Internet Draft A S Kiran Koushik
Expires: May 2009 Cisco Systems, Inc.
E. Stephan
France Telecom
PCE communication protocol(PCEP) Management Information Base
draft-kkoushik-pce-pcep-mib-02.txt
Status of This Memo
By submitting this Internet-Draft, each author represents that any
applicable patent or other IPR claims of which he or she is aware
have been or will be disclosed, and any of which he or she becomes
aware will be disclosed, in accordance with Section 6 of BCP 79.
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.
Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at
http://www.ietf.org/1id-abstracts.html
The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html
Copyright Notice
Copyright (C) The IETF Trust (2008).
Abstract
This memo defines an experimental portion of the Management
Information Base for use with network management protocols in the
Internet community. In particular, it describes managed objects
for modeling of Path Computation Element communication
Protocol (PCEP) for communications between a Path Computation Client
(PCC) and a Path Computation Element (PCE), or between two PCEs.
PCE Working Group Expires May 2008 [Page 1]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
Table of Contents
Abstract............................................................1
1 Introduction...................................................2
2 Terminology....................................................2
3 The Internet-Standard Management Framework.....................3
4 PCEP MIB modules Architecture..................................3
4.1 Relations to other MIB modules.................................3
5 Example of the PCEP MIB modules usage .........................3
6 Object definitions.............................................4
6.1 PCE-PCEP-DRAFT-MIB.............................................4
7 Security considerations.......................................20
8 IANA Considerations...........................................20
9 References....................................................20
9.1 Normative References..........................................20
9.2 Informative References........................................20
10 Acknowledgement ..............................................21
11 Author's Addresses............................................21
1 Introduction
This memo defines a portion of the Management Information Base
(MIB) for use with network management protocols in the Internet
community. In particular, it defines a MIB module that can be
used to manage Path Computation Element communication
Protocol (PCEP) for communications between a Path Computation Client
(PCC) and a Path Computation Element (PCE), or between two PCEs.
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
[RFC2119].
Conventions used in this document
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL
NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and
"OPTIONAL" in this document are to be interpreted as described in
RFC-2119 [BCP14].
2 Terminology
The terminology used in this document is built on notions introduced
and discussed in PCE WG documents. The reader should be familiar
with these documents
Domain:
any collection of network elements within a common sphere of
address management or path computational responsibility.
PCE Working Group Expires May 2008 [Page 2]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
IGP Area:
OSPF Area or ISIS level.
PCC:
Path Computation Client: any client application requesting a path
computation to be performed by a Path Computation Element.
PCE:
Path Computation Element: an entity (component, application, or
network node) that is capable of computing a network path or route
based on a network graph, and applying computational
constraints.
PCEP Client:
A PCEP client represents a PCE or a PCC for network management
purposes.
3 The Internet-Standard Management Framework
For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7
of RFC 3410 [RFC3410].
Managed objects are accessed via a virtual information store,
termed the Management Information Base or MIB. MIB objects are
generally accessed through the Simple Network Management Protocol
(SNMP). Objects in the MIB are defined using the mechanisms
defined in the Structure of Management Information (SMI). This
memo specifies a MIB module that is compliant to the SMIv2, which
is described in STD 58,RFC 2578 [RFC2578], STD 58, RFC 2579
[RFC2579] and STD 58, RFC 2580 [RFC2580].
4. PCEP MIB Module Architecture
The PCEP MIB will contain the following information:
a. PCEP client configuration and status.
b. PCEP peer configuration and information.
c. PCEP session configuration and information.
d. Notifications to indicate PCEP session changes.
4.1. Relations to other MIB modules
TBD
5 Example of the PCEP MIB module usage
PCE Working Group Expires May 2008 [Page 3]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
TBD
6 Object definitions
6.1 PCE-PCEP-DRAFT-MIB
This MIB module makes references to the following documents.
