Internet Draft Andy Bierman
Cisco Systems, Inc.
11 June 1999
Remote Monitoring MIB Extensions for
Differentiated Services Enabled Networks
<draft-bierman-dsmon-mib-01.txt>
Status of this Memo
This document is an Internet-Draft and is in full conformance with all
provisions of Section 10 of RFC2026 [RFC2026].
Internet-Drafts are working documents of the Internet Engineering Task
Force (IETF), its areas, and its working groups. Note that other groups
may also distribute working documents as Internet-Drafts.
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Distribution of this document is unlimited. Please send comments to the
author, <abierman@cisco.com>.
1. Copyright Notice
Copyright (C) The Internet Society (1999). All Rights Reserved.
Internet-Draft DS-MON MIB June 1999
2. Abstract
This memo defines an experimental portion of the Management Information
Base (MIB) for use with network management protocols in the Internet
community. In particular, it describes managed objects used for
monitoring Differentiated Services Codepoint usage in IP packets,
utilizing the monitoring framework defined in the RMON-2 MIB [RFC2021].
3. Table of Contents
1 Copyright Notice ................................................ 1
2 Abstract ........................................................ 2
3 Table of Contents ............................................... 2
4 The SNMP Network Management Framework ........................... 2
5 Overview ........................................................ 3
5.1 Terms ......................................................... 4
5.2 Relationship to Differentiated Services ....................... 4
5.3 Relationship to the Remote Monitoring MIBs .................... 5
5.4 MIB Structure ................................................. 6
5.4.1 DS Statistics Group ......................................... 7
5.4.2 DS Protocol Distribution Group .............................. 7
5.4.3 DS Host Distribution Group .................................. 8
6 Definitions ..................................................... 9
7 Intellectual Property ........................................... 59
8 Acknowledgements ................................................ 59
9 References ...................................................... 59
10 Security Considerations ........................................ 62
11 Author's Address ............................................... 63
12 Full Copyright Statement ....................................... 63
4. The SNMP Network Management Framework
The SNMP Management Framework presently consists of five major
components:
o An overall architecture, described in RFC 2571 [RFC2571].
o 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
RFC 1155 [RFC1155], RFC 1212 [RFC1212] and RFC 1215 [RFC1215].
The second version, called SMIv2, is described in RFC 2578
[RFC2578], RFC 2579 [RFC2579] and RFC 2580 [RFC2580].
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o Message protocols for transferring management information. The
first version of the SNMP message protocol is called SNMPv1 and
described in RFC 1157 [RFC1157]. A second version of the SNMP
message protocol, which is not an Internet standards track
protocol, is called SNMPv2c and described in RFC 1901 [RFC1901]
and RFC 1906 [RFC1906]. The third version of the message
protocol is called SNMPv3 and described in RFC 1906 [RFC1906],
RFC 2572 [RFC2572] and RFC 2574 [RFC2574].
o Protocol operations for accessing management information. The
first set of protocol operations and associated PDU formats is
described in RFC 1157 [RFC1157]. A second set of protocol
operations and associated PDU formats is described in RFC 1905
[RFC1905].
o A set of fundamental applications described in RFC 2573
[RFC2573] and the view-based access control mechanism described
in RFC 2575 [RFC2575].
A more detailed introduction to the current SNMP Management Framework
can be found in RFC 2570 [RFC2570].
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.
5. Overview
There is a need for a standardized way of monitoring the network traffic
usage of Differentiated Services (DS) [RFC2474] codepoint values. Each
DS codepoint (DSCP) value may be given a different preference by a
forwarding device, and this affects which packets get dropped or delayed
during periods of network congestion.
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The IETF DIFFSERV working group has redefined the semantics of the Type
of Service (TOS) octet in the IP header, which is now called the 'DS
field'. The 6-bit Codepoint (DSCP) portion is contained in the DS field,
which provides for 64 different packet treatments for the implementation
of differentiated network services. The actual packet treatment, or per-
hop behavior (PHB), applied by a forwarding device, is independent of a
particular DSCP value.
By polling DSCP usage counters, an NMS can determine the network
throughput for traffic associated with different DSCPs. This data can
then be analyzed in order to 'tune' DSCP 'allocations' within a network,
based on the Quality of Service (QoS) policies for that network.
5.1. Terms
This document uses some terms that need introduction:
DataSource
A source of data for monitoring purposes. This term is used exactly
as defined in the RMON-2 MIB [RFC2021].
protocol
A specific protocol encapsulation, as identified for monitoring
purposes. This term is used exactly as defined in the RMON
Protocol Identifiers document [RFC2074].
5.2. Relationship to Differentiated Services
The DS-MON MIB focuses only on the DSCP values used in IP packets on a
monitored dataSource. The per-hop behavior (PHB) associated with each
DSCP may be different at each DS-capable forwarding device in the
network.
This MIB does not address the following Differentiated Services issues
in any way:
- configuration and characterization of each PHB in each device
- identification of the mapping between DSCPs and PHBs in each device
- identification of DS capabilities of each forwarding device
- characterization of DSCP values or PHBs, as they relate to standard
or proprietary QoS policy and deployment strategy.
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It is expected that such a MIB (targeted for DS-capable forwarding
devices) will be developed by the DIFFSERV working group to address
these issues.
It is also desirable to keep the monitoring of DSCP usage independent of
the DS forwarding devices, in order to keep probe placement more
flexible, which, in turn, enables better statistics aggregation by the
probe.
This document assumes the reader is somewhat familiar with the DS
Architecture [RFC2475], but the DS-MON MIB addresses only the aspects of
monitoring DSCP usage, and therefore is completely decoupled from the
larger issues of network-wide DS configuration and performance analysis.
It is expected that complex NMS applications will use the counters in
this MIB to help analyze DS-related throughput. It is expected that
other metrics, such as delay and jitter, will also be analyzed, but
support for other metrics is outside the scope of this document.
5.3. Relationship to the Remote Monitoring MIBs
This MIB is intended to be implemented in Remote Monitoring (RMON)
probes, which implement the RMON-2 MIB [RFC2021]. Such probes may be
stand-alone devices, or may not be co-located with other networking
devices (e.g., ethernet switches and repeaters).
The DS-MON probe must be capable of parsing the DS field in IP packets
and correlating the embedded DSCP value with other statistics, as
defined in the DS-MON MIB. The DS-MON functions are intended to be
implemented in conjunction with the associated RMON functions, but the
MIB is independent of all other RMON data tables. For example, an agent
might wish to implement the RMON-2 protocol distribution group and the
DS-MON protocol distribution group, in order to provide the fine
granularity, 'per DSCP' statistics with the DS-MON MIB, and the 'grand
total' statistics with the RMON-2 MIB.
Several concepts and even MIB objects from the RMON MIBs are used in the
DS-MON MIB:
DataSource
This textual convention is used to describe the identification of
an RMON monitoring source (defined in the RMON-2 MIB [RFC2021]).
The DataSource textual convention is used throughout the DS-MON MIB
to identify the monitoring source for each configured collection.
A DataSource MIB object is an OBJECT IDENTIFIER, which contains the
particular instance of the ifIndex object associated with the
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monitored dataSource.
Protocol Directory
The RMON-2 MIB [RFC2021] defines the protocolDirTable, which is a
directory of all the protocols that the RMON-2 agent is capable of
decoding and counting. The DS-MON MIB utilizes this directory to
identify the protocols detected in monitored packets.
TimeFilter
The RMON-2 TimeFilter textual convention provides a mechanism to
retrieve only rows which have been created or modified since the
last polling interval (for a particular NMS). The DS-MON MIB uses
this textual convention in the large data tables, in order to
minimize polling impact.
Zero-Based Counters
Since counters are instantiated by management action, as in the
RMON MIBs, the DS-MON MIB uses zero-based counters in all data
collection tables. Specifically, the ZeroBasedCounter32 textual
convention from the RMON-2 MIB [RFC2021] and the ZeroBasedCounter64
textual convention (defined in the HC-RMON MIB [HC-RMON]) are used
to define counter objects in this MIB.
High Capacity Counters
The DS-MON MIB uses the same 'SNMPv1 coexistence' strategy as the
RMONMIB WG. That is, where a 64-bit counter is provided, a 32-bit
version of the counter, and a 32-bit overflow counter are also
provided.
TopN Reports
The DS-MON MIB uses the same TopN reporting MIB structure as the
RMON-2 MIB [RFC2021]. TopN reporting can greatly reduce the polling
overhead required to analyze DSCP usage patterns.
5.4. MIB Structure
The DS-MON MIB contains three groups of MIB objects:
- dsStatObjects group
Report DSCP distribution statistics for a particular RMON
dataSource.
- dsPdistObjects group
Report DSCP distribution statistics for each protocol detected on a
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particular RMON dataSource.
- dsHostObjects group
Report IP host address distribution statistics for each DSCP,
detected on a particular RMON dataSource.
5.4.1. DS Statistics Group
This group contains two tables, the dsStatsControlTable and the
dsStatsTable, and supports DSCP distribution statistics for half and
full-duplex, low and high speed interfaces. Packet and octets
distributions (by DSCP) are maintained in the dsStatsTable for each
active control row in the dsStatsControlTable.
This group provides the lowest statistics granularity in the DS-MON MIB.
It is expected than NMS applications will analyze certain DS deployment
or performance problems by first examining the DSCP distribution for an
entire interface with this group.
