2 96 05 36 10
E-mail: emile.stephan@francetelecom.com
Jessie Jewitt
France Telecom - R&D
801 Gateway Blvd. Suit 500
South San Francisco, CA 94080
Tel : 1 650 875-1524
E-mail : jessie.jewitt@rd.francetelecom.com"
DESCRIPTION
" This memo defines a portion of the Management Information Base
(MIB) for use with network management protocols in TCP/IP-based
internets. In particular, it specifies the objects used for
managing the results of the IPPM metrics measurements, alarms and
reporting of measurement results."
REVISION "200210181200Z" -- 18 October 2002
DESCRIPTION
"General cleanup
Change 5 tables to read write"
REVISION "200302141200Z" -- 14 February 2003
DESCRIPTION
"Modifications based upon feedback from IETF-55"
REVISION "200306291200Z" -- 29 June 2003
DESCRIPTION
"Adaptation to VACM, preparation of the final version"
REVISION "200310241200Z" -- 24 October 2003
DESCRIPTION
"Modifications based upon feedback from experimental
implementation."
REVISION "200402121200Z" -- 12 February 2004
DESCRIPTION
"Modifications based upon feedback 58th IETF: The report group
and the corresponding notification are removed."
::= { experimental 10001 } -- XXX to be assigned by IANA
ippm OBJECT IDENTIFIER ::= { experimental 10000 }
--
-- TEXTUAL-CONVENTION
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--
IppmOwnerString ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The owner namespace is defined in the INDEX of a table as a
couple of 2 objects where the type of the first one is
IppmOwnerString and the type of the second is IppmOwnerIndex.
IppmOwnerString is an OwnerString which length is limited to 32
bytes."
SYNTAX OCTET STRING (SIZE (0..32))
IppmOwnerIndex ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The owner namespace is defined in the INDEX of a table as a
couple of 2 objects where the type of first one is
IppmOwnerString and the type of the second is IppmOwnerIndex.
An object of type IppmOwnerIndex uniquely identifies a row of a
table inside an owner namespace.
Inside one namespace several objects of type IppmOwnerIndex
coexist and share the IppmOwnerIndex range of values to provide a
unique instance identifier.
"
SYNTAX Unsigned32 (1.. 65535)
TimeUnit ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"A enumerated list of time units."
SYNTAX INTEGER {
week(1),
day(2),
hour(3),
minute(4),
second(5),
millisecond(6),
microsecond(7),
nanosecond(8)
}
--
--
IppmStandardMetrics ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
" Each standard metric is identified in the IPPM-METRICS-
REGISTRY under the node rfc in chronological order. In order to
allow for several metrics to be calculated in a single measure,
there is a need to describe in a bit string the metrics to be
measured.
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This textual convention defines an octet string that gathers in a
bit string a sequence of bits. The bit order corresponds to the
order of the metric identifiers in the registry.
The first bit of the string has the index 0. The index 1
corresponds to the first metric of the registry
(instantaneousUnidirectionalConnectivity ).
Example:
One-way-Delay(6) is identified as the leaf number 6 of the node
rfc of the registry. One-way-Packet-Loss(12) is identified as the
leaf number 12 of the node
rfc of the registry. A network measure performing both One-way-
Delay(6) and One-way-Packet-Loss(12) will be described as
'0001000001000000'b, '1040'B.
"
SYNTAX OCTET STRING (SIZE (1..64))
IppmMetricsRegistryIndex ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"IppmMetricsRegistryIndex defines an unambiguous index for each
standardized metric. It identifies a metric, and as such its
value is the value of the node of the metric in the IPPM
registry. This value is the same in any implementation of the
IPPM REPORTING MIB.
Example:
In the IPPM-METRICS-REGISTRY, onewayPacketLossAverage is
registered as the node 14 of ippmMetricsRegistry.metrics.rfc.
Consequently the index of the metric onewayPacketLossAverage in
the IppmMetricsTable will always be '14'. At large an instance,
which type is IppmMetricsRegistryIndex and which value is '14',
points to the metric onewayPacketLossAverage."
SYNTAX Unsigned32 (1.. 65535)
GMTTimeStamp ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"The time value at which a measure or an event took place.
field octets contents range
----- ------ -------- -----
1 1-4 second since 1 Jan 1900 0H00* 0..2^31 - 1
2 5-8 fractional part of the second* 0..2^32 - 1
* the value is in network-byte order
The timestamp format is the NTP timestamp format [RFC 1305].
The reference of time is GMT.
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"
SYNTAX OCTET STRING (SIZE (8))
PacketType ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This textual convention is a display string used to describe the
protocol encapsulation list of a packet, and is used as the value
of the SYNTAX clause for the type of the Src and Dst of an IPPM
measure. The RFC2895 specifies a macro named PROTOCOL-IDENTIFIER
for the definition of protocol identifiers, while its companion
document, the RFC2896 defines a set of protocol identifiers.
PacketType is defined as a display string. It consists of a list
of dot separated protocol names. Each protocol name has been
previously defined using the macro PROTOCOL-IDENTIFIER of the RFC
2895.
Examples:
The RFC2896 defines the protocol identifiers 'ether2', 'ip',
'ipip4', 'udp', 'tcp', 'telnet'...
The PacketType of the source address corresponding to telnet is
the string 'ip.tcp.telnet'.
The PacketType of the source address corresponding to UDP packets
sent in an IP tunnel is the string 'ip.ipip4.udp'.
Note:
An IPPM measure is active, so generally a PacketType value does
not describe the link layer (i.e. ether2...). Valid Internet
packets are sent from Src to Dst. Then the choice of the link
layer relies on the Internet stack."
SYNTAX OCTET STRING (SIZE (0..512))
PacketTypeAddress ::= TEXTUAL-CONVENTION
DISPLAY-HINT "255a"
STATUS current
DESCRIPTION
"This textual convention is a Display string used to describe the
parameters of the protocol encapsulation list of a packet,
basically the address.
PacketTypeAddress is defined as a display string. It consists in
a list of blank separated addresses that reflect the
encapsulation of the PacketType. Each parameter in the list
corresponds to a parameter of a PROTOCOL-IDENTIFIER of the
PacketType.
Example:
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The PacketType 'ip.ipip4' has 2 parameters. A valid
PacketTypeAddress value is '192.168.1.1 128.2.6.7'."
SYNTAX OCTET STRING (SIZE (0..512))
IppmMetricResultFilter ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
" Given that not all results from a metric measurement are
pertinent, and that the size of the history must be limited whenever
possible, the TC IppmMetricResultFilter defines basic filters to
limit the among of data collected:
Filter's parameters are the 2 fields ippmAggrMeasureLowThreshold and
ippmAggrMeasureLowThreshold of the aggregated measure setup.
A filter determines if the result of the current aggregation has to
be stored:
LogInBandValue:
The value is stored if it is lower than the high threshold of
the aggregated measure setup and greater than the low
threshold of of the aggregated measure setup.
LogOutBandValue:
The value is stored if it is greater than the high threshold
of the aggregated measure setup or lower than the low
threshold of the aggregated measure setup.
LogAboveValue:
The value is stored if it is greater than the high threshold
of the aggregated measure setup.
LogBelowValue:
The value is stored if it is lower than the low metric
threshold field of the aggregated measure setup.
logUpAndDownValue:
This filter stores contiguous results that are on opposite
sides of the up and down metric thresholds:
A result is stored if it is the first result aggregated:
If it is greater than the high threshold and lower than the
low threshold then its value is set to the value of the low
threshold;
A result greater than the high threshold is stored if the
previous result is lower than the low threshold;
A result lower than the low threshold is stored if the
previous result is greater than the high threshold;
"
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SYNTAX INTEGER {
logInBandValue(1),
logOutBandValue(2),
logAboveValue(3),
logBelowValue(4),
logUpAndDownValue(5)
}
--
-- IPPM Notifications
--
ippmNotifications OBJECT IDENTIFIER ::= { ippm 0 }
--
-- IPPM Conformance
--
ippmConformance OBJECT IDENTIFIER ::= { ippm 1 }
--
-- IPPM MIB Object definitions
--
ippmSystem OBJECT IDENTIFIER ::= { ippmReportingMib 1 }
ippmOwners OBJECT IDENTIFIER ::= { ippmReportingMib 2 }
ippmHistory OBJECT IDENTIFIER ::= { ippmReportingMib 3 }
ippmNetMeasure OBJECT IDENTIFIER ::= { ippmReportingMib 4 }
ippmAggrMeasure OBJECT IDENTIFIER ::= { ippmReportingMib 5 }
--
-- ippmSystem Group
--
--
ippmSystemTime OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current time of the system running the IPPM REPORTING MIB
SNMP agent. When the agent is running in proxy mode, it is the
current time of the proxy agent.