[RFC2578], [RFC2579], [RFC2580], [RFC3411],
[RFC2863], [RFC4001], [RFC4265] and [RFC3813].
PCE-PCEP-DRAFT-MIB DEFINITIONS ::= BEGIN
IMPORTS
MODULE-IDENTITY, OBJECT-TYPE, NOTIFICATION-TYPE,
Counter32, Unsigned32, Gauge32, Integer32, IpAddress,
experimental
FROM SNMPv2-SMI
RowStatus, TimeInterval, TruthValue,
TimeStamp, StorageType,TEXTUAL-CONVENTION
FROM SNMPv2-TC -- [RFC2579]
InetAddressPrefixLength,
InetAddressType,
InetAddress,
InetPortNumber
FROM INET-ADDRESS-MIB
MODULE-COMPLIANCE,
OBJECT-GROUP,
NOTIFICATION-GROUP
FROM SNMPv2-CONF;
pcePcepDraftMIB MODULE-IDENTITY
LAST-UPDATED "200811030000Z" --Nov 3, 2008
ORGANIZATION "Path Computation Element (PCE) Working Group"
CONTACT-INFO "
A S Kiran Koushik
Cisco Systems Inc.
Stephan Emile
France Telecom DR&D
Email: kkoushik@cisco.com
Email: emile.stephan@orange-ft.com
Email comments directly to the PCE WG Mailing List at pce@ietf.org
WG-URL: http://www.ietf.org/html.charters/pce-charter.html
"
DESCRIPTION
PCE Working Group Expires May 2008 [Page 4]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
"This MIB module defines a collection of objects for managing
PCE communication protocol(PCEP)."
-- Revision history
REVISION
"200811031200Z" -- Nov 03 2008 12:00:00 EST
DESCRIPTION
"Changes from -01- draft include support for the following
in the MIB :
o The SyncTimer,
o The maximum number of sessions that can be setup,
o Request timer: amount of time a PCC waits for a reply
before resending its path computation requests
(potentially to an alternate PCE).
o The MAX-UNKNOWN-REQUESTS
o The MAX-UNKNOWN-MESSAGES
o Response time (minimum, average and maximum), on a
per PCE Peer basis,
o PCEP Session failures,
o Amount of time the session has been in active state,
o Number of corrupted messages,
o Number of failed computations,
Changes from -00- draft :
1. Clarified the notion of PCEP Client.
2. Added new objects to the PCEP client and session tables
to manage PCEP protocol as in section 8 of
draft-ietf-pce-pcep-08.txt
3. Did not add all the objects to manage the recommendations
in draft-ietf-pce-pcep-08.txt to control the complexity of
the MIB."
REVISION
"200702201200Z" -- 20 Feb 2007 12:00:00 EST
DESCRIPTION
"draft-00 version"
::= { experimental 9999 } --
-- Textual Conventions used in this MIB module --
PcePcepIdentifier ::= TEXTUAL-CONVENTION
DISPLAY-HINT "1d.1d.1d.1d:1d:1d"
STATUS current
DESCRIPTION
"The LDP identifier is a six octet
quantity which is used to identify a
PCE client."
PCE Working Group Expires May 2008 [Page 5]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
SYNTAX OCTET STRING (SIZE (6))
-- Notifications --
pcePcepNotifications OBJECT IDENTIFIER ::= { pcePcepDraftMIB 0 }
pcePcepMIBObjects OBJECT IDENTIFIER ::= { pcePcepDraftMIB 1 }
pcePcepConformance OBJECT IDENTIFIER ::= { pcePcepDraftMIB 2 }
pcePcepClientObjects OBJECT IDENTIFIER ::= { pcePcepMIBObjects 1 }
--
-- PCE Client Objects
--
pcePcepClientLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time of the most
recent addition or deletion of an entry
to/from the pcePcepClientTable/pcePcepClientStatsTable, or
the most recent change in value of any objects in the
pcePcepClientTable.