5.4.2. DS Protocol Distribution Group
This group contains two tables for statistics collection,
(dsPdistControlTable and dsPdistStatsTable), and two tables for a 'Top
N' reporting function for the collected statistics
(dsPdistTopNControlTable and dsPdistTopNTable).
The dsPdistControlTable and dsPdistStatsTable tables provide DSCP
distribution statistics for each selected protocol encapsulation in
packets monitored on a particular dataSource. Packet and octets
distributions (per protocol per DSCP) are maintained in the
dsPdistStatsTable for each active control row in the
dsPdistControlTable.
Due the potentially large number of entries, the DS Protocol
Distribution is different from the RMON-2 protocol distribution group in
several ways:
- maximum desired entries parameter added to the control table
- inserts and deletes counters added to the control table
- support for LRU garbage collection in the dsPdistStatsTable
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- TimeFilter index added to the dsPdistStatsTable
- selection of protocols to count by a special 'collect mode'
enumeration. Rather than select individual protocols to monitor, a
simplified configuration mechanism is provided. Since DSCP usage
statistics are most interesting at the network and application
layers, the dsPdistControlCollectMode object selects protocols by
network layer, application layer, or both.
The TopN feature requires two additional tables: the
dsPdistTopNControlTable and the dsPdistTopNTable, and supports periodic
usage reporting for the statistics maintained in the dsPdistStatsTable.
This feature allows for simple periodic retrieval of the most used
protocol/DSCP combinations.
5.4.3. DS Host Distribution Group
This group contains two tables for statistics collection,
(dsHostControlTable and dsHostTable), and two tables for a 'Top N'
reporting function for the collected statistics (dsHostTopNControlTable
and dsHostTopNTable).
The dsHostControlTable and dsHostTables provide IP host distribution
statistics for each DSCP detected in packets monitored on a particular
dataSource.
It is expected than NMS applications will analyze certain DS deployment
or performance problems by first determining the high priority DSCP
values to examine (beyond the scope of this document) and then examining
the dsHostTable statistics to determine which IP hosts are using the
selected DSCP(s).
Packet and octets distributions (in and out, per DSCP per IP host) are
maintained in the dsHostTable for each active control row in the
dsHostControlTable.
The DS Host Distribution is different from the RMON-2 network layer host
group in two ways:
- there is no protocolDirLocalIndex in the dsHostTable INDEX, since
only IPv4 and IPv6 packets contain a DS field, the protocol (IPv4
or IPv6) is determined by the length of each dsHostAddress
instance.
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- the dsHostControlTable supports limited IPv4 subnet aggregation by
allowing the number of 'monitored address bits' in each address to
be configured for each collection. The agent will zero out the
selected number of rightmost IPv4 address bits for counting
purposes. This configuration parameter can dramatically reduce the
number of entries which must be maintained by the agent, which
should reduce CPU and memory resource requirements on the agent,
and reduce polling overhead on the network and the management
station.
The TopN feature requires two additional tables: the
dsHostTopNControlTable and the dsHostTopNTable. and supports periodic
usage reporting for the statistics maintained in the dsHostTable. This
feature allows for simple periodic retrieval of the most used IP-
host/DSCP combinations.
6. Definitions
-- RMON-2 Extensions for the Monitoring of Differentiated Services
-- Enabled Networks
--
-- IP DIFFSERV DSCP statistics
-- * Per DSCP
-- * Per Protocol Per DSCP
-- * Per DSCP Per IP Host Address
--
--
DSMON-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, Integer32,
Counter32, Gauge32, Counter64, experimental
FROM SNMPv2-SMI
MODULE-COMPLIANCE, OBJECT-GROUP
FROM SNMPv2-CONF
RowStatus, TimeStamp, TEXTUAL-CONVENTION
FROM SNMPv2-TC
OwnerString
FROM IF-MIB
protocolDirLocalIndex, LastCreateTime,
DataSource, ZeroBasedCounter32, TimeFilter
FROM RMON2-MIB
ZeroBasedCounter64
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FROM HC-RMON-MIB;
dsMonMIB MODULE-IDENTITY
LAST-UPDATED "9906100000Z"
ORGANIZATION "Cisco Systems, Inc."
CONTACT-INFO
" Andy Bierman
Cisco Systems, Inc.
Postal: 170 West Tasman Drive
San Jose, CA USA 95134
Tel: +1 408 527-3711
E-mail: abierman@cisco.com"
DESCRIPTION
"This module defines Remote Monitoring MIB extensions for
Differentiated Services enabled networks."
::= { experimental 999999 }
dsMonObjects OBJECT IDENTIFIER ::= { dsMonMIB 1 }
dsMonNotifications OBJECT IDENTIFIER ::= { dsMonMIB 2 }
dsMonConformance OBJECT IDENTIFIER ::= { dsMonMIB 3 }
dsStatObjects OBJECT IDENTIFIER ::= { dsMonObjects 1 }
dsPdistObjects OBJECT IDENTIFIER ::= { dsMonObjects 2 }
dsHostObjects OBJECT IDENTIFIER ::= { dsMonObjects 3 }
--
-- Extensions to the RMON-2 MIB for Differentiated Services
-- Monitoring
--
-- In order to maintain the RMON 'look-and-feel', some of
-- the text from the RMON-2 and HC-RMON MIBs by
-- Steve Waldbusser have been used in this MIB.
--
--
-- Textual Convention to define a DSCP for
-- monitoring purposes
--
DSCodePoint ::= TEXTUAL-CONVENTION
STATUS current
DESCRIPTION
"This TC describes an object which identifies the
Differentiated Services Codepoint (DSCP) value in an IPv4 or
IPv6 packet header."
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REFERENCE
"Definition of the Differentiated Services Field (DS Field)
in the IPv4 and IPv6 Headers [RFC2474]."
SYNTAX Integer32 (0..63)
-- ***********************************************************
-- * *
-- * P E R - D A T A S O U C E C O L L E C T I O N S *
-- * *
-- ***********************************************************
--
-- DSCP Per-DataSource Statistics Control Table
--
dsStatsControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsStatsControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Controls the setup of per-data source per-DSCP distribution
statistics."
::= { dsStatObjects 1 }
dsStatsControlEntry OBJECT-TYPE
SYNTAX DsStatsControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsStatsControlTable.
Entries are created and deleted from this table by
management action only, using the dsStatsControlStatus
RowStatus object.
Activation of a control row in this table will cause an
associated dsStatsTable to be created and maintained by the
agent."
INDEX { dsStatsControlIndex }
::= { dsStatsControlTable 1 }
DsStatsControlEntry ::= SEQUENCE {
dsStatsControlIndex Integer32,
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dsStatsControlDataSource DataSource,
dsStatsControlDroppedFrames Counter32,
dsStatsControlCreateTime LastCreateTime,
dsStatsControlOwner OwnerString,
dsStatsControlStatus RowStatus
}
dsStatsControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary and unique index for this
dsStatsControlEntry."
::= { dsStatsControlEntry 1 }
dsStatsControlDataSource OBJECT-TYPE
SYNTAX DataSource
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The source of data for the this per-protocol DSCP
distribution.
The statistics in this group reflect all IPv4 and IPv6
packets on the local network segment attached to the
identified interface.
This object may not be modified if the associated
dsStatsControlStatus object is equal to active(1)."
::= { dsStatsControlEntry 2 }
dsStatsControlDroppedFrames OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of frames which were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
for which the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
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because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped."
::= { dsStatsControlEntry 3 }
dsStatsControlCreateTime OBJECT-TYPE
SYNTAX LastCreateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls."
::= { dsStatsControlEntry 4 }
dsStatsControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { dsStatsControlEntry 5 }
dsStatsControlStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the dsStatsTable shall be deleted."
::= { dsStatsControlEntry 6 }
--
-- DSCP Per-DataSource Statistics Table
--
dsStatsTable OBJECT-TYPE
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SYNTAX SEQUENCE OF DsStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of information on Per Protocol DSCP usage.
The following table defines per-DSCP statistics for full
and/or half-duplex links as well as high capacity links.
For half-duplex links, or full-duplex-capable links
operating in half-duplex mode, the dsStatsIn* objects shall
be used and the dsStatsOut* objects will not increment.
For full-duplex links, the dsOut* objects will be present.
Whenever possible, the probe should count packets moving
away from the closest terminating equipment as output
packets. Failing that, the probe should count packets moving
away from the DTE as output packets."
::= { dsStatObjects 2 }
dsStatsEntry OBJECT-TYPE
SYNTAX DsStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of information on Differentiated Services DSCP
usage, containing inbound and outbound packet and octet
counters for each DSCP configured for collection.
The dsStatsControlIndex value in the index identifies the
dsStatsControlEntry on whose behalf this entry was created.
Only entries with non-zero statistics will be returned by
the agent, in order to reduce the amount of polling required
to retrieve data from this table. That is, an entry will be
created when a packet with the indicated DSCP value is
detected by the agent.
Note that only protocols which are encapsulated in IPv4 or
IPv6 packets will be counted in this table.
An example of the indexing of this entry is
dsStatsOutPkts.1.16"
INDEX { dsStatsControlIndex, dsStatsDsCodept }
::= { dsStatsTable 1 }
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DsStatsEntry ::= SEQUENCE {
dsStatsDsCodept DSCodePoint,
dsStatsInPkts ZeroBasedCounter32,
dsStatsInOctets ZeroBasedCounter32,
dsStatsInOvflPkts ZeroBasedCounter32,
dsStatsInOvflOctets ZeroBasedCounter32,
dsStatsInHCPkts ZeroBasedCounter64,
dsStatsInHCOctets ZeroBasedCounter64,
dsStatsOutPkts ZeroBasedCounter32,
dsStatsOutOctets ZeroBasedCounter32,
dsStatsOutOvflPkts ZeroBasedCounter32,
dsStatsOutOvflOctets ZeroBasedCounter32,
dsStatsOutHCPkts ZeroBasedCounter64,
dsStatsOutHCOctets ZeroBasedCounter64
}
dsStatsDsCodept OBJECT-TYPE
SYNTAX DSCodePoint
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The DSCP value associated with the aggregated statistics
for a particular data source."