When the agent is located in the probe, it is the current time of
the probe agent. "
::= { ippmSystem 1 }
ippmSystemSynchronizationType OBJECT-TYPE
SYNTAX INTEGER {
other(0),
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ntp(1),
gps(2),
cdma(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"ippmSystemSynchronizationType describes the mechanism
used to synchronize the system running the IPPM REPORTING MIB
SNMP agent.
Other(0)
The synchronization process must be defined
in the ippmSystemSynchonizationDescription.
Ntp(1)
The system is synchronized using the network
time protocol. The NTP synchronization must be described
in the ippmSystemSynchonizationDescription.
Gps(2)
The system is synchronized using the GPS clocks.
Cdma(3)
The system is synchronized using the CDMA clocks."
::= { ippmSystem 2 }
ippmSystemSynchronizationDesc OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The description of the synchronization process of the system
running the IPPM REPORTING MIB SNMP agent."
::= { ippmSystem 3 }
ippmSystemClockResolution OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Nanoseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"ippmSystemClockResolution provides the precision of the clock
used for the measures . The unit is the nanosecond. For example,
the clock on an old Unix host might advance only once every 10
msec, and thus have a resolution of 10 msec. So its resolution is
10000000 nanoseconds and the value of ippmSystemClockResolution
is 10000000."
::= { ippmSystem 4 }
ippmSystemOperationalStatus OBJECT-TYPE
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SYNTAX INTEGER {
unknown(0),
up(1),
down(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object describes the status of the system running the IPPM
REPORTING MIB SNMP agent. It does not describe end point measurement
status.
unknown(0) means the service is unknown.
up(1) means the service is operational and available for general
use.
down(2) means the agent is not available for use.
"
::= { ippmSystem 5 }
ippmSystemAggregatedMetrics OBJECT-TYPE
SYNTAX IppmStandardMetrics
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" ippmSystemAggregatedMetrics lists the aggregated metrics that
are performed in the SNMP agent instead of in the point of
measure."
::= { ippmSystem 6 }
ippmSynchronizationTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmSynchronizationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This table registers the event related to the synchronization of
the points of measure. Each event is described in an
ippmSynchronizationEntry.
ippmSynchronizationTable is mandatory.
ippmSynchronizationTable content is read only."
::= { ippmSystem 7 }
ippmSynchronizationEntry OBJECT-TYPE
SYNTAX IppmSynchronizationEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describes a modification of the synchronization
status."
INDEX { ippmPointOfMeasureIndex, ippmSynchronizationIndex }
::= { ippmSynchronizationTable 1 }
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IppmSynchronizationEntry ::=
SEQUENCE {
ippmSynchronizationIndex Unsigned32,
ippmSynchronizationTime GMTTimeStamp,
ippmSynchronizationStratum Unsigned32,
ippmSynchronizationResolution Unsigned32
}
ippmSynchronizationIndex OBJECT-TYPE
SYNTAX Unsigned32 (1 .. 65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index that identifies the synchronization events in
chronological order.
65535 is an arbitrary size. It is not recommended to keep
permanently a history of 65535 events."
::= { ippmSynchronizationEntry 1 }
ippmSynchronizationTime OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the synchronization event occurs."
::= { ippmSynchronizationEntry 2 }
ippmSynchronizationStratum OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The stratum level of the clock computed when the synchronization
event occurs."
::= { ippmSynchronizationEntry 3 }
ippmSynchronizationResolution OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Nanoseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The new time resolution computed after the synchronization event
occurred."
::= { ippmSynchronizationEntry 4 }
ippmPointOfMeasureTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmPointOfMeasureEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
" This table is the list of measurement end points available in
the measurement system.
Proxy mode:
It is the list of the measurement end points of the set of probes
for which the IPPM agent provides an SNMP interface.
IPPM MIB implemented in a probe:
It is the list of the measurement end points of the probe.
The ippmPointOfMeasureTable content is read only. This implies
that the measurement software handles the table internally
ippmPointOfMeasureTable is mandatory."
::= { ippmSystem 8 }
ippmPointOfMeasureEntry OBJECT-TYPE
SYNTAX IppmPointOfMeasureEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" An entry may be the management address of some middleware in
charge of the management of a set of probes. It may the
management address of a probe that contains several line cards.
An entry describes the capability of a point of measure.
ippmPointOfMeasureMetrics lists the metrics handles by the point
of measure."
INDEX { ippmPointOfMeasureIndex }
::= { ippmPointOfMeasureTable 1 }
IppmPointOfMeasureEntry ::= SEQUENCE {
ippmPointOfMeasureIndex Unsigned32,
ippmPointOfMeasureMgmtAddrType InetAddressType,
ippmPointOfMeasureMgmtAddress InetAddress,
ippmPointOfMeasureTestAddrType InetAddressType,
ippmPointOfMeasureTestAddress InetAddress,
ippmPointOfMeasureMetrics IppmStandardMetrics
}
ippmPointOfMeasureIndex OBJECT-TYPE
SYNTAX Unsigned32 (1 .. 65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A local index that identifies an entry in the point of measure
table."
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::= { ippmPointOfMeasureEntry 1 }
ippmPointOfMeasureMgmtAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The address type associated with the management address."
::= { ippmPointOfMeasureEntry 2 }
ippmPointOfMeasureMgmtAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (1..128))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The management address on the point of measure"
::= { ippmPointOfMeasureEntry 3 }
ippmPointOfMeasureTestAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines the address type of the measurement interface of the
point of measure."
::= { ippmPointOfMeasureEntry 4 }
ippmPointOfMeasureTestAddress OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the address of the measurement interface for the point
of measure."
::= { ippmPointOfMeasureEntry 5}
ippmPointOfMeasureMetrics OBJECT-TYPE
SYNTAX IppmStandardMetrics
MAX-ACCESS read-only
STATUS current
DESCRIPTION
" ippmPointOfMeasureMetrics lists the metrics this point of
measure implements."
::= { ippmPointOfMeasureEntry 6 }
ippmMetricsTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmMetricsEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"This table is mandatory. It describes the current
implementation. Each IPPM standardized metric must be described
in the table.
ippmMetricsTable content is read only."
::= { ippmSystem 9 }
ippmMetricsEntry OBJECT-TYPE
SYNTAX IppmMetricsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry describes the static capabilities of a metric
implementation."
INDEX { ippmMetricsIndex }
::= { ippmMetricsTable 1 }
IppmMetricsEntry ::=
SEQUENCE {
ippmMetricsIndex IppmMetricsRegistryIndex,
ippmMetricsType INTEGER,
ippmMetricsUnit INTEGER,
ippmMetricsDescription SnmpAdminString
}
ippmMetricsIndex OBJECT-TYPE
SYNTAX IppmMetricsRegistryIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"ippmMetricsIndex defines an unambiguous index for each
standardized metric. It identifies a metric, and as such its
value is the value of the node of the metric in the IPPM
registry. This value is the same in any implementation of the
IPPM REPORTING MIB.
Example:
In the IPPM-METRICS-REGISTRY, onewayPacketLossAverage is
registered as the node 14 of ippmMetricsRegistry.metrics.rfc.
Consequently the index of the metric onewayPacketLossAverage in
the IppmMetricsTable will always be '14'"
::= { ippmMetricsEntry 1 }
ippmMetricsType OBJECT-TYPE
SYNTAX INTEGER {
network(0),
aggregated(1)
}
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"Indicates the metric type, whether it is network or aggregated"
::= { ippmMetricsEntry 2 }
ippmMetricsUnit OBJECT-TYPE
SYNTAX INTEGER {
noUnit(0),
second(1),
millisecond(2),
microsecond(3),
nanosecond(4),
percentage(5),
packet(6),
byte(7),
kilobyte(8),
megabyte(9)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The unit used in the current entity for the results of the
measurement of this metric."
