draft-ietf-mpls-tp-mib-management-overview-06.txt   draft-ietf-mpls-tp-mib-management-overview-07.txt 
Network Working Group D. King (Editor) Network Working Group D. King (Editor)
Internet-Draft Old Dog Consulting Internet-Draft Old Dog Consulting
Intended status: Informational M. Venkatesan (Editor) Intended status: Informational M. Venkatesan (Editor)
Expires: June 30, 2012 Aricent Expires: August 8, 2012 Aricent
January 31, 2012 March 8, 2012
Multiprotocol Label Switching Transport Profile (MPLS-TP) Multiprotocol Label Switching Transport Profile (MPLS-TP)
MIB-based Management Overview MIB-based Management Overview
draft-ietf-mpls-tp-mib-management-overview-06.txt draft-ietf-mpls-tp-mib-management-overview-07.txt
Abstract Abstract
A range of Management Information Base (MIB) modules has been A range of Management Information Base (MIB) modules has been
developed to help model and manage the various aspects of developed to help model and manage the various aspects of
Multiprotocol Label Switching (MPLS) networks. These MIB modules are Multiprotocol Label Switching (MPLS) networks. These MIB modules are
defined in separate documents that focus on the specific areas of defined in separate documents that focus on the specific areas of
responsibility of the modules that they describe. responsibility of the modules that they describe.
The MPLS Transport Profile (MPLS-TP) is a profile of MPLS The MPLS Transport Profile (MPLS-TP) is a profile of MPLS
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt. http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html. http://www.ietf.org/shadow.html.
This Internet-Draft will expire on June 30, 2012. This Internet-Draft will expire on August 8, 2012.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of (http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents publication of this document. Please review these documents
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Table of Contents Table of Contents
1. Introduction.................................................3 1. Introduction.................................................3
1.1 MPLS-TP Management Function.................................4 1.1 MPLS-TP Management Function.................................4
2. Terminology..................................................4 2. Terminology..................................................4
3. The SNMP Management Framework................................4 3. The SNMP Management Framework................................4
4. Overview of Existing Work....................................5 4. Overview of Existing Work....................................5
4.1. MPLS Management Overview and Requirements...............5 4.1. MPLS Management Overview and Requirements...............5
4.2. An Introduction to the MPLS and Pseudowire MIB Modules..5 4.2. An Introduction to the MPLS and Pseudowire MIB Modules..5
4.2.1. Structure of the MPLS MIB OID Tree...............5 4.2.1. Structure of the MPLS MIB OID Tree...............5
4.2.2. Textual Convention Modules.......................6 4.2.2. Textual Convention Modules.......................7
4.2.3. Label Switched Path (LSP) Modules................7 4.2.3. Label Switched Path (LSP) Modules................7
4.2.4. Label Edge Router (LER) Modules..................7 4.2.4. Label Edge Router (LER) Modules..................7
4.2.5. Label Switching Router (LSR) Modules.............7 4.2.5. Label Switching Router (LSR) Modules.............7
4.2.6. Pseudowire Modules...............................8 4.2.6. Pseudowire Modules...............................8
4.2.7. Routing and Traffic Engineering..................9 4.2.7. Routing and Traffic Engineering..................9
4.2.8. Resiliency.......................................9 4.2.8. Resiliency.......................................9
4.2.9. Fault Management and Performance Management......10 4.2.9. Fault Management and Performance Management......10
4.2.10. MIB Module Interdependencies....................11 4.2.10. MIB Module Interdependencies....................11
4.2.11. Dependencies on External MIB Modules............13 4.2.11. Dependencies on External MIB Modules............13
5. Applicability of MPLS MIB modules to MPLS-TP.................14 5. Applicability of MPLS MIB modules to MPLS-TP.................14
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5.2.1 Gap Analysis.......................................15 5.2.1 Gap Analysis.......................................15
5.2.2 Recommendations....................................15 5.2.2 Recommendations....................................15
5.3 MPLS-TP Sections.........................................15 5.3 MPLS-TP Sections.........................................15
5.3.1 Gap Analysis.......................................15 5.3.1 Gap Analysis.......................................15
5.3.2 Recommendations....................................15 5.3.2 Recommendations....................................15
5.4 MPLS-TP OAM..............................................16 5.4 MPLS-TP OAM..............................................16
5.4.1 Gap Analysis.......................................16 5.4.1 Gap Analysis.......................................16