::= { dsStatsEntry 1 }
dsStatsInPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets using a particular DSCP value,
received on a half-duplex link or on the inbound connection
of a full-duplex link."
::= { dsStatsEntry 2 }
dsStatsInOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets in packets, using a particular DSCP
value, received on a half-duplex link or on the inbound
connection of a full-duplex link."
::= { dsStatsEntry 3 }
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dsStatsInOvflPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsStatsInPkts counter
has overflowed. Note that this object will only be
instantiated if the associated dsStatsInHCPkts object is
also instantiated for a particular dataSource."
::= { dsStatsEntry 4 }
dsStatsInOvflOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsStatsInOctets counter
has overflowed. Note that this object will only be
instantiated if the associated dsStatsInHCOctets object is
also instantiated for a particular dataSource."
::= { dsStatsEntry 5 }
dsStatsInHCPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsStatsInPkts object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsStatsEntry 6 }
dsStatsInHCOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsStatsInOctets object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsStatsEntry 7 }
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dsStatsOutPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets using a particular DSCP value,
received on a full-duplex link in the direction of the
network."
::= { dsStatsEntry 8 }
dsStatsOutOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets in packets, using a particular DSCP
value, received on a full-duplex link in the direction of
the network."
::= { dsStatsEntry 9 }
dsStatsOutOvflPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsStatsOutPkts counter
has overflowed. Note that this object will only be
instantiated if the associated dsStatsOutHCPkts object is
also instantiated for a particular dataSource."
::= { dsStatsEntry 10 }
dsStatsOutOvflOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsStatsOutOctets counter
has overflowed. Note that this object will only be
instantiated if the associated dsStatsOutHCOctets object is
also instantiated for a particular dataSource."
::= { dsStatsEntry 11 }
dsStatsOutHCPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
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STATUS current
DESCRIPTION
"The 64-bit version of the dsStatsOutPkts object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsStatsEntry 12 }
dsStatsOutHCOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsStatsOutOctets object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsStatsEntry 13 }
-- ***********************************************************
-- * *
-- * P E R - P R O T O C O L C O L L E C T I O N S *
-- * *
-- ***********************************************************
--
-- DSCP Per-Protocol Statistics Control Table
--
dsPdistControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsPdistControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Controls the setup of per-protocol per-DSCP distribution
statistics."
::= { dsPdistObjects 1 }
dsPdistControlEntry OBJECT-TYPE
SYNTAX DsPdistControlEntry
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"A conceptual row in the dsPdistControlTable.
Entries are created and deleted from this table by
management action only, using the dsPdistControlStatus
RowStatus object.
Activation of a control row in this table will cause an
associated dsPdistStatsTable to be created and maintained by
the agent."
INDEX { dsPdistControlIndex }
::= { dsPdistControlTable 1 }
DsPdistControlEntry ::= SEQUENCE {
dsPdistControlIndex Integer32,
dsPdistControlDataSource DataSource,
dsPdistControlMaxDesiredEntries Integer32,
dsPdistControlCollectMode INTEGER,
dsPdistControlDroppedFrames Counter32,
dsPdistControlInserts Counter32,
dsPdistControlDeletes Counter32,
dsPdistControlCreateTime LastCreateTime,
dsPdistControlOwner OwnerString,
dsPdistControlStatus RowStatus
}
dsPdistControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary and unique index for this
dsPdistControlEntry."
::= { dsPdistControlEntry 1 }
dsPdistControlDataSource OBJECT-TYPE
SYNTAX DataSource
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The source of data for the this per-protocol DSCP
distribution.
The statistics in this group reflect all IPv4 and IPv6
packets on the local network segment attached to the
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identified interface.
This object may not be modified if the associated
dsPdistControlStatus object is equal to active(1)."
::= { dsPdistControlEntry 2 }
dsPdistControlMaxDesiredEntries OBJECT-TYPE
SYNTAX Integer32 (-1 | 1..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of entries that are desired in the
dsPdistStatsTable on behalf of this control entry. The probe
will not create more than this number of associated entries
in the table, but may choose to create fewer entries in this
table for any reason including the lack of resources.
If this value is set to -1, the probe may create any number
of entries in this table.
This object may not be modified if the associated
dsPdistControlStatus object is equal to active(1)."
::= { dsPdistControlEntry 3 }
dsPdistControlCollectMode OBJECT-TYPE
SYNTAX INTEGER {
netLayer(1), -- count L3 protocols
appLayer(2), -- count application protocols
netAndAppLayers(3) -- count L3 and app protocols
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The packet layer(s) at which the agent should process DSCP
information, for each monitored packet.
If this object has a value of 'netLayer(1)', then the agent
will include only network layer protocols in the associated
dsPdistStatsTable.
If this object has a value of 'appLayer(2)', then the agent
will include only application layer protocols in the
associated dsPdistStatsTable. Any 'terminal' protocol is
considered to be an application protocol.
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If this object has a value of 'netAndAppLayers(3)', then the
agent will include only network and application layer
protocols in the associated dsPdistStatsTable. Note that
entries for transport layer protocols (e.g., TCP) will not
be created by the agent, even if detected by the agent.
This object may not be modified if the associated
dsPdistControlStatus object is equal to active(1)."
::= { dsPdistControlEntry 4 }
dsPdistControlDroppedFrames OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of frames which were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
for which the probe chose not to count for this entry for
whatever reason. Most often, this event occurs when the
probe is out of some resources and decides to shed load from
this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped."
::= { dsPdistControlEntry 5 }
dsPdistControlInserts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times a dsPdist entry has been inserted into
the dsPdistTable. If an entry is inserted, then deleted,
and then inserted, this counter will be incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal data
structures to differ from those visible via SNMP for short
periods of time. This counter may reflect the internal data
structures for those short periods of time.
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Note that the table size can be determined by subtracting
dsPdistControlDeletes from dsPdistControlInserts."
::= { dsPdistControlEntry 6 }
dsPdistControlDeletes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times a dsPdist entry has been deleted from
the dsPdist table (for any reason). If an entry is deleted,
then inserted, and then deleted, this counter will be
incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal data
structures to differ from those visible via SNMP for short
periods of time. This counter may reflect the internal data
structures for those short periods of time.
Note that the table size can be determined by subtracting
dsPdistControlDeletes from dsPdistControlInserts."
::= { dsPdistControlEntry 7 }
dsPdistControlCreateTime OBJECT-TYPE
SYNTAX LastCreateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls."
::= { dsPdistControlEntry 8 }
dsPdistControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { dsPdistControlEntry 9 }
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dsPdistControlStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this row.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the dsPdistStatsTable shall be deleted."
::= { dsPdistControlEntry 10 }
--
-- Per-Protocol Statistics Table
--
dsPdistStatsTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsPdistStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of information on Per Protocol DSCP usage."
::= { dsPdistObjects 2 }
dsPdistStatsEntry OBJECT-TYPE
SYNTAX DsPdistStatsEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of information on Differentiated Services DSCP
usage, containing packet and octet counters for each DSCP
configured for collection, and each protocol (as identified
by the protocolDirLocalIndex for the protocol) identified in
each monitored packet.
The dsPdistControlIndex value in the index identifies the
dsPdistControlEntry on whose behalf this entry was created.
Only entries with non-zero statistics will be returned by
the agent, in order to reduce the amount of polling required
to retrieve data from this table. That is, an entry will be
created when a packet of that type and DSCP value is
detected by the agent.
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Note that only protocols which are encapsulated in IPv4 or
IPv6 packets will be counted in this table, as indicated by
the protocolDirTable configuration.
An example of the indexing of this entry is
dsPdistStatsPkts.9.29943.42.16."
INDEX { dsPdistControlIndex,
dsPdistTimeMark,
protocolDirLocalIndex,
dsPdistDsCodept }
::= { dsPdistStatsTable 1 }
DsPdistStatsEntry ::= SEQUENCE {
dsPdistTimeMark TimeFilter,
dsPdistDsCodept DSCodePoint,
dsPdistStatsPkts ZeroBasedCounter32,
dsPdistStatsOctets ZeroBasedCounter32,
dsPdistStatsOvflPkts ZeroBasedCounter32,
dsPdistStatsOvflOctets ZeroBasedCounter32,
dsPdistStatsHCPkts ZeroBasedCounter64,
dsPdistStatsHCOctets ZeroBasedCounter64,
dsPdistStatsCreateTime LastCreateTime
}
dsPdistTimeMark OBJECT-TYPE
SYNTAX TimeFilter
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Time Filter index for this table. This object may be
used by a management station to retrieve only rows which
have been created or modified since a particular time. Note
that the current value for a row are always returned and the
TimeFilter is not a historical data archiving mechanism.
Refer to RFC 2021 [RFC2021] for a detailed description of
TimeFilter operation."
::= { dsPdistStatsEntry 1 }
dsPdistDsCodept OBJECT-TYPE
SYNTAX DSCodePoint
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The DSCP value associated with the aggregated statistics
for a particular protocol."