::= { ippmMetricsEntry 3 }
ippmMetricsDescription OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"A textual description of the metric implementation following the
exact name of this metric in the registry. For example:
oneWayDelay: OWD Metric ."
::= { ippmMetricsEntry 4 }
--
-- ippmOwners Group
--
-- The ippmOwners objects are responsible for managing
-- the owners access to the measurements.
--
--
ippmOwnersTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmOwnersEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A management entity wishing to access or aggregate remote Ippm
measurements in an agent must previously be registered in the
ippmOwnersTable. This table is read-create and contains at least the
owner 'monitor'."
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::= { ippmOwners 1 }
ippmOwnersEntry OBJECT-TYPE
SYNTAX IppmOwnersEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The description of the resources granted to an SNMP application.
For example, an instance of ippmOwnersOwner with an
IppmOwnerString 'acme', which represents the 14th owner created
in ippmOwnersTable would be named ippmOwnersEntryOwner.14.
"
INDEX { ippmOwnersOwner }
::= { ippmOwnersTable 1 }
IppmOwnersEntry ::= SEQUENCE {
ippmOwnersOwner IppmOwnerString,
ippmOwnersGrantedMetrics IppmStandardMetrics,
ippmOwnersQuota Unsigned32,
ippmOwnersIpAddressType InetAddressType,
ippmOwnersIpAddress InetAddress,
ippmOwnersEmail SnmpAdminString,
ippmOwnersStatus RowStatus
}
ippmOwnersOwner OBJECT-TYPE
SYNTAX IppmOwnerString
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner described by this entry."
::= { ippmOwnersEntry 1 }
ippmOwnersGrantedMetrics OBJECT-TYPE
SYNTAX IppmStandardMetrics
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" Defines the metrics granted to an owner for which measurements
can be performed."
::= { ippmOwnersEntry 2 }
ippmOwnersQuota OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
" The maximum number of records that this owner may have in the
history table and in the report table."
::= { ippmOwnersEntry 3 }
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ippmOwnersIpAddressType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP address type of the management entity corresponding to
this owner.
InetAddressType is restricted to ipv4(1),ipv6(2)and dns(16). "
::= { ippmOwnersEntry 4 }
ippmOwnersIpAddress OBJECT-TYPE
SYNTAX InetAddress (SIZE (1..128))
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The IP address of the management entity corresponding to this
owner. For example, the IP address of the management console used
to send SNMP requests."
::= { ippmOwnersEntry 5 }
ippmOwnersEmail OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The email address of the management entity corresponding to this
owner."
::= { ippmOwnersEntry 6 }
ippmOwnersStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this table entry. Once this status is set to
active, the corresponding entry in the table may not be
modified."
::= { ippmOwnersEntry 7 }
--
-- ippmHistory Group
--
--
-- ippmHistoryTable
--
ippmHistoryTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmHistoryEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"The table containing the measurement results."
::= { ippmHistory 1 }
ippmHistoryEntry OBJECT-TYPE
SYNTAX IppmHistoryEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An ippmHistoryEntry entry is one of the results of a measure
identified by ippmHistoryMeasureOwner, ippmHistoryMeasureIndex,
ippmHistoryMetricIndex and ippmHistorySequence.
In the index :
+ ippmHistoryMeasureOwner identifies the owner of the measure;
+ ippmHistoryMeasureIndex identifies the measure in the owner
namespace;
+ ippmHistoryMetricIndex identifies the metric measured by the
measure. The metric is described in the corresponding entry of
the ippmMetricsTable;
+ ippmHistorySequence is the sequence number of the measurement
result for an entry in the history table."
INDEX { ippmHistoryMeasureOwner, ippmHistoryMeasureIndex,
ippmHistoryMetricIndex, ippmHistorySequence }
::= { ippmHistoryTable 1 }
IppmHistoryEntry ::=
SEQUENCE {
ippmHistoryMeasureOwner IppmOwnerString,
ippmHistoryMeasureIndex IppmOwnerIndex,
ippmHistoryMetricIndex IppmMetricsRegistryIndex,
ippmHistorySequence Unsigned32,
ippmHistoryTimestamp GMTTimeStamp,
ippmHistoryValue Integer32
}
ippmHistoryMeasureOwner OBJECT-TYPE
SYNTAX IppmOwnerString
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner of the measure that produced this result. The measure
is either an ippmNetMeasure or an ippmAggrMeasure."
::= { ippmHistoryEntry 1 }
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ippmHistoryMeasureIndex OBJECT-TYPE
SYNTAX IppmOwnerIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner index of the measure that produced this result. The
measure is either an entry of the ippmNetMeasureTable or of the
ippmAggrMeasureTable."
::= { ippmHistoryEntry 2 }
ippmHistoryMetricIndex OBJECT-TYPE
SYNTAX IppmMetricsRegistryIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" ippmHistoryMetricIndex identifies the metric measured by the
measure. The metric is described in the corresponding entry of
the ippmMetricsTable."
::= { ippmHistoryEntry 3 }
ippmHistorySequence OBJECT-TYPE
SYNTAX Unsigned32 (0..4294967295)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"ippmHistorySequence is the sequence number of the measurement
results for a metric.
Network metrics:
It's the sequence number of a measurement packet. Typically, it
identifies the order of the packet in the stream of packets sent
by the source.
Aggregated metrics:
It is the sequence order of the aggregation computed."
::= { ippmHistoryEntry 4 }
ippmHistoryTimestamp OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The timestamp when the measurement occurred."
::= { ippmHistoryEntry 5 }
ippmHistoryValue OBJECT-TYPE
SYNTAX Integer32
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The observed value of the measurement."
::= { ippmHistoryEntry 6 }
ippmHistoryPathToResults OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"It is typically an URL describing the file location where bulk
results are logged."
::= { ippmHistory 2 }
--
-- ippmNetMeasure Group
--
--
-- ippmNetMeasureTable
--
--
ippmNetMeasureTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmNetMeasureEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry is a measurement that performs network measures and
provides results.
It performs several metric measurements per packet exchange. Each
step of a measure produces a singleton result per metric. The
time of the measurement and the value of the metric are saved in
the ippmHistoryTable."
::= { ippmNetMeasure 1 }
ippmNetMeasureEntry OBJECT-TYPE
SYNTAX IppmNetMeasureEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
" The IppmNetMeasureTable is mandatory, and its content is read
only. It means that the measurement software handles the table
internally. The setup of the network measure is not permitted
through the IPPM REPORTING MIB. As an example, OWAP provides a
setup protocol to setup and tear down networks measures.
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The ippmNetMeasureMetrics is set to a list of metrics to be
computed from the same raw packet exchange. Each step of
measurement delivers a singleton per metric. Results are
timestamped and saved in the ippmHistoryTable.
One may create aggregated measures by using the results of
network measures."
INDEX { ippmNetMeasureOwner, ippmNetMeasureIndex }
::= { ippmNetMeasureTable 1 }
IppmNetMeasureEntry ::= SEQUENCE {
ippmNetMeasureOwner IppmOwnerString,
ippmNetMeasureIndex IppmOwnerIndex,
ippmNetMeasureName SnmpAdminString,
ippmNetMeasureMetrics IppmStandardMetrics,
ippmNetMeasureBeginTime GMTTimeStamp,
ippmNetMeasureCollectionRateUnit TimeUnit,
ippmNetMeasureCollectionRate Unsigned32,
ippmNetMeasureDurationUnit TimeUnit,
ippmNetMeasureDuration Unsigned32,
ippmNetMeasureHistorySize Unsigned32,
ippmNetMeasureFailureMgmtMode INTEGER,
ippmNetMeasureResultsMgmt INTEGER,
ippmNetMeasureSrcPacketType PacketType,
ippmNetMeasureSrc PacketTypeAddress,
ippmNetMeasureDstPacketType PacketType,
ippmNetMeasureDst PacketTypeAddress,
ippmNetMeasureTxMode INTEGER,
ippmNetMeasureTxPacketRateUnit TimeUnit,
ippmNetMeasureTxPacketRate Unsigned32,
ippmNetMeasureMedOrBurstSize Unsigned32,
ippmNetMeasureDevOrIntBurstSize Unsigned32,
ippmNetMeasureLossTimeout Unsigned32,
ippmNetMeasureL3PacketSize Unsigned32,
ippmNetMeasureDataPattern OCTET STRING,
ippmNetMeasureTotalPktsRecv Counter64,
ippmNetMeasureLastUpdate GMTTimeStamp,
ippmNetMeasureOperState INTEGER
}
ippmNetMeasureOwner OBJECT-TYPE
SYNTAX IppmOwnerString
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner of the network measure."