If no such changes have occurred since the last
re-initialization of the local management subsystem,
then this object contains a zero value."
::= { pcePcepClientObjects 1 }
pcePcepClientIndexNext OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"This object contains an appropriate value to
be used for pcePcepClientIndex when creating
entries in the pcePcepClientTable. The value
0 indicates that no unassigned entries are
available."
::= { pcePcepClientObjects 2 }
pcePcepClientTable OBJECT-TYPE
SYNTAX SEQUENCE OF PcePcepClientEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
PCE Working Group Expires May 2008 [Page 6]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
"This table contains information about the
PCEP Client."
::= { pcePcepClientObjects 3 }
pcePcepClientEntry OBJECT-TYPE
SYNTAX PcePcepClientEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents a PCEP client.
An entry can be created by a network administrator
or by an SNMP agent as instructed by PCEP."
INDEX { pcePcepClientPcepId, pcePcepClientIndex }
::= { pcePcepClientTable 1 }
PcePcepClientEntry ::= SEQUENCE {
pcePcepClientPcepId PcePcepIdentifier,
pcePcepClientIndex Unsigned32,
pcePcepClientAdminStatus INTEGER,
pcePcepClientOperStatus INTEGER,
pcePcepClientTcpPort InetPortNumber,
pcePcepClientKeepAliveTimer Unsigned32,
pcePcepClientStorageType StorageType,
pcePcepClientRowStatus RowStatus,
pcePcepClientDeadTimer Unsigned32
}
pcePcepClientPcepId OBJECT-TYPE
SYNTAX PcePcepIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The PCEP client identifier."
::= { pcePcepClientEntry 1 }
pcePcepClientIndex OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"This index is used to uniquely identify the PCEP client.
Before creating a row in this table,
the 'pcePcepClientIndexNext' object should be retrieved.
That value should be used for the value of this index
when creating a row in this table. NOTE: if a value
of zero (0) is retrieved, that indicates that no rows
can be created in this table at this time."
PCE Working Group Expires May 2008 [Page 7]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
::= { pcePcepClientEntry 2 }
pcePcepClientAdminStatus OBJECT-TYPE
SYNTAX INTEGER {
enable(1),
disable(2)
}
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The administrative status of this PCEP Client.
If this object is changed from 'enable' to 'disable'
and this entity has already attempted to establish
contact with a Peer, then all contact with that
Peer is lost and all information from that Peer
needs to be removed from the MIB. (This implies
that the network management subsystem should clean
up any related entry in the pcePcepPeerTable. This
further implies that a 'tear-down' for that session
is issued and the session and all information related
to that session cease to exist).
At this point the operator is able to change values
which are related to this entity.
When the admin status is set back to 'enable', then
this Entity will attempt to establish a new session
with the Peer."
DEFVAL { enable }
::= { pcePcepClientEntry 4 }
pcePcepClientOperStatus OBJECT-TYPE
SYNTAX INTEGER {
unknown(1),
enabled(2),
disabled(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The operational status of this PCEP client.
The value of unknown(1) indicates that the
operational status cannot be determined at
this time. The value of unknown should be
a transient condition before changing
to enabled(2) or disabled(3)."
PCE Working Group Expires May 2008 [Page 8]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
::= { pcePcepClientEntry 5 }
pcePcepClientTcpPort OBJECT-TYPE
SYNTAX InetPortNumber
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The TCP Port for
PCEP. The default value is the well-known
value of this port." -- To be assigned by IANA
::= { pcePcepClientEntry 6 }
pcePcepClientKeepAliveTimer OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The integer value which is the proposed keep
alive timer for this PCEP client."
::= { pcePcepClientEntry 7 }
pcePcepClientStorageType OBJECT-TYPE
SYNTAX StorageType
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The storage type for this conceptual row.
Conceptual rows having the value 'permanent(4)'
need not allow write-access to any columnar
objects in the row."