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::= { dsPdistStatsEntry 2 }
dsPdistStatsPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets, monitored by this agent, and
identified to be using a particular DSCP value in the DS
header, on behalf of the protocol identified by the
associated protocolDirLocalIndex value."
::= { dsPdistStatsEntry 3 }
dsPdistStatsOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets in packets, monitored by this agent
and identified to be using a particular DSCP value in the DS
header, on behalf of the protocol identified by the
associated protocolDirLocalIndex value.
Note that this object doesn't count just those octets in the
particular protocol frames, but includes the entire packet
that contained the protocol."
::= { dsPdistStatsEntry 4 }
dsPdistStatsOvflPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsPdistStatsPkts counter
has overflowed. Note that this object will only be
instantiated if the associated dsPdistStatsHCPkts object is
also instantiated for a particular dataSource."
::= { dsPdistStatsEntry 5 }
dsPdistStatsOvflOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsPdistStatsOctets
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counter has overflowed. Note that this object will only be
instantiated if the associated dsPdistStatsHCOctets object
is also instantiated for a particular dataSource."
::= { dsPdistStatsEntry 6 }
dsPdistStatsHCPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsPdistStatsPkts object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsPdistStatsEntry 7 }
dsPdistStatsHCOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsPdistStatsOctets object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsPdistStatsEntry 8 }
dsPdistStatsCreateTime OBJECT-TYPE
SYNTAX LastCreateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this dsPdistStats entry was
last instantiated by the agent. This can be used by the
management station to ensure that the entry has not been
deleted and recreated between polls."
::= { dsPdistStatsEntry 9 }
--
-- Per-Protocol Statistics TopN Control Table
--
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dsPdistTopNControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsPdistTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of parameters that control the creation of a report
of the top N dsPdist entries according to a selected
metric."
::= { dsPdistObjects 3 }
dsPdistTopNControlEntry OBJECT-TYPE
SYNTAX DsPdistTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsPdistTopNControlTable.
Entries are created and deleted from this table by
management action only, using the dsPdistTopNControlStatus
RowStatus object.
Activation of a control row in this table will cause an
associated dsPdistTopNTable to be created and maintained by
the agent."
INDEX { dsPdistTopNControlIndex }
::= { dsPdistTopNControlTable 1 }
DsPdistTopNControlEntry ::= SEQUENCE {
dsPdistTopNControlIndex Integer32,
dsPdistTopNControlPdistIndex Integer32,
dsPdistTopNControlRateBase INTEGER,
dsPdistTopNControlTimeRemaining Integer32,
dsPdistTopNControlGeneratedReports Counter32,
dsPdistTopNControlDuration Integer32,
dsPdistTopNControlRequestedSize Integer32,
dsPdistTopNControlGrantedSize Integer32,
dsPdistTopNControlStartTime TimeStamp,
dsPdistTopNControlOwner OwnerString,
dsPdistTopNControlStatus RowStatus
}
dsPdistTopNControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
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DESCRIPTION
"An index that uniquely identifies an entry in the
dsPdistTopNControlTable. Each such entry defines one Top N
report prepared for one RMON dataSource."
::= { dsPdistTopNControlEntry 1 }
dsPdistTopNControlPdistIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The dsPdistTable for which a top N report will be prepared
on behalf of this entry. The dsPdistTable is identified by
the value of the dsPdistControlIndex for that table - that
value is used here to identify the particular table.
This object may not be modified if the associated
dsPdistTopNControlStatus object is equal to active(1)."
::= { dsPdistTopNControlEntry 2 }
dsPdistTopNControlRateBase OBJECT-TYPE
SYNTAX INTEGER {
dsPdistTopNPkts(1),
dsPdistTopNOctets(2),
dsPdistTopNHCPkts(3),
dsPdistTopNHCOctets(4)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The variable for each dsPdist that the dsPdistTopNRate and
dsPdistTopNHCRate variables are based upon. Each
dsPdistTopN report generated on behalf of this control entry
will be ranked in descending order, based on the associated
dsPdistStatsTable counter, identified by this object.
The following table identifies the dsPdistTable counter
associated with each enumeration:
Enumeration RateBase MIB Object
----------- -------------------
dsPdistTopNPkts dsPdistStatsPkts
dsPdistTopNOctets dsPdistStatsOctets
dsPdistTopNHCPkts dsPdistStatsHCPkts
dsPdistTopNHCOctets dsPdistStatsHCOctets
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Note that the dsPdistTopNHCPkts and dsPdistTopNHCOctets
enumerations are only available if the agent supports High
Capacity RMON collection.
This object may not be modified if the associated
dsPdistTopNControlStatus object is equal to active(1)."
::= { dsPdistTopNControlEntry 3 }
dsPdistTopNControlTimeRemaining OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of seconds left in the report currently being
collected. When this object is modified by the management
station, a new collection is started, possibly aborting a
currently running report. The new value is used as the
requested duration of this report, and is immediately loaded
into the associated dsPdistTopNControlDuration object.
When the report finishes, the probe will automatically start
another collection with the same initial value of
dsPdistTopNControlTimeRemaining. Thus the management
station may simply read the resulting reports repeatedly,
checking the startTime and duration each time to ensure that
a report was not missed or that the report parameters were
not changed.
While the value of this object is non-zero, it decrements by
one per second until it reaches zero. At the time that this
object decrements to zero, the report is made accessible in
the dsPdistTopNTable, overwriting any report that may be
there.
When this object is modified by the management station, any
associated entries in the dsPdistTopNTable shall be
deleted."
DEFVAL { 1800 }
::= { dsPdistTopNControlEntry 4 }
dsPdistTopNControlGeneratedReports OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
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"The number of reports that have been generated by this
entry."
::= { dsPdistTopNControlEntry 5 }
dsPdistTopNControlDuration OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of seconds that this report has collected during
the last sampling interval.
When the associated dsPdistTopNControlTimeRemaining object
is set, this object shall be set by the probe to the same
value and shall not be modified until the next time the
dsPdistTopNControlTimeRemaining is set.
This value shall be zero if no reports have been requested
for this dsPdistTopNControlEntry."
::= { dsPdistTopNControlEntry 6 }
dsPdistTopNControlRequestedSize OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of dsPdist entries requested for this
report.
When this object is created or modified, the probe should
set dsPdistTopNControlGrantedSize as closely to this object
as is possible for the particular probe implementation and
available resources."
DEFVAL { 150 }
::= { dsPdistTopNControlEntry 7 }
dsPdistTopNControlGrantedSize OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of dsPdist entries in this report.
When the associated dsPdistTopNControlRequestedSize object
is created or modified, the probe should set this object as
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closely to the requested value as is possible for the
particular implementation and available resources. The probe
must not lower this value except as a result of a set to the
associated dsPdistTopNControlRequestedSize object.
When the associated dsPdistTopNControlRequestedSize object
is created or modified, the probe should set this object as
closely to the requested value as is possible for the
particular implementation and available resources. The probe
must not lower this value except as a result of a set to the
associated dsPdistTopNControlRequestedSize object.
Protocol entries with the highest value of dsPdistTopNRate
or dsPdistTopNHCRate (depending on the value of the
associated dsPdistTopNControlRateBase object) shall be
placed in this table in decreasing order of this rate until
there is no more room or until there are no more dsPdist
entries."
::= { dsPdistTopNControlEntry 8 }
dsPdistTopNControlStartTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this top N report was last
started. In other words, this is the time that the
associated dsPdistTopNControlTimeRemaining object was
modified to start the requested report or the time the
report was last automatically (re)started.
This object may be used by the management station to
determine if a report was missed or not."
::= { dsPdistTopNControlEntry 9 }
dsPdistTopNControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { dsPdistTopNControlEntry 10 }
dsPdistTopNControlStatus OBJECT-TYPE
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SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this dsPdistTopNControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the dsPdistTopNTable shall be deleted by the
agent."
::= { dsPdistTopNControlEntry 11 }
--
-- dsPdist TopN Table
--
dsPdistTopNTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsPdistTopNEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of statistics for those protocol distribution entries
that have counted the highest number of octets or packets.
Note that dsPdist entries which did not increment at all
during the report interval are not included in dsPdistTopN
reports."
::= { dsPdistObjects 4 }
dsPdistTopNEntry OBJECT-TYPE
SYNTAX DsPdistTopNEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsPdistTopNTable.
The dsPdistTopNControlIndex value in the index identifies
the dsPdistTopNControlEntry on whose behalf this entry was
created."
INDEX { dsPdistTopNControlIndex, dsPdistTopNIndex }
::= { dsPdistTopNTable 1 }
DsPdistTopNEntry ::= SEQUENCE {
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dsPdistTopNIndex Integer32,
dsPdistTopNProtocolDirLocalIndex Integer32,
dsPdistTopNDsCodept DSCodePoint,
dsPdistTopNRate Gauge32,
dsPdistTopNRateOvfl Gauge32,
dsPdistTopNHCRate Counter64 -- Gauge64
}
dsPdistTopNIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index that uniquely identifies an entry in the
dsPdistTopNTable among those in the same report. This index
is between 1 and N, where N is the number of entries in this
report."
::= { dsPdistTopNEntry 1 }
dsPdistTopNProtocolDirLocalIndex OBJECT-TYPE
SYNTAX Integer32 (1..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The protocolDirLocalIndex value which identifies the
protocol associated with this entry."