::= { ippmNetMeasureEntry 1 }
ippmNetMeasureIndex OBJECT-TYPE
SYNTAX IppmOwnerIndex
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MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner index of the network measure."
::= { ippmNetMeasureEntry 2 }
ippmNetMeasureName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The name of the metric instance(s) as defined in
ippmNetMeasureMetrics. It illustrates the specificity of the
metric(s) and includes the metric(s) and the PacketType.
Example:
IP-TCP-HTTP-One-way-Delay: free text "
::= { ippmNetMeasureEntry 3 }
ippmNetMeasureMetrics OBJECT-TYPE
SYNTAX IppmStandardMetrics
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"ippmNetMeasureMetrics defines the metrics to compute within this
measure. Only network metrics of the same type are allowed in
this field (e.g. poisson-based metrics and periodic-based metrics
are incompatibles, while one-way delay and packet loss are
generally processed simultaneously: a very bad delay is
potentially a very good packet loss).
Results are saved in the ippmHistoryTable. Results of a metric
are identified using an index of type IppmMetricsRegistryIndex.
Example:
Given a multi-metrics measure of One-way-Delay(6) and One-way-
Packet-Loss(12). The value of the field ippmNetMeasureMetrics is
'0001000001000000'b, '1040'B. Results are logged in the
ippmHistoryTable where One-way-Delay singletons have a value of
ippmMetricsIndex of 6 while One-way-Packet-Loss singletons have a
value of ippmMetricsIndex of 12.
"
::= { ippmNetMeasureEntry 4 }
ippmNetMeasureBeginTime OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"Specifies the time at which the measurement begins."
::= { ippmNetMeasureEntry 5 }
ippmNetMeasureCollectionRateUnit OBJECT-TYPE
SYNTAX TimeUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the unit of the measurement period."
::= { ippmNetMeasureEntry 6 }
ippmNetMeasureCollectionRate OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Gives the period used to collect singletons from the point of
measures. This value is used as the cycle period in the report."
::= { ippmNetMeasureEntry 7 }
ippmNetMeasureDurationUnit OBJECT-TYPE
SYNTAX TimeUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the measurement duration unit."
::= { ippmNetMeasureEntry 8 }
ippmNetMeasureDuration OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the measurement duration."
::= { ippmNetMeasureEntry 9 }
ippmNetMeasureHistorySize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the maximum number of results saved for each metric of
this measure.
Overflow condition will be managed by the object
ippmNetMeasureResultsMgmt. "
::= { ippmNetMeasureEntry 10 }
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ippmNetMeasureFailureMgmtMode OBJECT-TYPE
SYNTAX INTEGER {
auto(1),
manual(2),
discarded(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object defines whether this row (and the measure controlled
by this row) is restarted automatically, manually, or discarded
upon failure, or reboot of the measurement system.
'auto'
The measure is restarted automatically.
'manual'
The measure has to be restarted manually.
'discarded'
The measure and it results are discarded.
"
::= { ippmNetMeasureEntry 11 }
ippmNetMeasureResultsMgmt OBJECT-TYPE
SYNTAX INTEGER {
wrap(1),
suspend(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"
Action to take when the log is full. The measurement system owner
may choose to either wrap, in which case the agent writes over
existing records. The user may choose to suspend writing to the
log in the event that he wishes to archive the data. The resume
action causes the agent to begin to write in the log, and assumes
the data has been cleared.
This object indicates the way the measurement results are managed
when the owner quota has been exceeded:
'wrap'
continue the measurement and erase the older entries in the
history.
'suspend'
stop the measure and keep the results in the history.
"
::= { ippmNetMeasureEntry 12 }
ippmNetMeasureSrcPacketType OBJECT-TYPE
SYNTAX PacketType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"Defines the type P of the source address of the packets sent by
the measure."
::= { ippmNetMeasureEntry 13 }
ippmNetMeasureSrc OBJECT-TYPE
SYNTAX PacketTypeAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the address of the source of the measure.
It is represented as a list of parameters corresponding to those
of the PROTOCOL IDENTIFIER set in ippmNetMeasureSrcPacketType."
::= { ippmNetMeasureEntry 14}
ippmNetMeasureDstPacketType OBJECT-TYPE
SYNTAX PacketType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Defines the type P of the destination address of the packets
sent by the measure."
::= { ippmNetMeasureEntry 15 }
ippmNetMeasureDst OBJECT-TYPE
SYNTAX PacketTypeAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the address of the destination of the measure.
It is represented as a list of parameters corresponding to those
of the PROTOCOL IDENTIFIER set in ippmNetMeasureDstPacketType."
::= { ippmNetMeasureEntry 16 }
ippmNetMeasureTxMode OBJECT-TYPE
SYNTAX INTEGER {
other(0),
periodic(1),
poisson(2),
multiburst(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The transmit mode used to send the packets:
'other'
The rule used to send the packets is unknown.
'periodic'
Packets are sent periodically at ippmNetMeasureTxPacketRate
rate.
'poisson'
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Packets are sent using a Poisson law, the median is the value
of ippmNetMeasureDevOrIntBurstSize, the deviation is
ippmNetMeasureMedOrBurstSize.
'multiburst'
Packets are sent bursty at ippmNetMeasureTxPacketRate. The
size of the burst is made of ippmNetMeasureMedOrBurstSize
packets.
Between 2 consecutive bursts, transmission stops during the time
needed to send ippmNetMeasureDevOrIntBurstSize.
"
::= { ippmNetMeasureEntry 17 }
ippmNetMeasureTxPacketRateUnit OBJECT-TYPE
SYNTAX TimeUnit
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The packet rate unit used to send the packets."
::= { ippmNetMeasureEntry 18 }
ippmNetMeasureTxPacketRate OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The rate the packets are sent."
::= { ippmNetMeasureEntry 19 }
ippmNetMeasureMedOrBurstSize OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"
Multi-burst mode: This field represents the burst size in number
of packets.
Poisson mode: This field indicates the number of packets sent, on
average, during each period corresponding to the median.
The median is therefore
MedOrBurstSize*TxPacketRateUnit/TxPacketRate.
Example:
If TxPacketRateUnit/TxPacketRate is 100 packets/second, and if
MedOrBurstSize, the number of packets sent during the period
corresponding to the median is 50 packets, then the median equals
50*1/100 = 1/2 seconds.
"
::= { ippmNetMeasureEntry 20 }
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ippmNetMeasureDevOrIntBurstSize OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"
Multi-burst mode: This field indicates the gap between 2 bursts,
in number of packets.
Example:
If TxPacketRateUnit/TxPacketRate is 100 packets/second,
and DevOrIntBurstSize equals 50 packets, then the gap between 2
bursts is
equal to 50*1/100, or 1/2 second.
Poisson mode:
This field indicates the typical difference between the packets
of the period corresponding to the median.
"
::= { ippmNetMeasureEntry 21 }
ippmNetMeasureLossTimeout OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Milliseconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the delay after which the packet is considered lost
by the sink."
::= { ippmNetMeasureEntry 22 }
ippmNetMeasureL3PacketSize OBJECT-TYPE
SYNTAX Unsigned32
UNITS "Bytes"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Specifies the size of the packets counted at the IP network
layer in regards to the PacketType definition.