DEFVAL{ nonVolatile }
::= { pcePcepClientEntry 8 }
pcePcepClientRowStatus OBJECT-TYPE
SYNTAX RowStatus
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The status of this conceptual row. All writable
objects in this row may be modified at any
time, however, as described in detail in
the section entitled, 'Changing Values After
Session Establishment', and again described
in the DESCRIPTION clause of the
pcePcepClientAdminStatus object, if a session
has been initiated with a Peer, changing objects
PCE Working Group Expires May 2008 [Page 9]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
in this table will wreak havoc with the session
and interrupt traffic. To repeat again:
the recommended procedure is to
set the pcePcepClientAdminStatus to down, thereby
explicitly causing a session to be torn down. Then,
change objects in this entry, then set
the pcePcepClientAdminStatus to enable,
which enables a new session to be initiated."
::= { pcePcepClientEntry 9 }
pcePcepClientDeadTimer OBJECT-TYPE
SYNTAX Unsigned32 (4..262140)
UNITS "seconds"
MAX-ACCESS read-create
STATUS current
DESCRIPTION
"The value which indicates a period of
time after the expiration of which a PCEP peer
declares the session down if no PCEP message
has been received. The Deadtimer value is recommended to
be 4 times the Keepalive value."
::= { pcePcepClientEntry 10 }
--
-- The PCEP Client Statistics Table
-- TBD
--
--
-- The PCEP Peer Table
--
pcePcepSessionObjects OBJECT IDENTIFIER ::= { pcePcepMIBObjects 3 }
pcePcepPeerLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time of the most
recent addition or deletion to/from the
pcePcepPeerTable/pcePcepSessionTable."
::= { pcePcepSessionObjects 1 }
pcePcepPeerTable OBJECT-TYPE
SYNTAX SEQUENCE OF PcePcepPeerEntry
MAX-ACCESS not-accessible
STATUS current
PCE Working Group Expires May 2008 [Page 10]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
DESCRIPTION
"Information about PCEP peers known by Entities in
the pcePcepClientTable. The information in this table
is based on information from the Client-Peer interaction
during session initialization but is not appropriate
for the pcePcepSessionTable, because objects in this
table may or may not be used in session establishment."
::= { pcePcepSessionObjects 2 }
pcePcepPeerEntry OBJECT-TYPE
SYNTAX PcePcepPeerEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"Information about a single Peer which is related
to a Session. This table is augmented by
the pcePcepSessionTable."
INDEX { pcePcepClientPcepId,
pcePcepClientIndex,
pcePcepPeerPcepId }
::= { pcePcepPeerTable 1 }
PcePcepPeerEntry ::= SEQUENCE {
pcePcepPeerPcepId PcePcepIdentifier,
pcePcepPeerTransportAddrType InetAddressType,
pcePcepPeerTransportAddr InetAddress
}
pcePcepPeerPcepId OBJECT-TYPE
SYNTAX PcePcepIdentifier
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"The PCEP identifier of this PCE Peer."
::= { pcePcepPeerEntry 1 }
pcePcepPeerTransportAddrType OBJECT-TYPE
SYNTAX InetAddressType
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The type of the Internet address for the
pcePcepPeerTransportAddr object. The PCEP
specification describes this as being either
an IPv4 Transport Address or IPv6 Transport
This object specifies how the value of the
pcePcepPeerTransportAddr object should be
PCE Working Group Expires May 2008 [Page 11]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
interpreted."
::= { pcePcepPeerEntry 2 }
pcePcepPeerTransportAddr OBJECT-TYPE
SYNTAX InetAddress
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Internet address advertised by the peer.
The type of this address is specified by the
value of the pcePcepPeerTransportAddrType
object."
::= { pcePcepPeerEntry 3 }
pcePcepPeerResponseTime OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The Average response time for this PCEP peer."
::= { pcePcepPeerEntry 4 }
--
-- The PCEP Sessions Table
--
pcePcepSessionMax OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of sessions that can be setup
on this PCEP client."