::= { dsPdistTopNEntry 2 }
dsPdistTopNDsCodept OBJECT-TYPE
SYNTAX DSCodePoint
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The DSCP value associated with protocol identified in this
entry."
::= { dsPdistTopNEntry 3 }
dsPdistTopNRate OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of change in the selected variable during this
sampling interval. The selected variable is this protocol's
instance of the object selected by
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dsPdistTopNControlRateBase.
If the associated dsPdistTopNControlRateBase is equal to
'dsPdistTopNHCPkts' or 'dsPdistTopNHCOctets', then this
object will contain the the least significant 32 bits of the
associated dsPdistTopNHCRate object."
::= { dsPdistTopNEntry 4 }
dsPdistTopNRateOvfl OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The most significant 32 bits of the associated
dsPdistTopNHCRate object.
If the associated dsPdistTopNControlRateBase is equal to
'dsPdistTopNHCPkts' or 'dsPdistTopNHCOctets', then this
object will contain the upper 32 bits of the associated
dsPdistTopNHCRate object.
If the associated dsPdistTopNControlRateBase is equal to
'dsPdistTopNPkts' or 'dsPdistTopNOctets', then this object
will contain the value zero.
The agent may choose not to instantiate this object if High
Capacity RMON collection is not supported."
::= { dsPdistTopNEntry 5 }
dsPdistTopNHCRate OBJECT-TYPE
SYNTAX Counter64 -- Gauge64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of change in the selected variable during this
sampling interval. The selected variable is this protocol's
instance of the object selected by
dsPdistTopNControlRateBase.
If the associated dsPdistTopNControlRateBase is equal to
'dsPdistTopNPkts' or 'dsPdistTopNOctets', then this object
will contain the value zero, and the associated
dsPdistTopNRate object will contain the change in the
selected variable during the sampling interval.
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The agent may choose not to instantiate this object if High
Capacity RMON collection is not supported."
::= { dsPdistTopNEntry 6 }
-- ***********************************************************
-- * *
-- * P E R - H O S T C O L L E C T I O N S *
-- * *
-- ***********************************************************
--
-- IP Host Statistics Control Table
--
dsHostControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsHostControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Controls setup of per DSCP, per IP host distribution
statistics."
::= { dsHostObjects 1 }
dsHostControlEntry OBJECT-TYPE
SYNTAX DsHostControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsHostControlTable.
Entries are created and deleted from this table by
management action only, using the dsHostControlStatus
RowStatus object.
Activation of a control row in this table will cause an
associated dsHostTable to be created and maintained by the
agent."
INDEX { dsHostControlIndex }
::= { dsHostControlTable 1 }
DsHostControlEntry ::= SEQUENCE {
dsHostControlIndex Integer32,
dsHostControlDataSource DataSource,
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dsHostControlMaxDesiredEntries Integer32,
dsHostControlNumAddrBits Integer32,
dsHostControlDroppedFrames Counter32,
dsHostControlInserts Counter32,
dsHostControlDeletes Counter32,
dsHostControlCreateTime LastCreateTime,
dsHostControlOwner OwnerString,
dsHostControlStatus RowStatus
}
dsHostControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An arbitrary and unique index for this dsHostControlEntry."
::= { dsHostControlEntry 1 }
dsHostControlDataSource OBJECT-TYPE
SYNTAX DataSource
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The source of data for the associated dsHostTable.
The statistics in this group reflect all IPv4 and IPv6
packets on the local network segment attached to the
identified interface.
This object may not be modified if the associated
dsHostControlStatus object is equal to active(1)."
::= { dsHostControlEntry 2 }
dsHostControlMaxDesiredEntries OBJECT-TYPE
SYNTAX Integer32 (-1 | 1..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of entries that are desired in the
dsHostTable on behalf of this control entry. The probe will
not create more than this number of associated entries in
the table, but may choose to create fewer entries in this
table for any reason including the lack of resources.
If this value is set to -1, the probe may create any number
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of entries in this table.
This object may not be modified if the associated
dsHostControlStatus object is equal to active(1)."
::= { dsHostControlEntry 3 }
dsHostControlNumAddrBits OBJECT-TYPE
SYNTAX Integer32 (8..32)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The number of 'leftmost' contiguous bits in the IPv4 host
address (as identified by the dsHostAddress object) that
should be maintained in this collection.
If this object has a value less than '32', then 'm'
rightmost bits, where 'm' is equal to '32 -
dsHostControlNumAddrBits', will be cleared to zero for
counting purposes only. The 'leftmost' bit is the most
significant bit of the first network-byte-order octet of the
address.
Note that this object only affects IPv4 host entries in the
associated dsHostTable. IPv6 entries are not affected by
this object.
This object may not be modified if the associated
dsHostControlStatus object is equal to active(1)."
DEFVAL { 32 }
::= { dsHostControlEntry 4 }
dsHostControlDroppedFrames OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The total number of frames which were received by the probe
and therefore not accounted for in the *StatsDropEvents, but
for which the probe chose not to count for the associated
dsHost entries for whatever reason. Most often, this event
occurs when the probe is out of some resources and decides
to shed load from this collection.
This count does not include packets that were not counted
because they had MAC-layer errors.
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Note that if the dsHostTable is inactive because no
appropriate protocols are enabled in the protocol directory,
this value should be 0.
Note that, unlike the dropEvents counter, this number is the
exact number of frames dropped."
::= { dsHostControlEntry 5 }
dsHostControlInserts OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times a dsHost entry has been inserted into
the dsHost table. If an entry is inserted, then deleted,
and then inserted, this counter will be incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal data
structures to differ from those visible via SNMP for short
periods of time. This counter may reflect the internal data
structures for those short periods of time.
Note that the table size can be determined by subtracting
dsHostControlDeletes from dsHostControlInserts."
::= { dsHostControlEntry 6 }
dsHostControlDeletes OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times a dsHost entry has been deleted from
the dsHost table (for any reason). If an entry is deleted,
then inserted, and then deleted, this counter will be
incremented by 2.
To allow for efficient implementation strategies, agents may
delay updating this object for short periods of time. For
example, an implementation strategy may allow internal data
structures to differ from those visible via SNMP for short
periods of time. This counter may reflect the internal data
structures for those short periods of time.
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Note that the table size can be determined by subtracting
dsHostControlDeletes from dsHostControlInserts."
::= { dsHostControlEntry 7 }
dsHostControlCreateTime OBJECT-TYPE
SYNTAX LastCreateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this control entry was last
activated. This can be used by the management station to
ensure that the table has not been deleted and recreated
between polls."
::= { dsHostControlEntry 8 }
dsHostControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { dsHostControlEntry 9 }
dsHostControlStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this dsHostControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the dsHostTable shall be deleted."
::= { dsHostControlEntry 10 }
--
-- IP Host Statistics Table
--
dsHostTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsHostEntry
MAX-ACCESS not-accessible
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STATUS current
DESCRIPTION
"A collection of statistics for a particular IPv4 or IPv6
address that has been discovered on a particular dataSource.
The probe will add to this table all IP addresses seen as
the source or destination address in all packets with no MAC
errors, and will increment octet and packet counts in the
table for all packets with no MAC errors."
::= { dsHostObjects 2 }
dsHostEntry OBJECT-TYPE
SYNTAX DsHostEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A list of information on Differentiated Services DSCP
usage, containing packet and octet counters for each DSCP
configured for collection per host address, as identified in
each monitored packet.
The dsHostControlIndex value in the index identifies the
dsHostControlEntry on whose behalf this entry was created.
The length of the dsHostAddress field identifies the network
layer protocol as either IPv4 or IPv6.
Only entries with non-zero statistics will be returned by
the agent, in order to reduce the amount of polling required
to retrieve data from this table. An entry will be created
when a packet of that type, IP address, and DSCP value is
detected by the agent.
An example of the indexing of this entry is
dsHostOutPkts.1.24873.32.4.171.69.120.0"
INDEX { dsHostControlIndex,
dsHostTimeMark,
dsHostDsCodept,
dsHostAddress }
::= { dsHostTable 1 }
DsHostEntry ::= SEQUENCE {
dsHostTimeMark TimeFilter,
dsHostDsCodept DSCodePoint,
dsHostAddress OCTET STRING,
dsHostInPkts ZeroBasedCounter32,
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dsHostInOctets ZeroBasedCounter32,
dsHostInOvflPkts ZeroBasedCounter32,
dsHostInOvflOctets ZeroBasedCounter32,
dsHostInHCPkts ZeroBasedCounter64,
dsHostInHCOctets ZeroBasedCounter64,
dsHostOutPkts ZeroBasedCounter32,
dsHostOutOctets ZeroBasedCounter32,
dsHostOutOvflPkts ZeroBasedCounter32,
dsHostOutOvflOctets ZeroBasedCounter32,
dsHostOutHCPkts ZeroBasedCounter64,
dsHostOutHCOctets ZeroBasedCounter64,
dsHostCreateTime LastCreateTime
}
dsHostTimeMark OBJECT-TYPE
SYNTAX TimeFilter
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The Time Filter index for this table. This object may be
used by a management station to retrieve only rows which
have been created or modified since a particular time. Note
that the current value for a row are always returned and the
TimeFilter is not a historical data archiving mechanism.
Refer to RFC 2021 [RFC2021] for a detailed description of
TimeFilter operation."
::= { dsHostEntry 1 }
dsHostDsCodept OBJECT-TYPE
SYNTAX DSCodePoint
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The DSCP value associated with the aggregated statistics
for a particular IP host."