Example: For a PacketType 'ip ipip4' the L3 size will be the size
of the packet at ipip4 level.
"
::= { ippmNetMeasureEntry 23 }
ippmNetMeasureDataPattern OBJECT-TYPE
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SYNTAX OCTET STRING
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The pattern used to fill the payload of the packet."
::= { ippmNetMeasureEntry 24 }
ippmNetMeasureTotalPktsRecv OBJECT-TYPE
SYNTAX Counter64
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reports the current number of packets received since the
beginning of the measure.
This parameters is useful to monitor the measure and it is needed
to compute statistics."
::= { ippmNetMeasureEntry 25 }
ippmNetMeasureLastUpdate OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the last aggregation was computed."
::= { ippmNetMeasureEntry 26 }
ippmNetMeasureOperState OBJECT-TYPE
SYNTAX INTEGER {
unknown(0),
running(1),
stopped(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reports the operational status of the network measure."
::= { ippmNetMeasureEntry 27 }
--
--
-- ippmAggrMeasure Group
--
--
--
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--
-- ippmAggrMeasureTable
--
--
ippmAggrMeasureTable OBJECT-TYPE
SYNTAX SEQUENCE OF IppmAggrMeasureEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An aggregated measure summarizes the results of previous network
or aggregated measures. The results are saved in the
ippmHistoryTable.
Each step of the calculation for the measure produces a singleton
result per metric."
::= { ippmAggrMeasure 1 }
ippmAggrMeasureEntry OBJECT-TYPE
SYNTAX IppmAggrMeasureEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Typically, the configuration operation creates and sets the
value of the fields of a new ippmAggrMeasureEntry.
ippmAggrMeasureOwner and ippmAggrMeasureIndex identify the
instance created.
The field ippmAggrMeasureMetrics identifies the metric to
compute. As such its ippmMetricsType should be 'aggregated'.
The measure aggregates the results of a measure identified by
ippmAggrMeasureHistoryOwner, ippmAggrMeasureHistoryIndex and
ippmAggrMeasureHistoryMetric. The measure to aggregate belongs to
ippmNetMeasureTable or ippmAggrMeasureTable.
The aggregation starts at ippmAggrMeasureBeginTime and ends after
ippmAggrMeasureDuration.
An aggregated result is computed for each
ippmMeasureCollectionRate tick and saved in the
ippmHistoryTable."
INDEX { ippmAggrMeasureOwner, ippmAggrMeasureIndex }
::= { ippmAggrMeasureTable 1 }
IppmAggrMeasureEntry ::= SEQUENCE {
ippmAggrMeasureOwner IppmOwnerString,
ippmAggrMeasureIndex IppmOwnerIndex,
ippmAggrMeasureName SnmpAdminString,
ippmAggrMeasureMetrics IppmStandardMetrics,
ippmAggrMeasureHistoryOwner IppmOwnerString,
ippmAggrMeasureHistoryIndex IppmOwnerIndex,
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ippmAggrMeasureHistoryMetric IppmMetricsRegistryIndex,
ippmAggrMeasureFilter IppmMetricResultFilter,
ippmAggrMeasureLowThreshold Unsigned32,
ippmAggrMeasureHighThreshold Unsigned32,
ippmAggrMeasureBeginTime GMTTimeStamp,
ippmAggrMeasureAggrPeriodUnit TimeUnit,
ippmAggrMeasureAggrPeriod Unsigned32,
ippmAggrMeasureDurationUnit TimeUnit,
ippmAggrMeasureDuration Unsigned32,
ippmAggrMeasureHistorySize Unsigned32,
ippmAggrMeasureStorageType StorageType,
ippmAggrMeasureAdminState INTEGER,
ippmAggrMeasureFastReport OBJECT IDENTIFIER,
ippmAggrMeasureResultsMgmt INTEGER,
ippmAggrMeasureLastUpdate GMTTimeStamp,
ippmAggrMeasureOperState INTEGER,
ippmAggrMeasureNbPktsTreated Counter64,
ippmAggrMeasureStatus RowStatus
}
ippmAggrMeasureOwner OBJECT-TYPE
SYNTAX IppmOwnerString
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The owner who has configured this entry."
::= { ippmAggrMeasureEntry 1 }
ippmAggrMeasureIndex OBJECT-TYPE
SYNTAX IppmOwnerIndex
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The index of the aggregated measure. The value is managed by the
owner."
::= { ippmAggrMeasureEntry 2 }
ippmAggrMeasureName OBJECT-TYPE
SYNTAX SnmpAdminString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The name of the instance of the metric. It illustrates the
specificity of the metric and includes the metric and the typeP.
example: IP-port-HTTP-connectivity: free text."
::= { ippmAggrMeasureEntry 3 }
ippmAggrMeasureMetrics OBJECT-TYPE
SYNTAX IppmStandardMetrics
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MAX-ACCESS read-create
STATUS current
DESCRIPTION
"ippmAggrMeasureMetrics defines the metrics to compute within
this aggregated measure.
Only aggregated metrics of the same type are allowed in this
field (e.g. Measurement of minimum, average and maximum metrics
are generally processed simultaneously on the same network
measure).
Results are saved in the ippmHistoryTable. Results of a metric
are identified using an index of type IppmMetricsRegistryIndex.
Example:
Given a multi-aggregation of One-way-Delay-Median(9) and One-way-
Delay-Minimum(10). The value of the field ippmAggrMeasureMetrics
is '0000011000000000'b, '0600'B. Results are logged in the
ippmHistoryTable where One-way-Delay-Median singletons have a
value of ippmMetricsIndex of 9 while One-way-Delay-Minimum
singletons have a value of ippmMetricsIndex of 10.
NOTE WELL: It is not recommended to use the multi aggregation
capability in conjunction with the filter feature.
"
::= { ippmAggrMeasureEntry 4 }
ippmAggrMeasureHistoryOwner OBJECT-TYPE
SYNTAX IppmOwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The owner of the measure to summarize. "
::= { ippmAggrMeasureEntry 5 }
ippmAggrMeasureHistoryIndex OBJECT-TYPE
SYNTAX IppmOwnerIndex
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The owner index of the measure to summarize. "
::= { ippmAggrMeasureEntry 6 }
ippmAggrMeasureHistoryMetric OBJECT-TYPE
SYNTAX IppmMetricsRegistryIndex
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The metric of the measure to summarize. "
::= { ippmAggrMeasureEntry 7 }
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ippmAggrMeasureFilter OBJECT-TYPE
SYNTAX IppmMetricResultFilter
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"
ippmAggrMeasureFilter defines the kind of filter to apply on a
result to determine if the result is stored or not. The
parameters of the filter are ippmAggrMeasureLowThreshold and
ippmAggrMeasureHighThreshold.
Thresholds have the same unit as the metric value.
In the following examples we consider an aggregated measure. Its
low threshold is set to 80.its high threshold is set to 100. The
aggregation produced a flow of 12 aggregated results {40 30 60 85
140 130 190 95 50 90 30 20}.
If the filter is set to 'logInBandValue' then the results 85, 95,
90 will be stored.
If the filter is set to 'logOutBandValue' then the results 40 30
60 140 130 190 50 30 20 will be stored.
If the filter is set to 'logAboveValue' then the results 140 130
190 will be stored.
If the filter is set to 'logBelowValue' then the results 40 30 60
50 30 20 will be stored.
If the filter is set to 'logUpAndDownValue' then the results 40,
140, 50 will be stored."
::= { ippmAggrMeasureEntry 8 }
ippmAggrMeasureLowThreshold OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An event is generated when the result of the measure of the
metric is lower that the value of ippmAggrMeasureLowThreshold.
The threshold has the same unit as the metric. The metric unit is
recorded in the object ippmMetricsUnit of this metric entry in
the ippmMetricsTable.
"
::= { ippmAggrMeasureEntry 9 }
ippmAggrMeasureHighThreshold OBJECT-TYPE
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SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"An event is generated when the result of the measure of the
metric exceeds the value of ippmAggrMeasureHighThreshold.
The threshold has the same unit as the metric. The metric unit is
recorded in the object ippmMetricsUnit of this metric entry in
the ippmMetricsTable.