5.4.2 Recommendations....................................16 5.4.2 Recommendations....................................16
5.5 MPLS-TP Protection Switching and Recovery................16 5.5 MPLS-TP Protection Switching and Recovery................16
5.5.1 Gap Analysis.......................................16 5.5.1 Gap Analysis.......................................16
5.5.2 Recommendations....................................17 5.5.2 Recommendations....................................16
5.6 MPLS-TP Interfaces.......................................17 5.6 MPLS-TP Interfaces.......................................16
5.6.1 Gap Analysis.......................................17 5.6.1 Gap Analysis.......................................16
5.6.2 Recommendations....................................17 5.6.2 Recommendations....................................17
6. An Introduction to the MPLS-TP MIB Modules...................17 6. An Introduction to the MPLS-TP MIB Modules...................17
6.1 MPLS-TP MIB Modules......................................17 6.1 MPLS-TP MIB Modules......................................17
6.1.1 Structure of the MPLS-TP MIB OID Tree.............17 6.1.1 NEW MIB Modules for MPLS-TP.......................17
6.1.2 Textual Conventions for MPLS-TP...................18 6.1.2 Textual Conventions for MPLS-TP...................18
6.1.3 Identifiers for MPLS-TP...........................18 6.1.3 Identifiers for MPLS-TP...........................18
6.1.4 LSR MIB Extensions for MPLS-TP....................18 6.1.4 LSR MIB Extensions for MPLS-TP....................18
6.1.5 Tunnel Extensions for MPLS-TP.....................18 6.1.5 Tunnel Extensions for MPLS-TP.....................18
6.2 PWE3 MIB Modules for MPLS-TP.............................19 6.2 PWE3 MIB Modules for MPLS-TP.............................18
6.2.1 Structure of the PWE3 MIB OID Tree for MPLS-TP....19 6.2.1 New MIB Modules for MPLS-TP Pseudowires...........18
6.2.2 Pseudowire Textual Conventions for MPLS-TP........19 6.2.2 Pseudowire Textual Conventions for MPLS-TP........19
6.2.3 Pseudowire Extensions for MPLS-TP.................19 6.2.3 Pseudowire Extensions for MPLS-TP.................19
6.2.4 Pseudowire MPLS Extensions for MPLS-TP............19 6.2.4 Pseudowire MPLS Extensions for MPLS-TP............19
6.3 OAM MIB Modules for MPLS-TP..............................20 6.3 OAM MIB Modules for MPLS-TP..............................19
6.3.1 Structure of the OAM MIB OID Tree for MPLS-TP.....20 6.3.1 New MIB Modules for OAM for MPLS-TP...............19
6.3.2 BFD MIB module....................................20 6.3.2 BFD MIB module....................................19
6.3.3 Common OAM MIB modules............................20 6.3.3 Common OAM MIB modules............................20
6.4. Protection Switching and Recovery MIB Modules 6.4. Protection Switching and Recovery MIB Modules
for MPLS-TP.............................................20 for MPLS-TP.............................................20
6.4.1 Structure of the Protection Switching 6.4.1 New MIB Modules for MPLS Protection Switching
and Recovery MIB OID Tree for MPLS-TP.............20 and Recovery............................................20
6.4.2 Linear Protection Switching MIB module............21 6.4.2 Linear Protection Switching MIB module............20
6.4.3 Ring Protection Switching MIB module..............21 6.4.3 Ring Protection Switching MIB module..............20
6.4.4 Mesh Protection Switching MIB module..............21 6.4.4 Mesh Protection Switching MIB module..............20
7. Management Options...........................................21 7. Management Options...........................................20
8. Security Considerations......................................21 8. Security Considerations......................................21
9. IANA Considerations..........................................22 9. IANA Considerations..........................................21
10. Acknowledgements............................................22 10. Acknowledgements............................................21
11. References..................................................22 11. References..................................................22
11.1. Normative References...................................22 11.1. Normative References...................................22
11.2. Informational References...............................24 11.2. Informational References...............................23
12. Authors' Addresses..........................................26 12. Authors' Addresses..........................................27
1. Introduction 1. Introduction
The MPLS Transport Profile (MPLS-TP) is a packet transport The MPLS Transport Profile (MPLS-TP) is a packet transport
technology based on a profile of the MPLS functionality specific technology based on a profile of the MPLS functionality specific
to the construction of packet-switched transport networks. to the construction of packet-switched transport networks.
MPLS is described in [RFC3031] and requirements for MPLS-TP are MPLS is described in [RFC3031] and requirements for MPLS-TP are
specified in [RFC5654]. specified in [RFC5654].