::= { dsHostEntry 2 }
dsHostAddress OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4 | 16))
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The network address for this dsHostEntry.
The length of the address string is used to determine if
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this entry represents an IPv4 or IPv6 address. For example,
if the length of this object is '4', then this object is
encoded as an IPv4 address in network byte order.
Note that IPv4 addresses may have some 'rightmost' bits
cleared to zero for counting purposes, as specified by the
associated dsHostControlNumHostBits object."
::= { dsHostEntry 3 }
dsHostInPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets without errors, using the identified
DSCP and transmitted to this address, since it was added to
the dsHostTable. Note that this is the number of link-layer
packets, so if a single network-layer packet is fragmented
into several link-layer frames, this counter is incremented
several times."
::= { dsHostEntry 4 }
dsHostInOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets, transmitted to this address and using
the identified DSCP, since it was added to the dsHostTable
(excluding framing bits but including FCS octets), excluding
those octets in packets that contained errors.
Note this doesn't count just those octets in the particular
protocol frames, but includes the entire packet that
contained the protocol."
::= { dsHostEntry 5 }
dsHostInOvflPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsHostInPkts counter has
overflowed. Note that this object will only be instantiated
if the associated dsHostInHCPkts object is also instantiated
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for a particular dataSource."
::= { dsHostEntry 6 }
dsHostInOvflOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsHostInOctets counter
has overflowed. Note that this object will only be
instantiated if the associated dsHostInHCOctets object is
also instantiated for a particular dataSource."
::= { dsHostEntry 7 }
dsHostInHCPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsHostInPkts object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsHostEntry 8 }
dsHostInHCOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsHostInOctets object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsHostEntry 9 }
dsHostOutPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of packets without errors, using the identified
DSCP and transmitted by this address, since it was added to
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the dsHostTable. Note that this is the number of link-layer
packets, so if a single network-layer packet is fragmented
into several link-layer frames, this counter is incremented
several times."
::= { dsHostEntry 10 }
dsHostOutOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of octets, transmitted by this address and using
the identified DSCP, since it was added to the dsHostTable
(excluding framing bits but including FCS octets), excluding
those octets in packets that contained errors.
Note this doesn't count just those octets in the particular
protocol frames, but includes the entire packet that
contained the protocol."
::= { dsHostEntry 11 }
dsHostOutOvflPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsHostOutPkts counter
has overflowed. Note that this object will only be
instantiated if the associated dsHostOutHCPkts object is
also instantiated for a particular dataSource."
::= { dsHostEntry 12 }
dsHostOutOvflOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of times the associated dsHostOutOctets counter
has overflowed. Note that this object will only be
instantiated if the associated dsHostOutHCOctets object is
also instantiated for a particular dataSource."
::= { dsHostEntry 13 }
dsHostOutHCPkts OBJECT-TYPE
SYNTAX ZeroBasedCounter64
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MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsHostOutPkts object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsHostEntry 14 }
dsHostOutHCOctets OBJECT-TYPE
SYNTAX ZeroBasedCounter64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The 64-bit version of the dsHostOutOctets object.
Note that this object will only be instantiated if the RMON
agent supports High Capacity RMON for a particular
dataSource."
::= { dsHostEntry 15 }
dsHostCreateTime OBJECT-TYPE
SYNTAX LastCreateTime
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this dsHost entry was last
instantiated by the agent. This can be used by the
management station to ensure that the entry has not been
deleted and recreated between polls."
::= { dsHostEntry 16 }
--
-- DSCP Per-Protocol Per-Host Statistics TopN Control Table
--
dsHostTopNControlTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsHostTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of parameters that control the creation of a report
of the top N dsHost entries according to a selected metric."
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::= { dsHostObjects 3 }
dsHostTopNControlEntry OBJECT-TYPE
SYNTAX DsHostTopNControlEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsHostTopNControlTable.
Entries are created and deleted from this table by
management action only, using the dsHostTopNControlStatus
RowStatus object.
Activation of a control row in this table will cause an
associated dsHostTopNTable to be created and maintained by
the agent."
INDEX { dsHostTopNControlIndex }
::= { dsHostTopNControlTable 1 }
DsHostTopNControlEntry ::= SEQUENCE {
dsHostTopNControlIndex Integer32,
dsHostTopNControlHostIndex Integer32,
dsHostTopNControlRateBase INTEGER,
dsHostTopNControlTimeRemaining Integer32,
dsHostTopNControlGeneratedReports Counter32,
dsHostTopNControlDuration Integer32,
dsHostTopNControlRequestedSize Integer32,
dsHostTopNControlGrantedSize Integer32,
dsHostTopNControlStartTime TimeStamp,
dsHostTopNControlOwner OwnerString,
dsHostTopNControlStatus RowStatus
}
dsHostTopNControlIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index that uniquely identifies an entry in the
dsHostTopNControlTable. Each such entry defines one Top N
report prepared for one RMON dataSource."
::= { dsHostTopNControlEntry 1 }
dsHostTopNControlHostIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
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MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The dsHostTable for which a top N report will be prepared
on behalf of this entry. The dsHostTable is identified by
the value of the dsHostControlIndex for that table - that
value is used here to identify the particular table.
This object may not be modified if the associated
dsHostTopNControlStatus object is equal to active(1)."
::= { dsHostTopNControlEntry 2 }
dsHostTopNControlRateBase OBJECT-TYPE
SYNTAX INTEGER {
dsHostTopNInPkts(1),
dsHostTopNInOctets(2),
dsHostTopNOutPkts(3),
dsHostTopNOutOctets(4),
dsHostTopNTotalPkts(5),
dsHostTopNTotalOctets(6),
dsHostTopNInHCPkts(7),
dsHostTopNInHCOctets(8),
dsHostTopNOutHCPkts(9),
dsHostTopNOutHCOctets(10),
dsHostTopNTotalHCPkts(11),
dsHostTopNTotalHCOctets(12)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The variable(s) for each dsHost that the dsHostTopNRate and
dsHostTopNHCRate variables are based upon. Each dsHostTopN
report generated on behalf of this control entry will be
ranked in descending order, based on the associated
dsHostTable counter(s), identified by this object.
The following table identifies the dsHostTable counters
associated with each enumeration:
Enumeration RateBase MIB Objects
----------- --------------------
dsHostTopNInPkts dsHostInPkts
dsHostTopNInOctets dsHostInOctets
dsHostTopNOutPkts dsHostOutPkts
dsHostTopNOutOctets dsHostOutOctets
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dsHostTopNTotalPkts dsHostInPkts +
dsHostOutPkts
dsHostTopNTotalOctets dsHostInOctets +
dsHostOutOctets
dsHostTopNInHCPkts dsHostInHCPkts
dsHostTopNInHCOctets dsHostInHCOctets
dsHostTopNOutHCPkts dsHostOutHCPkts
dsHostTopNOutHCOctets dsHostOutHCPkts
dsHostTopNTotalHCPkts dsHostInHCPkts +
dsHostOutHCPkts
dsHostTopNTotalHCOctets dsHostInHCOctets +
dsHostOutHCOctets
The following enumerations are only available if the agent
supports High Capacity RMON collection:
dsHostTopNInHCPkts
dsHostTopNInHCOctets
dsHostTopNOutHCPkts
dsHostTopNOutHCOctets
dsHostTopNTotalHCPkts
dsHostTopNTotalHCOctets
It is an implementation-specific matter whether an agent can
detect an overflow condition resulting from the addition of
two counter delta values for the following enumerations:
dsHostTopNTotalPkts
dsHostTopNTotalOctets
dsHostTopNTotalHCPkts
dsHostTopNTotalHCOctets
In the event such an overflow condition can be detected by
the agent, the associated dsHostTopNRate,
dsHostTopNRateOvfl, and/or dsHostTopNHCRate objects should
be set to their maximum value.
This object may not be modified if the associated
dsHostTopNControlStatus object is equal to active(1)."
::= { dsHostTopNControlEntry 3 }
dsHostTopNControlTimeRemaining OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-create
STATUS current
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DESCRIPTION
"The number of seconds left in the report currently being
collected. When this object is modified by the management
station, a new collection is started, possibly aborting a
currently running report. The new value is used as the
requested duration of this report, and is immediately loaded
into the associated dsHostTopNControlDuration object.
When the report finishes, the probe will automatically start
another collection with the same initial value of
dsHostTopNControlTimeRemaining. Thus the management station
may simply read the resulting reports repeatedly, checking
the startTime and duration each time to ensure that a report
was not missed or that the report parameters were not
changed.
While the value of this object is non-zero, it decrements by
one per second until it reaches zero. At the time that this
object decrements to zero, the report is made accessible in
the dsHostTopNTable, overwriting any report that may be
there.
When this object is modified by the management station, any
associated entries in the dsHostTopNTable shall be deleted."
DEFVAL { 1800 }
::= { dsHostTopNControlEntry 4 }
dsHostTopNControlGeneratedReports OBJECT-TYPE
SYNTAX Counter32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of reports that have been generated by this
entry."
::= { dsHostTopNControlEntry 5 }
dsHostTopNControlDuration OBJECT-TYPE
SYNTAX Integer32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of seconds that this report has collected during
the last sampling interval.
When the associated dsHostTopNControlTimeRemaining object is
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set, this object shall be set by the probe to the same value
and shall not be modified until the next time the
dsHostTopNControlTimeRemaining is set.
This value shall be zero if no reports have been requested
for this dsHostTopNControlEntry."
::= { dsHostTopNControlEntry 6 }
dsHostTopNControlRequestedSize OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The maximum number of dsHost entries requested for this
report.