"
::= { ippmAggrMeasureEntry 10 }
ippmAggrMeasureBeginTime OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the time at which the aggregated measure starts."
::= { ippmAggrMeasureEntry 11 }
ippmAggrMeasureAggrPeriodUnit OBJECT-TYPE
SYNTAX TimeUnit
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the unit of the aggregated measure period."
DEFVAL { second }
::= { ippmAggrMeasureEntry 12 }
ippmAggrMeasureAggrPeriod OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the amount of time between 2 measurement action
intervals. The action is specific to the semantic of the measure.
Network metrics:
The ippmNetMeasureClockPattern transforms the flow of periodical
instants as a flow of unpredictable instants of measurement
packet emission.
As the source and the sink share the definition of the clock of
the measure, and as the sending timestamp is part of the
measurement packet, the sink has the information to verify that
the stream of packets generated by the source respects the clock
law.
Aggregated metrics:
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They are performed periodically on a sequence of results of other
measures. The period corresponds to the interval between two
successive computations of the metric. The value of
ippmHistoryTimestamp result of a aggregated metric computed
corresponds to the value of the ippmHistoryTimestamp of the last
metric result of the sequence used to compute the aggregated
metric."
DEFVAL { 60 }
::= { ippmAggrMeasureEntry 13 }
ippmAggrMeasureDurationUnit OBJECT-TYPE
SYNTAX TimeUnit
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the unit of the measure duration."
DEFVAL { second }
::= { ippmAggrMeasureEntry 14 }
ippmAggrMeasureDuration OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the duration of the measure."
DEFVAL { 120 }
::= { ippmAggrMeasureEntry 15 }
ippmAggrMeasureHistorySize OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"Specifies the maximum number of results saved for each metric of
this measure. Overflow condition will be managed by the object
ippmAggrMeasureResultsMgmt. "
DEFVAL { 2 }
::= { ippmAggrMeasureEntry 16 }
ippmAggrMeasureStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object defines whether this row and the measure controlled
by this row are kept in volatile storage and lost upon reboot or
if this row is backed up
by non-volatile or permanent storage.
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Possible values are: other(1), volatile(2), nonVolatile(3),
permanent(4), readOnly(5)."
DEFVAL { nonVolatile }
::= { ippmAggrMeasureEntry 17 }
ippmAggrMeasureResultsMgmt OBJECT-TYPE
SYNTAX INTEGER {
wrap(1),
suspend(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object displays the way the history of the aggregated
measure is managed.
'wrap'
continue the measure and erase the older entries in the
history.
'suspend'
stop the measure and keep the results in the history.
"
DEFVAL { wrap }
::= { ippmAggrMeasureEntry 18 }
ippmAggrMeasureAdminState OBJECT-TYPE
SYNTAX INTEGER {
start(0),
stop(1)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"This object controls the activity of the aggregated measure.
'start'
The aggregated measure is started.
'stop'
The aggregated measure is stopped."
DEFVAL { start }
::= { ippmAggrMeasureEntry 19 }
ippmAggrMeasureFastReport OBJECT-TYPE
SYNTAX OBJECT IDENTIFIER
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"A fast report is required in order to verify quickly that a
measure is running well.
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The feature 'fast report' is active if ippmAggrMeasureFastReport
is not null and points to a notification.
A fast report consists of sending by email to the owner of the
measure, a table of the results of all the metrics computed by
this aggregated measure. The owner email address is read from the
ippmOwnersTable.
ippmAggrMeasureFastReport identifies the notification which
defines the header of the report.
The results part of the report is made of a column of results per
metrics. Results are separated using commas.
To avoid disaster, an aggregated measure using a fast report must
have a cycle of aggregation greater than or equal to 1 second and
should not sent more than an email every 5 minutes and should not
sent more than 12 emails."
DEFVAL { zeroDotZero }
::= { ippmAggrMeasureEntry 20 }
ippmAggrMeasureLastUpdate OBJECT-TYPE
SYNTAX GMTTimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The time when the last aggregated measure was computed."
::= { ippmAggrMeasureEntry 21 }
ippmAggrMeasureOperState OBJECT-TYPE
SYNTAX INTEGER {
unknown(0),
running(1),
stopped(2)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reports the operational status of the aggregated measure."
::= { ippmAggrMeasureEntry 22 }
ippmAggrMeasureNbPktsTreated OBJECT-TYPE
SYNTAX Counter64
UNITS "Packets"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"Reports the current number of packets used to calculate the
aggregation since the start of the measure.
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This parameters is useful to monitor the measure and it is needed
to compute statistics."
::= { ippmAggrMeasureEntry 23 }
ippmAggrMeasureStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this entry. Once the entry status is set to
active, the associate entry cannot be modified.
"
::= { ippmAggrMeasureEntry 24 }
--
-- IPPM Notifications
--
ippmAggrMeasureReport NOTIFICATION-TYPE
OBJECTS {
ippmAggrMeasureFilter,
ippmAggrMeasureLowThreshold,
ippmAggrMeasureHighThreshold,
ippmMetricsType,
ippmMetricsUnit,
ippmMetricsDescription,
ippmHistoryTimestamp,
ippmHistoryValue,
ippmHistoryPathToResults
}
STATUS current
DESCRIPTION
"A notification sent because the value of the measure is under
the high threshold value and greater than the low threshold
value.
The notification contains the instances of the ippmHistoryValue
object that exceeded the threshold.
The notification contains the instances of the
ippmHistoryTimestamp identifying the time the event occurred.
ippmHistoryPathToResults is a link to the file name, which
contains detailed results corresponding to this event."
::= { ippmNotifications 1 }
ippmAggrMeasureHistoryFull NOTIFICATION-TYPE
OBJECTS {
ippmAggrMeasureName,
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ippmAggrMeasureHistorySize,
ippmMetricsType,
ippmMetricsUnit,
ippmMetricsDescription,
ippmHistoryTimestamp,
ippmHistoryValue
}
STATUS current
DESCRIPTION
"A notification sent when the size of the history of a metric of
a aggregated measure exceeds ippmAggrMeasureHistorySize. The
agent will then manage the reports according to the policy
described in ippmAggrMeasureResultsMgmt."
::= { ippmNotifications 2 }
ippmNetMeasureHistoryFull NOTIFICATION-TYPE
OBJECTS {
ippmNetMeasureName,
ippmNetMeasureHistorySize,
ippmMetricsType,
ippmMetricsUnit,
ippmMetricsDescription,
ippmHistoryTimestamp,
ippmHistoryValue
}
STATUS current
DESCRIPTION
"A notification sent when the size of the history of a metric of
a network measure exceeded ippmNetMeasureHistorySize. Then the
agent manages the records according to the policy described in
ippmNetMeasureResultsMgmt."
::= { ippmNotifications 3 }
--
-- IPPM MIB Conformance statements
--
ippmCompliances OBJECT IDENTIFIER ::={ ippmConformance 1 }
ippmGroups OBJECT IDENTIFIER ::={ ippmConformance 2 }
ippmProxyInterDomainCompliances MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities which implement the
IPPM MIB as a proxy in interdomain. The implementation of the
VACM control is mandatory."
MODULE -- this module
MANDATORY-GROUPS {
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ippmSystemGroup, ippmHistoryGroup, ippmNetMeasureGroup,
ippmAggrMeasureGroup, ippmNotificationGroup
}
::= { ippmCompliances 1 }
ippmProxyCompliances MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities which implement the
IPPM MIB as a proxy."
MODULE -- this module
MANDATORY-GROUPS {
ippmSystemGroup, ippmOwnersGroup, ippmHistoryGroup,
ippmNetMeasureGroup, ippmAggrMeasureGroup, ippmNotificationGroup
}
GROUP ippmOwnersGroup
DESCRIPTION
"The ippmOwnersGroup is needed if VACM is not implemented."
::= { ippmCompliances 2 }
ippmEmbeddedCompliances MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The compliance statement for SNMP entities which implement the
IPPM MIB in a probe."