::= { pcePcepSessionObjects 3 }
pcePcepSessionMaxUnknownRequests OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of unknown requests that any session
on this PCEP client is willing to accept."
::= { pcePcepSessionObjects 4 }
pcePcepSessionMaxUnknownMsgs OBJECT-TYPE
PCE Working Group Expires May 2008 [Page 12]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum number of unknown messages that any session
on this PCEP client is willing to accept."
::= { pcePcepSessionObjects 5 }
pcePcepSessionFailures OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of failed sessions on this client."
::= { pcePcepSessionObjects 6 }
pcePcepSessionTable OBJECT-TYPE
SYNTAX SEQUENCE OF PcePcepSessionEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"A table of Sessions between PCEP clients.
This table AUGMENTS the pcePcepPeerTable.
Each row in this table represents a single session."
::= { pcePcepSessionObjects 7 }
pcePcepSessionEntry OBJECT-TYPE
SYNTAX PcePcepSessionEntry
MAX-ACCESS not-accessible
STATUS current
DESCRIPTION
"An entry in this table represents information on a
single session between two PCEP clients.
The information contained in a row is read-only."
AUGMENTS { pcePcepPeerEntry }
::= { pcePcepSessionTable 1 }
PcePcepSessionEntry ::= SEQUENCE {
pcePcepSessionStateLastChange TimeStamp,
pcePcepSessionState INTEGER,
pcePcepSessionKeepAliveHoldTimeRem TimeInterval,
pcePcepSessionKeepAliveTime Unsigned32,
pcePcepSessionDiscontinuityTime TimeStamp,
pcePcepSessionSpeakerRole INTEGER,
pcePcepSessionSyncTime Unsigned32,
pcePcepSessionActiveTime Unsigned32,
pcePcepSessionCorruptedMsgs Unsigned32,
PCE Working Group Expires May 2008 [Page 13]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
pcePcepSessionFailedComps Unsigned32
}
pcePcepSessionStateLastChange OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime at the time this
Session entered its current state as
denoted by the pcePcepSessionState
object."
::= { pcePcepSessionEntry 1 }
pcePcepSessionState OBJECT-TYPE
SYNTAX INTEGER {
sessionUp(1),
keepWait(2),
openWait(3),
tcpPending(4),
idle(5)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The current state of the session, all of the
states 1 to 5 are based on the state machine
for session negotiation behavior."
::= { pcePcepSessionEntry 2 }
pcePcepSessionKeepAliveHoldTimeRem OBJECT-TYPE
SYNTAX TimeInterval
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The keep alive hold time remaining for
this session."
::= { pcePcepSessionEntry 3 }
pcePcepSessionKeepAliveTime OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The negotiated KeepAlive Time which
represents the amount of seconds between
keep alive messages. The
PCE Working Group Expires May 2008 [Page 14]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
pcePcepClientKeepAliveHoldTimer
related to this Session is the
value that was proposed as the
KeepAlive Time for this session
This value is negotiated during
session initialization between
the entity's proposed value
(i.e., the value configured in
pcePcepClientKeepAliveHoldTimer)
and the peer's proposed
KeepAlive Hold Timer value.
This value is the smaller
of the two proposed values."
::= { pcePcepSessionEntry 4 }
pcePcepSessionDiscontinuityTime OBJECT-TYPE
SYNTAX TimeStamp
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of sysUpTime on the most recent occasion
at which any one or more of this session's counters
suffered a discontinuity. The relevant counters are
the specific instances associated with this session
of any Counter32 object contained in the
pcePcepSessionStatsTable.
The initial value of this object is the value of
sysUpTime when the entry was created in this table.
Also, a command generator can distinguish when a session
between a given Entity and Peer goes away and a new
session is established. This value would change and
thus indicate to the command generator that this is a
different session."