When this object is created or modified, the probe should
set dsHostTopNControlGrantedSize as closely to this object
as is possible for the particular probe implementation and
available resources."
DEFVAL { 150 }
::= { dsHostTopNControlEntry 7 }
dsHostTopNControlGrantedSize OBJECT-TYPE
SYNTAX Integer32 (0..2147483647)
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of dsHost entries in this report.
When the associated dsHostTopNControlRequestedSize object is
created or modified, the probe should set this object as
closely to the requested value as is possible for the
particular implementation and available resources. The probe
must not lower this value except as a result of a set to the
associated dsHostTopNControlRequestedSize object.
When the associated dsHostTopNControlRequestedSize object is
created or modified, the probe should set this object as
closely to the requested value as is possible for the
particular implementation and available resources. The probe
must not lower this value except as a result of a set to the
associated dsHostTopNControlRequestedSize object.
Protocol entries with the highest value of dsHostTopNRate or
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dsHostTopNHCRate (depending on the value of the associated
dsHostTopNControlRateBase object) shall be placed in this
table in decreasing order of this rate until there is no
more room or until there are no more dsHost entries."
::= { dsHostTopNControlEntry 8 }
dsHostTopNControlStartTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime when this top N report was last
started. In other words, this is the time that the
associated dsHostTopNControlTimeRemaining object was
modified to start the requested report or the time the
report was last automatically (re)started.
This object may be used by the management station to
determine if a report was missed or not."
::= { dsHostTopNControlEntry 9 }
dsHostTopNControlOwner OBJECT-TYPE
SYNTAX OwnerString
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The entity that configured this entry and is therefore
using the resources assigned to it."
::= { dsHostTopNControlEntry 10 }
dsHostTopNControlStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this dsHostTopNControlEntry.
An entry may not exist in the active state unless all
objects in the entry have an appropriate value.
If this object is not equal to active(1), all associated
entries in the dsHostTopNTable shall be deleted by the
agent."
::= { dsHostTopNControlEntry 11 }
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--
-- dsHost TopN Table
--
dsHostTopNTable OBJECT-TYPE
SYNTAX SEQUENCE OF DsHostTopNEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A set of statistics for those dsHost entries that have
counted the highest number of octets or packets.
Note that dsHost entries which did not increment at all
during the report interval are not included in dsHostTopN
reports."
::= { dsHostObjects 4 }
dsHostTopNEntry OBJECT-TYPE
SYNTAX DsHostTopNEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A conceptual row in the dsHostTopNTable.
The dsHostTopNControlIndex value in the index identifies the
dsHostTopNControlEntry on whose behalf this entry was
created."
INDEX { dsHostTopNControlIndex, dsHostTopNIndex }
::= { dsHostTopNTable 1 }
DsHostTopNEntry ::= SEQUENCE {
dsHostTopNIndex Integer32,
dsHostTopNAddress OCTET STRING,
dsHostTopNDsCodept DSCodePoint,
dsHostTopNRate Gauge32,
dsHostTopNRateOvfl Gauge32,
dsHostTopNHCRate Counter64 -- Gauge64
}
dsHostTopNIndex OBJECT-TYPE
SYNTAX Integer32 (1..65535)
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An index that uniquely identifies an entry in the
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dsHostTopNTable among those in the same report. This index
is between 1 and N, where N is the number of entries in this
report."
::= { dsHostTopNEntry 1 }
dsHostTopNAddress OBJECT-TYPE
SYNTAX OCTET STRING (SIZE (4 | 16))
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The network address of the IP host identified in this
entry. The length of this field identifies the network
layer protocol as either IPv4 or IPv6. Addresses are
encoded in network byte order."
::= { dsHostTopNEntry 2 }
dsHostTopNDsCodept OBJECT-TYPE
SYNTAX DSCodePoint
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The DSCP value associated with host identified in this
entry."
::= { dsHostTopNEntry 3 }
dsHostTopNRate OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of change in the selected variable during this
sampling interval. The selected variable is this host's
instance of the object selected by
dsHostTopNControlRateBase.
If the associated dsHostTopNControlRateBase indicates a High
Capacity RMON enumeration, (e.g. 'dsHostTopNInHCPkts'), then
this object will contain the the least significant 32 bits
of the associated dsHostTopNHCRate object."
::= { dsHostTopNEntry 4 }
dsHostTopNRateOvfl OBJECT-TYPE
SYNTAX Gauge32
MAX-ACCESS read-only
STATUS current
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DESCRIPTION
"The most significant 32 bits of the associated
dsHostTopNHCRate object.
If the associated dsHostTopNControlRateBase is equal to any
of the High Capacity RMON enumerations (e.g.
'dsHostTopNInHCPkts'), then this object will contain the
upper 32 bits of the associated dsHostTopNHCRate object.
If the associated dsHostTopNControlRateBase is not equal to
any of High Capacity RMON enumerations, then this object
will contain the value zero.
The agent may choose not to instantiate this object if High
Capacity RMON collection is not supported."
::= { dsHostTopNEntry 5 }
dsHostTopNHCRate OBJECT-TYPE
SYNTAX Counter64 -- Gauge64
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of change in the selected variable during this
sampling interval. The selected variable is this host's
instance of the object selected by
dsHostTopNControlRateBase.
If the associated dsHostTopNControlRateBase is not equal to
any of the High Capacity RMON enumerations (e.g.,
'dsHostTopNInPkts'), then this object will contain the value
zero, and the associated dsHostTopNRate object will contain
the change in the selected variable during the sampling
interval.
The agent may choose not to instantiate this object if High
Capacity RMON collection is not supported."
::= { dsHostTopNEntry 6 }
--
-- Notifications Section
-- (none defined)
--
--
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-- Conformance Section
--
dsMonCompliances OBJECT IDENTIFIER ::= { dsMonConformance 1 }
dsMonGroups OBJECT IDENTIFIER ::= { dsMonConformance 2 }
dsMonCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"Describes the requirements for conformance to the
Differentiated Services Monitoring MIB."
MODULE -- this module
MANDATORY-GROUPS { dsStatsGroup, dsHostGroup }
GROUP dsStatsHCGroup
DESCRIPTION
"The dsStatsHCGroup is mandatory for systems which implement
the dsStatsGroup and also implement High Capacity RMON
monitoring."
GROUP dsPdistGroup
DESCRIPTION
"The dsPdistGroup is mandatory for systems which implement
DSCP monitoring and the protocolDirTable from the RMON-2 MIB
[RFC2021]."
GROUP dsPdistHCGroup
DESCRIPTION
"The dsPdistHCGroup is mandatory for systems which implement
the dsPdistGroup and also implement High Capacity RMON
monitoring."
GROUP dsHostHCGroup
DESCRIPTION
"The dsHostHCGroup is mandatory for systems which implement
the dsHostGroup and also implement High Capacity RMON
monitoring."
::= { dsMonCompliances 1 }
dsStatsGroup OBJECT-GROUP
OBJECTS {
dsStatsControlDataSource,
dsStatsControlDroppedFrames,
dsStatsControlCreateTime,
dsStatsControlOwner,
dsStatsControlStatus,
dsStatsInPkts,
dsStatsInOctets,
dsStatsOutPkts,
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dsStatsOutOctets
}
STATUS current
DESCRIPTION
"A collection of objects providing per DSCP statistics."
::= { dsMonGroups 1 }
dsStatsHCGroup OBJECT-GROUP
OBJECTS {
dsStatsInOvflPkts,
dsStatsInOvflOctets,
dsStatsInHCPkts,
dsStatsInHCOctets,
dsStatsOutOvflPkts,
dsStatsOutOvflOctets,
dsStatsOutHCPkts,
dsStatsOutHCOctets
}
STATUS current
DESCRIPTION
"A collection of objects providing per DSCP statistics for
high capacity data sources."
::= { dsMonGroups 2 }
dsPdistGroup OBJECT-GROUP
OBJECTS {
dsPdistControlDataSource,
dsPdistControlMaxDesiredEntries,
dsPdistControlCollectMode,
dsPdistControlDroppedFrames,
dsPdistControlInserts,
dsPdistControlDeletes,
dsPdistControlCreateTime,
dsPdistControlOwner,
dsPdistControlStatus,
dsPdistStatsPkts,
dsPdistStatsOctets,
dsPdistStatsCreateTime,
dsPdistTopNControlPdistIndex,
dsPdistTopNControlRateBase,
dsPdistTopNControlTimeRemaining,
dsPdistTopNControlGeneratedReports,
dsPdistTopNControlDuration,
dsPdistTopNControlRequestedSize,
dsPdistTopNControlGrantedSize,
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dsPdistTopNControlStartTime,
dsPdistTopNControlOwner,
dsPdistTopNControlStatus,
dsPdistTopNProtocolDirLocalIndex,
dsPdistTopNDsCodept,
dsPdistTopNRate
}
STATUS current
DESCRIPTION
"A collection of objects providing per protocol DSCP
monitoring extensions to the RMON-2 MIB."
::= { dsMonGroups 3 }
dsPdistHCGroup OBJECT-GROUP
OBJECTS {
dsPdistStatsOvflPkts,
dsPdistStatsOvflOctets,
dsPdistStatsHCPkts,
dsPdistStatsHCOctets,
dsPdistTopNRateOvfl,
dsPdistTopNHCRate
}
STATUS current
DESCRIPTION
"A collection of objects providing per protocol DSCP
monitoring extensions to the RMON-2 MIB for High Capacicy
networks."