MODULE -- this module
MANDATORY-GROUPS {
ippmSystemGroup, ippmHistoryGroup, ippmNetMeasureGroup
}
::= { ippmCompliances 3 }
ippmSystemGroup OBJECT-GROUP
OBJECTS {
ippmSystemSynchronizationDesc,
ippmSystemTime,
ippmSystemSynchronizationType,
ippmSystemClockResolution,
ippmSynchronizationTime,
ippmSynchronizationStratum,
ippmSynchronizationResolution,
ippmPointOfMeasureMgmtAddrType,
ippmPointOfMeasureMgmtAddress,
ippmPointOfMeasureTestAddrType,
ippmPointOfMeasureTestAddress,
ippmSystemOperationalStatus,
ippmSystemAggregatedMetrics,
ippmPointOfMeasureMetrics,
ippmMetricsType,
ippmMetricsUnit,
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ippmMetricsDescription
}
STATUS current
DESCRIPTION
"The IPPM System Group"
::= { ippmGroups 1}
ippmNetMeasureGroup OBJECT-GROUP
OBJECTS {
ippmNetMeasureName,
ippmNetMeasureMetrics,
ippmNetMeasureBeginTime,
ippmNetMeasureCollectionRateUnit,
ippmNetMeasureCollectionRate,
ippmNetMeasureDurationUnit,
ippmNetMeasureDuration,
ippmNetMeasureHistorySize,
ippmNetMeasureFailureMgmtMode,
ippmNetMeasureResultsMgmt,
ippmNetMeasureSrcPacketType,
ippmNetMeasureSrc,
ippmNetMeasureDstPacketType,
ippmNetMeasureDst,
ippmNetMeasureTxMode,
ippmNetMeasureTxPacketRateUnit,
ippmNetMeasureTxPacketRate,
ippmNetMeasureMedOrBurstSize,
ippmNetMeasureDevOrIntBurstSize,
ippmNetMeasureLossTimeout,
ippmNetMeasureL3PacketSize,
ippmNetMeasureDataPattern,
ippmNetMeasureTotalPktsRecv,
ippmNetMeasureLastUpdate,
ippmNetMeasureOperState
}
STATUS current
DESCRIPTION
"The IPPM Network Measure Group"
::= { ippmGroups 2}
ippmHistoryGroup OBJECT-GROUP
OBJECTS {
ippmHistoryTimestamp,
ippmHistoryValue,
ippmHistoryPathToResults
}
STATUS current
DESCRIPTION
"The IPPM History Group"
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::= { ippmGroups 3}
ippmAggrMeasureGroup OBJECT-GROUP
OBJECTS {
ippmAggrMeasureName,
ippmAggrMeasureMetrics,
ippmAggrMeasureBeginTime,
ippmAggrMeasureAggrPeriodUnit,
ippmAggrMeasureAggrPeriod,
ippmAggrMeasureDurationUnit,
ippmAggrMeasureDuration,
ippmAggrMeasureFilter,
ippmAggrMeasureLowThreshold,
ippmAggrMeasureHighThreshold,
ippmAggrMeasureHistorySize,
ippmAggrMeasureStorageType,
ippmAggrMeasureHistoryOwner,
ippmAggrMeasureHistoryIndex,
ippmAggrMeasureHistoryMetric,
ippmAggrMeasureAdminState,
ippmAggrMeasureFastReport,
ippmAggrMeasureResultsMgmt,
ippmAggrMeasureLastUpdate,
ippmAggrMeasureOperState,
ippmAggrMeasureNbPktsTreated,
ippmAggrMeasureStatus
}
STATUS current
DESCRIPTION
"The IPPM AggregatedMeasure Group"
::= { ippmGroups 4}
ippmOwnersGroup OBJECT-GROUP
OBJECTS {
ippmOwnersGrantedMetrics,
ippmOwnersQuota,
ippmOwnersIpAddressType,
ippmOwnersIpAddress,
ippmOwnersEmail,
ippmOwnersStatus
}
STATUS current
DESCRIPTION
"The IPPM Owners Group"
::= { ippmGroups 5}
ippmNotificationGroup NOTIFICATION-GROUP
NOTIFICATIONS {
ippmAggrMeasureReport,
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ippmNetMeasureHistoryFull,
ippmAggrMeasureHistoryFull
}
STATUS current
DESCRIPTION
"The IPPM Notification Group"
::= { ippmGroups 6}
END
8 Security Considerations
8.1 VACM Access control
View Based Access Control, or VACM may be used to restrict access to
certain objects, or even object instances within tables. For example,
one may:
+ Give an 'administrator' write access to the ippmOwnersTable,
whereas all other users may only have read access
+ Give access to individual rows in the network measure, aggregated
measure, history, and report table to particular owners based upon
indexing on an 'owners name', and even upon a particular measure.
This will be illustrated below.
+ Give access of one ownerÆs measure, and associated results, to
another owner in order to create an aggregated measure based upon the
results.
8.1.1 Example of implementing VACM control for the IPPM-REPORTING-MIB
The following example illustrates how one could use VACM to restrict
access to particular objects within the MIB. It uses syntax specific
to a particular agent development toolkit, but may be generalized
using the concepts as defined in the VACM MIB.
In this example, we have two NMS users, namely user1=owner1 and
user2=owner2:
1) First we define the two users and their host addresses:
com2sec owner1 owner1computer@ private
com2sec owner2 owner2computer@ private
2) We then define SNMPv2c groups
group owner1 v2c owner1
group owner2 v2c owner2
view notif included ippmNotifications ff
3.1) For the user owner1, we now define the views for which he will
have read access
# covers PointOfMeasureTable SynchronizationTable and all scalars
view owner1read included ippmSystem ff
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# covers OwnersTable
view owner1read included ippmOwners ff
# covers MetricsTable
view owner1read included ippmMeasure ff
# covers NetworkMeasureTable
view owner1read included
ippmNetMeasureOwner.6.111.119.110.101.114.49 ff.df.c0
# covers AggrMeasureTable
view owner1read included
ippmAggrMeasureOwner.6.111.119.110.101.114.49 ff.df.c0
3.2) We will now define the views for which owner1 will have write
access
view owner1write included
ippmAggrMeasureOwner.6.111.119.110.101.114.49 ff.df.c0
# covers ReportSetupTable
view owner1read included
ippmReportSetupOwner.6.111.119.110.101.114.49 ff.df.c0
view owner1write included
ippmReportSetupOwner.6.111.119.110.101.114.49 ff.df.c0
# covers HistoryTable
view owner1read included
ippmHistoryMeasureOwner.6.111.119.110.101.114.49 ff.df.c0
# covers ReportTable
view owner1read included
ippmReportSequence.6.111.119.110.101.114.49 ff.df.c0
3.3) For owner2, we will define the views for which he has read
access
view owner2read included ippmSystem ff
view owner2read included ippmOwners ff
view owner2read included ippmMeasure ff
# covers NetworkMeasureTable plus let's say the owner1 network
measure of index X
view owner2read included
ippmNetMeasureOwner.6.111.119.110.101.114.50 ff.df.c0
view owner2read included
ippmNetMeasureOwner.6.111.119.110.101.114.49.X ff.df.e0
# covers AggrMeasureTable plus let's say the OWNER1 aggregated
measure of index Y
view owner2read included
ippmAggrMeasureOwner.6.111.119.110.101.114.50 ff.df.c0
view owner2read included
ippmAggrMeasureOwner.6.111.119.110.101.114.49.Y ff.df.e0
3.4) For owner2, we will define the views for which he has write
access
view owner2write included
ippmAggrMeasureOwner.6.111.119.110.101.114.50 ff.df.c0
# covers ReportSetupTable
view owner2read included
ippmReportSetupOwner.6.111.119.110.101.114.50 ff.df.c0
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view owner2write included
ippmReportSetupOwner.6.111.119.110.101.114.50 ff.df.c0
# covers HistoryTable plus OWNER1 related X network measure results
and OWNER1 related Y aggregated measure results
view owner2read included
ippmHistoryMeasureOwner.6.111.119.110.101.114.50 ff.df.c0
view owner2read included
ippmHistoryMeasureOwner.6.111.119.110.101.114.49.X ff.df.e0
view owner2read included
ippmHistoryMeasureOwner.6.111.119.110.101.114.49.Y ff.df.e0
# covers ReportTable
view owner2read included
ippmReportSequence.6.111.119.110.101.114.50 ff.df.c0
3.5) Now we give the two users access to the views defined above.