::= { pcePcepSessionEntry 5 }
pcePcepSessionSpeakerRole OBJECT-TYPE
SYNTAX INTEGER {
pcc(1),
pce(2),
pccandpce(3)
}
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of this object indicates the PCEP
PCE Working Group Expires May 2008 [Page 15]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
speaker role in this session."
::= { pcePcepSessionEntry 6 }
pcePcepSessionSyncTime OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The value of SYNC timer is used in the case
of synchronized path computation request using
the SVEC object.
Consider the case where a PCReq message is received
by a PCE that contains the SVEC object referring to
M synchronized path computation requests. If after
the expiration of the SYNC timer all the M path
computation requests have not been received,
a protocol error is triggered and the PCE MUST cancel
the whole set of path computation requests.
The aim of the SyncTimer is to avoid the storage
of unused synchronized request should one of them get
lost for some reasons (e.g a misbehaving PCC)."
DEFVAL { 60 }
::= { pcePcepSessionEntry 7 }
pcePcepSessionRequestTime OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The maximum amount of time a PCC waits for a
reply before resending its path computation requests
(potentially to an alternate PCE)."
::= { pcePcepSessionEntry 8 }
pcePcepSessionActiveTime OBJECT-TYPE
SYNTAX Unsigned32 (1..65535)
UNITS "seconds"
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The amount of time this session has been active
since creation or a discontinuity."
::= { pcePcepSessionEntry 9 }
PCE Working Group Expires May 2008 [Page 16]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
pcePcepSessionCorruptedMsgs OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of corrupted messages received on this
session."
::= { pcePcepSessionEntry 10 }
pcePcepSessionCorruptedMsgs OBJECT-TYPE
SYNTAX Unsigned32
MAX-ACCESS read-only
STATUS current
DESCRIPTION
"The number of requests which had failed
computations."
::= { pcePcepSessionEntry 11 }
---
--- Notifications
---
pcePcepSessionUp NOTIFICATION-TYPE
OBJECTS {
pcePcepSessionState,
pcePcepSessionDiscontinuityTime
}
STATUS current
DESCRIPTION
"This notification is sent when the
value of 'pcePcepSessionState' enters
the 'sessionUp(1)' state."
::= { pcePcepNotifications 1 }
pcePcepSessionDown NOTIFICATION-TYPE
OBJECTS {
pcePcepSessionState,
pcePcepSessionDiscontinuityTime
}
STATUS current
DESCRIPTION
"This notification is sent when the
value of 'pcePcepSessionState' leaves
the 'sessionUp(1)' state."
::= { pcePcepNotifications 2 }
PCE Working Group Expires May 2008 [Page 17]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
--****************************************************************
-- Module Conformance Statement
--****************************************************************
pcePcepGroups
OBJECT IDENTIFIER ::= { pcePcepConformance 1 }
pcePcepCompliances
OBJECT IDENTIFIER ::= { pcePcepConformance 2 }
--
-- Full Compliance
--
pcePcepModuleFullCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The Module is implemented with support
for read-create and read-write. In other
words, both monitoring and configuration
are available when using this MODULE-COMPLIANCE."
MODULE -- this module
MANDATORY-GROUPS { pcePcepGeneralGroup,
pcePcepNotificationsGroup
}
::= { pcePcepCompliances 1 }
--
-- Read-Only Compliance
--
pcePcepModuleReadOnlyCompliance MODULE-COMPLIANCE
STATUS current
DESCRIPTION
"The Module is implemented with support
for read-only. In other words, only monitoring
is available by implementing this MODULE-COMPLIANCE."