::= { dsMonGroups 4 }
dsHostGroup OBJECT-GROUP
OBJECTS {
dsHostControlDataSource,
dsHostControlMaxDesiredEntries,
dsHostControlNumAddrBits,
dsHostControlDroppedFrames,
dsHostControlInserts,
dsHostControlDeletes,
dsHostControlCreateTime,
dsHostControlOwner,
dsHostControlStatus,
dsHostInPkts,
dsHostInOctets,
dsHostOutPkts,
dsHostOutOctets,
dsHostCreateTime,
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dsHostTopNControlHostIndex,
dsHostTopNControlRateBase,
dsHostTopNControlTimeRemaining,
dsHostTopNControlGeneratedReports,
dsHostTopNControlDuration,
dsHostTopNControlRequestedSize,
dsHostTopNControlGrantedSize,
dsHostTopNControlStartTime,
dsHostTopNControlOwner,
dsHostTopNControlStatus,
dsHostTopNAddress,
dsHostTopNDsCodept,
dsHostTopNRate
}
STATUS current
DESCRIPTION
"A collection of objects providing per IP Host DSCP
monitoring functions."
::= { dsMonGroups 5 }
dsHostHCGroup OBJECT-GROUP
OBJECTS {
dsHostInOvflPkts,
dsHostInOvflOctets,
dsHostInHCPkts,
dsHostInHCOctets,
dsHostOutOvflPkts,
dsHostOutOvflOctets,
dsHostOutHCPkts,
dsHostOutHCOctets,
dsHostTopNRateOvfl,
dsHostTopNHCRate
}
STATUS current
DESCRIPTION
"A collection of objects providing per IP Host DSCP
monitoring functions for High Capacity networks."
::= { dsMonGroups 6 }
END
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7. Intellectual Property
The IETF takes no position regarding the validity or scope of any
intellectual property or other rights that might be claimed to pertain
to the implementation or use of the technology described in this
document or the extent to which any license under such rights might or
might not be available; neither does it represent that it has made any
effort to identify any such rights. Information on the IETF's
procedures with respect to rights in standards-track and standards-
related documentation can be found in BCP-11. Copies of claims of
rights made available for publication and any assurances of licenses to
be made available, or the result of an attempt made to obtain a general
license or permission for the use of such proprietary rights by
implementors or users of this specification can be obtained from the
IETF Secretariat."
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary rights
which may cover technology that may be required to practice this
standard. Please address the information to the IETF Executive
Director.
8. Acknowledgements
This memo has been produced with a great deal of assistance from Keith
McCloghrie and Bijendra Jain.
9. References
[HC-RMON]
S. Waldbusser, "Remote Network Monitoring Management Information
Base for High Capacity Networks", draft-ietf-rmonmib-hcrmon-05.txt,
International Network Services, February 1999.
[RFC1155]
Rose, M., and K. McCloghrie, "Structure and Identification of
Management Information for TCP/IP-based Internets", RFC 1155,
Performance Systems International, Hughes LAN Systems, May 1990.
[RFC1157]
Case, J., Fedor, M., Schoffstall, M., and J. Davin, "Simple Network
Management Protocol", RFC 1157, SNMP Research, Performance Systems
International, Performance Systems International, MIT Laboratory
for Computer Science, May 1990.
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[RFC1212]
Rose, M., and K. McCloghrie, "Concise MIB Definitions", RFC 1212,
Performance Systems International, Hughes LAN Systems, March 1991.
[RFC1215]
M. Rose, "A Convention for Defining Traps for use with the SNMP",
RFC 1215, Performance Systems International, March 1991.
[RFC1901]
SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S.
Waldbusser, "Introduction to Community-based SNMPv2", RFC 1901,
SNMP Research, Inc., Cisco Systems, Inc., Dover Beach Consulting,
Inc., International Network Services, January 1996.
[RFC1905]
SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S.
Waldbusser, "Protocol Operations for Version 2 of the Simple
Network Management Protocol (SNMPv2)", RFC 1905, SNMP Research,
Inc., Cisco Systems, Inc., Dover Beach Consulting, Inc.,
International Network Services, January 1996.
[RFC1906]
SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S.
Waldbusser, "Transport Mappings for Version 2 of the Simple Network
Management Protocol (SNMPv2)", RFC 1906, SNMP Research, Inc., Cisco
Systems, Inc., Dover Beach Consulting, Inc., International Network
Services, January 1996.
[RFC2021]
S. Waldbusser, "Remote Network Monitoring MIB (RMON-2)", RFC 2021,
International Network Services, January 1997.
[RFC2026]
Bradner, S., "The Internet Standards Process -- Revision 3", RFC
2026, Harvard University, October, 1996.
[RFC2074]
Bierman, A., and R. Iddon, "Remote Network Monitoring MIB Protocol
Identifiers", RFC 2074, Cisco Systems, AXON Networks, Inc., January
1997.
[RFC2474]
Nichols, K., Blake, S., Baker, F., and D. L. Black, "Definition of
the Differentiated Services Field (DS Field) in the IPv4 and IPv6
Headers", RFC 2474, Cisco Systems, Torrent Networking Technologies,
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EMC Corporation, December, 1998.
[RFC2475]
Blake, S., Black, D., Carlson, M., Davies, E., Wang, Z., and W.
Weiss, "An Architecture for Differentiated Services", RFC 2475,
Torrent Networking Technologies, EMC Corporation, Sun Microsystems,
Nortel UK, Bell Labs Lucent Technologies, Lucent Technologies,
December, 1998.
[RFC2570]
Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction to
Version 3 of the Internet-standard Network Management Framework",
RFC 2570, SNMP Research, Inc., TIS Labs at Network Associates,
Inc., Ericsson, Cisco Systems, April 1999.
[RFC2571]
Harrington, D., Presuhn, R., and B. Wijnen, "An Architecture for
Describing SNMP Management Frameworks", RFC 2571, Cabletron
Systems, Inc., BMC Software, Inc., IBM T. J. Watson Research, April
1999.
[RFC2572]
Case, J., Harrington D., Presuhn R., and B. Wijnen, "Message
Processing and Dispatching for the Simple Network Management
Protocol (SNMP)", RFC 2572, SNMP Research, Inc., Cabletron Systems,
Inc., BMC Software, Inc., IBM T. J. Watson Research, April 1999.
[RFC2573]
Levi, D., Meyer, P., and B. Stewart, "SNMPv3 Applications", RFC
2573, SNMP Research, Inc., Secure Computing Corporation, Cisco
Systems, April 1999.
[RFC2574]
Blumenthal, U., and B. Wijnen, "User-based Security Model (USM) for
version 3 of the Simple Network Management Protocol (SNMPv3)", RFC
2574, IBM T. J. Watson Research, April 1999.
[RFC2575]
Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based Access
Control Model (VACM) for the Simple Network Management Protocol
(SNMP)", RFC 2575, IBM T. J. Watson Research, BMC Software, Inc.,
Cisco Systems, Inc., April 1999.
[RFC2578]
McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.,
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and S. Waldbusser, "Structure of Management Information Version 2
(SMIv2)", RFC 2578, STD 58, Cisco Systems, SNMPinfo, TU
Braunschweig, SNMP Research, First Virtual Holdings, International
Network Services, April 1999.
[RFC2579]
McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.,
and S. Waldbusser, "Textual Conventions for SMIv2", RFC 2579, STD
58, Cisco Systems, SNMPinfo, TU Braunschweig, SNMP Research, First
Virtual Holdings, International Network Services, April 1999.
[RFC2580]
McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose, M.,
and S. Waldbusser, "Conformance Statements for SMIv2", RFC 2580,
STD 58, Cisco Systems, SNMPinfo, TU Braunschweig, SNMP Research,
First Virtual Holdings, International Network Services, April 1999.
10. Security Considerations
There are a number of management objects defined in this MIB that have a
MAX-ACCESS clause of read-write and/or read-create. 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.
There are a number of managed objects in this MIB that may contain
sensitive information. These are:
dsPdistStatsPkts
dsPdistStatsOctets
dsPdistStatsHCPkts
dsPdistStatsHCOctets
These objects expose some basic statistics about the DCSP distribution
for each protocol detected on a particular network interface.
dsHostInPkts
dsHostInOctets
dsHostInHCPkts
dsHostInHCOctets
dsHostOutPkts
dsHostOutOctets
dsHostOutHCPkts
dsHostOutHCOctets
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These objects expose some basic statistics about the DCSP distribution
for each IP host detected on a particular network interface.
It is thus important to control even GET access to these objects and
possibly to even encrypt the values of these object when sending them
over the network via SNMP. Not all versions of SNMP provide features
for such a secure environment.
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 implementers consider the security features
as provided by the SNMPv3 framework. Specifically, the use of the User-
based Security Model RFC 2574 [RFC2574] and the View-based Access
Control Model RFC 2575 [RFC2575] 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.
11. Author's Address
Andy Bierman
Cisco Systems, Inc.
170 West Tasman Drive
San Jose, CA USA 95134
Phone: +1 408-527-3711
Email: abierman@cisco.com
12. Full Copyright Statement
Copyright (C) The Internet Society (1999). All Rights Reserved.
This document and translations of it may be copied and furnished to
others, and derivative works that comment on or otherwise explain it or
assist in 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 included
on all such copies and derivative works. However, this 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
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which case the procedures for 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 "AS
IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING TASK
FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT
LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION HEREIN WILL NOT
INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR
FITNESS FOR A PARTICULAR PURPOSE."
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