Note that owner1 and owner2 have read access to owner1read and
owner2read views respectively. They have write access to owner1write
and owner2write view respectively. And they both have access to all
the notifications.
access owner1 "" any noauth exact owner1read
owner1write notif
access owner2 "" any noauth exact owner2read
owner2write notif
8.2 Privacy
The privacy concerns of network measurement are intrinsically limited
by the active measurements. Unlike passive measurements, there can be
no release of existing user data.
8.3 Measurement aspects
Conducting Internet measurements raises both security and privacy
concerns. This memo does not specify an implementation of the
metrics, so it does not directly affect the security of the Internet
nor of applications that run on the Internet. However,
implementations of these metrics must be mindful of security and
privacy concerns.
There are two types of security concerns: potential harm caused by
the measurements, and potential harm to the measurements. The
measurements could cause harm because they are active, and inject
packets into the network. The measurement parameters MUST be
carefully selected so that the measurements inject trivial amounts of
additional traffic into the networks they measure. If they inject
"too much" traffic, they can skew the results of the measurement, and
in extreme cases cause congestion and denial of service.
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The measurements themselves could be harmed by routers giving
measurement traffic a different priority than "normal" traffic, or by
an attacker injecting artificial measurement traffic. If routers can
recognize measurement traffic and treat it separately, the
measurements will not reflect actual user traffic. If an attacker
injects artificial traffic that is accepted as legitimate, the loss
rate will be artificially lowered. Therefore, the measurement
methodologies SHOULD include appropriate techniques to reduce the
probability measurement traffic can be distinguished from "normal"
traffic.
Authentication techniques, such as digital signatures, may be used
where appropriate to guard against injected traffic attacks.
8.4 Management aspects
There are a number of management objects defined in this MIB that
have a MAX-ACCESS clause of read-write and/or read-only. Such objects
may be considered sensitive or vulnerable in some network
environments. The support for SET operations in a non-secure
environment without proper protection can have a negative effect on
network operations.
SNMPv1 by itself is not a secure environment. Even if the network
itself is secure (for example by using IPSec), even then, there is no
control as to who on the secure network is allowed to access and
GET/SET (read/change/create/delete) the objects in this MIB.
It is recommended that the implementors consider the security
features as provided by the SNMPv3 framework. Specifically, the use
of the User-based Security Model RFC 2574 [18] and the View-based
Access Control Model RFC 2575 [21] is recommended.
It is then a customer/user responsibility to ensure that the SNMP
entity giving access to an instance of this MIB, is properly
configured to give access to the objects only to those principals
(users) that have legitimate rights to indeed GET or SET
(change/create/delete) them.
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9 Document management
9.1 Open issues
Smilint complains when accessible-for-notify is used for an index.
9.2 Changes done since release 04
Report Group deleted:
reportHistoryTable deleted;
reportSetupTable deleted;
6 related notifications deleted;
low and high thresholds added in ippmAggrMeasureTable;
TC IppmOwnerIndex added to clearly define the owner namespace.
GMTTimestamp time origine changed to NTP (1900).
9.3 Changes done since release 03
+ SMI subtype: INTEGER vs Integer32...;
+ SMI UNITS: Clauses added;
+ cleanup of DEFVAL values;
+ Counter/index wrapping:
the index of the table wrap independently of the sequence of the
results. That makes it very difficult for application to track the
results. As the sequence id identify the instance of the result of a
measure the index is removed both from the table and from the index
clause.
ippmHistoryIndex removed from ippmHistoryEntry;
ippmHistoryIndex removed from the INDEX clause of the table
ippmHistoryTable;
ippmReportIndex removed from ippmAggrHistoryEntry;
ippmReportIndex removed from the clause INDEX of
ippmAggrHistoryEntry INDEX clause of the table ippmAggrHistoryTable;
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9.4 Changes done since release 02
+ Security/VACM:
sharing table removed;
ippmMeasure merged with networkMeasure and AggrMeasure to have
all networkMeasure objects in read only.
Indexes belong to the table;
remove all reference to SNMPv1 ...inSNMPTrapPDU
+ System:
ippmSystemOperationalStatus added
ippmSynchronizationTable adapted for proxy mode:
ippmPointOfMeasureIndex added to the index of
ippmSystemCurrentSynchronization removed from system
capabilities:
ippmPointOfMeasureMetrics added to
IppmPointOfMeasureEntry;
ippmMetricsType added to ippmMetricsTable;
+ Owners
ippmMetricMaxHistorySize replaced with quota in ippmOwnersTable;
+ ippmOnHistoryFullAction replaced with resultsMgmt in aggr and network.;
+ network measure:
ippmNetMeasureOperState added to indicate the state of the network
measure
state;
added burst mode;
state of the measure: nb of singletons collected and oper status
added;
+aggregated metric:
fast report added to get raw results by email;
+ report setup:
onReportDeliveryClearHistory removed from
IppmMetricResultFilter;
+ Map field added to network, aggr and report tables to help to map
on topology map or admin view.
10 References
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[1] Bradner, S., "The Internet Standards Process -- Revision 3", BCP
9, RFC 2026, October 1996.
[2] Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
Describing SNMP Management Frameworks", RFC 2571, April 1999.
[3] Rose, M., and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based Internets", STD 16, RFC
1155, May 1990.
[4] Rose, M., and K. McCloghrie, "Concise MIB Definitions", STD 16,
RFC 1212, March 1991.
[5] M. Rose, "A Convention for Defining Traps for use with the SNMP",
RFC 1215, March 1991.
[6] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M., and S. Waldbusser, "Structure of Management Information
Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.
[7] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M., and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
RFC 2579, April 1999.
[8] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
M., and S. Waldbusser, "Conformance Statements for SMIv2", STD 58,
RFC 2580, April 1999.
[9] Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple
Network Management Protocol", STD 15, RFC 1157, May 1990.
[10] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Introduction to Community-based SNMPv2", RFC 1901, January 1996.
[11] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
"Transport Mappings for Version 2 of the Simple Network Management
Protocol (SNMPv2)", RFC 1906, January 1996.
[12]Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC 2572, April 1999.
[13] Blumenthal, U., and B. Wijnen, "User-based Security Model (USM)
for version 3 of the Simple Network Management Protocol (SNMPv3)",
RFC 2574, April 1999.
[14] Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Protocol
Operations for Version 2 of the Simple Network Management Protocol
(SNMPv2)", RFC 1905, January 1996.
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[15] Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC
2573, April 1999.
[16] Wijnen, B., Presuhn, R., and K. McCloghrie, "View-basedAccess
Control Model (VACM) for the Simple Network Management Protocol
(SNMP)", RFC 2575, April 1999.
[17] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction
to Version 3 of the Internet-standard Network Management
Framework", RFC 2570, April 1999.
11 Acknowledgments
A Kerbe.
12 Authors' Addresses
Emile STEPHAN
France Telecom R & D
2 avenue Pierre Marzin
F-22307 Lannion cedex
Phone: (+ 33) 2 96 05 11 11
Email: emile.stephan@francetelecom.com
Jessie Jewitt
France Telecom R & D
801 Gateway Blvd. Suit 500
South San Francisco, CA 94080
Tel: 1 650 875-1524
Email: jessie.jewitt@francetelecom.com
Full Copyright Statement
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This document and translations of it may be copied and furnished to
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or assist its implementation may be prepared, copied, published and
distributed, in whole or in part, without restriction of any kind,
provided that the above copyright notice and this paragraph are
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document itself may not be modified in any way, such as by removing
the copyright notice or references to the Internet Society or other
Internet organizations, except as needed for the purpose of
developing Internet standards in which case the procedures for
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copyrights defined in the Internet Standards process must be
followed, or as required to translate it into languages other than
English.
The limited permissions granted above are perpetual and will not be
revoked by the Internet Society or its successors or assigns.
This document and the information contained herein is provided on an
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HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
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Stephan/Jewitt Expires August 2004 [Page 65]