MODULE -- this module
MANDATORY-GROUPS { pcePcepGeneralGroup,
pcePcepNotificationsGroup
}
::= { pcePcepCompliances 2 }
PCE Working Group Expires May 2008 [Page 18]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
-- units of conformance
pcePcepGeneralGroup OBJECT-GROUP
OBJECTS {
pcePcepClientLastChange,
pcePcepClientIndexNext,
pcePcepClientAdminStatus,
pcePcepClientOperStatus,
pcePcepClientTcpPort,
pcePcepClientKeepAliveTimer,
pcePcepClientStorageType,
pcePcepClientRowStatus,
pcePcepPeerLastChange,
pcePcepPeerTransportAddrType,
pcePcepPeerTransportAddr,
pcePcepSessionStateLastChange,
pcePcepSessionState,
pcePcepSessionKeepAliveHoldTimeRem,
pcePcepSessionKeepAliveTime,
pcePcepSessionDiscontinuityTime,
pcePcepClientDeadTimer,
pcePcepSessionMax,
pcePcepSessionSpeakerRole,
pcePcepClientSyncTime,
pcePcepClientRequestTime,
pcePcepSessionMaxUnknownRequests,
pcePcepSessionMaxUnknownMsgs,
pcePcepSessionSessionFailures,
pcePcepSessionActiveTime,
pcePcepSessionCorruptedMsgs,
pcePcepSessionFailedComps
}
STATUS current
DESCRIPTION
"Objects that apply to all PCEP MIB implementations."
::= { pcePcepGroups 1 }
pcePcepNotificationsGroup NOTIFICATION-GROUP
NOTIFICATIONS { pcePcepSessionUp,
pcePcepSessionDown
}
STATUS current
DESCRIPTION
"The notifications for a PCEP MIB implementation."
::= { pcePcepGroups 2 }
END
PCE Working Group Expires May 2008 [Page 19]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
7. Security Considerations
These MIB modules can be used for configuration of certain objects,
and anything that can be configured can be incorrectly configured,
with potentially disastrous results.
There are a number of management objects defined in these MIB modules
with 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. These are the tables and objects and their
sensitivity/vulnerability:
TBD
8. IANA Considerations
-- (Note to RFC-Editor:)
-- We request that you assign contiguous RFC numbers to the
-- IANA is requested to root MIB objects in the MIB module
-- contained in this document under the transmission subtree.
--
9. References
9.1 Normative References
[PCEP] Path Computation Element (PCE) communication Protocol
(PCEP),
JP. Vasseur, JL. Le Roux
[RFC2578] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M., and S. Waldbusser, "Structure of
Management Information Version 2 (SMIv2)", STD 58, RFC
2578, April 1999.
[RFC2579] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M., and S. Waldbusser, "Textual Conventions
for SMIv2", STD 58, RFC 2579, April 1999.
[RFC2580] McCloghrie, K., Perkins, D., Schoenwaelder, J., Case,
J., Rose, M., and S. Waldbusser, "Conformance Statements
for SMIv2", STD 58, RFC 2580, April 1999.
9.2. Informative References
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
PCE Working Group Expires May 2008 [Page 20]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
"Introduction and Applicability Statements for
Internet-Standard Management Framework", RFC 3410,
December 2002.
10. Acknowledgement
The authors would like to thank Santanu Mazumder and Meral
Shirazipour for their valuable input.
11. Authors' Addresses
A S Kiran Koushik
Cisco Systems Inc.
Email: kkoushik@cisco.com
Stephan Emile
France Telecom
2 avenue Pierre Marzin
Lannion, F-22307
Email: emile.stephan@orange-ftgroup.com
Full Copyright Statement
Copyright (C) The IETF Trust (2008).
This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.
This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND
THE INTERNET ENGINEERING TASK FORCE DISCLAIM 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.
Intellectual Property
The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights 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; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.
PCE Working Group Expires May 2008 [Page 21]
draft-kkoushik-pce-pcep-mib-02 PCE-PCEP-MIB Nov 3, 2008
Copies of IPR disclosures made to the IETF Secretariat 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 implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.
The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at
ietf-ipr@ietf.org.
This document is a product of the MPLS Working Group.
Funding for the RFC Editor function is provided by the IETF
Administrative Support Activity (IASA).
PCE Working Group Expires May 2008 [Page 22]