A range of Management Information Base (MIB) modules has been A range of Management Information Base (MIB) modules has been
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| | | | | | | | | | | | | |
| | +<--- GMPLS-TE-STD-MIB ------------->+ | | +<--- GMPLS-TE-STD-MIB ------------->+
| | ^ ^ | | ^ ^
+<--- PW-STD-MIB <------+ | | +<--- PW-STD-MIB <------+ | |
^ ^ | | ^ ^ | |
| | | | | | | |
+<--- PW-ENET-STD-MIB ->+ | | +<--- PW-ENET-STD-MIB ->+ | |
^ ^ | | ^ ^ | |
| | | | | | | |
| | | | | | | |
+<---------------- PW-MPLS-STD-MIB -------------------------------->+ +<---------------- PW-MPLS-STD-MIB-------------PAC-MAN------------->+
Thus: Thus:
- All the MPLS MIB modules depend on MPLS-TC-STD-MIB. - All the MPLS MIB modules depend on MPLS-TC-STD-MIB.
- All the GMPLS MIB modules depend on GMPLS-TC-STD-MIB. - All the GMPLS MIB modules depend on GMPLS-TC-STD-MIB.
- All the PW MIB modules depend on PW-TC-STD-MIB. - All the PW MIB modules depend on PW-TC-STD-MIB.
- MPLS-LDP-STD-MIB, MPLS-TE-STD-MIB, MPLS-FTN-STD-MIB, - MPLS-LDP-STD-MIB, MPLS-TE-STD-MIB, MPLS-FTN-STD-MIB,
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The MPLS MIB modules do not provide support for configuring The MPLS MIB modules do not provide support for configuring
the interfaces within the context of an operator. the interfaces within the context of an operator.
5.6.2 Recommendations 5.6.2 Recommendations
New MIB definitions can be created to address the gaps mentioned New MIB definitions can be created to address the gaps mentioned
in the 5.6.1 Gap Analysis section. in the 5.6.1 Gap Analysis section.
6. An Introduction to the MPLS-TP MIB Modules 6. An Introduction to the MPLS-TP MIB Modules
This section highlights MIB modules that have been identified This section highlights new MIB modules that have been identified
as being required for MPLS-TP. This section also provides an overview as being required for MPLS-TP. This section also provides an overview
of the following: the purpose of each of the MIB modules within the MIB documents, what
it can be used for, and how it relates to the other MIB modules.
- the MPLS Object Identifier (OID) tree structure and the position
of different MPLS related MIB modules on this tree;
- the purpose of each of the MIB modules within the MIB documents,
what it can be used for, and how it relates to the other MIB
modules.
Note that each new MIB module (apart from Textual Conventions Note that each new MIB module (apart from Textual Conventions
modules) will contain one or more Compliance Statements to indicate modules) will contain one or more Compliance Statements to indicate
which objects must be supported in what manner to claim a specific which objects must be supported in what manner to claim a specific
level of compliance. Additional text, either in the documents that level of compliance. Additional text, either in the documents that
define the MIB modules or in separate Applicability Statements, will define the MIB modules or in separate Applicability Statements, will
define which Compliance Statements need to be conformed to in order define which Compliance Statements need to be conformed to in order
to provide specific MPLS-TP function. This document does not set any to provide specific MPLS-TP function. This document does not set any
requirements in that respect although some recommendations are requirements in that respect although some recommendations are
included in the sections that follow. included in the sections that follow.
6.1 MPLS-TP MIB Modules 6.1 MPLS-TP MIB Modules
6.1.1 Structure of the MPLS-TP MIB OID Tree 6.1.1 NEW MIB Modules for MPLS-TP
The MPLS-TP MIB OID tree as proposed in [MPLS-TP-TE-MIB] has the Four new MIB modules are identified as follows:
following structure:
transmission -- RFC 2578 [RFC2578] - Textual Conventions for MPLS-TP
|
+- mplsStdMIB
|
+- Textual Conventions for MPLS-TP
|
+- Identifiers for MPLS-TP
|
+- LSR MIB Extensions for MPLS-TP
|
+- TE MIB Extensions for MPLS-TP
Note that the MIB modules described above are applicable - Identifiers for MPLS-TP
for MPLS operations as well.
Note: The OIDs for MIB modules are yet to be assigned and managed by - LSR MIB Extensions for MPLS-TP
IANA.
- TE MIB Extensions for MPLS-TP
Note that the MIB modules mentioned here are applicable for MPLS
operations as well.
6.1.2 Textual Conventions for MPLS-TP 6.1.2 Textual Conventions for MPLS-TP
A new MIB module needs to be written that will define textual A new MIB module needs to be written that will define textual
conventions [RFC2579] for MPLS-TP related MIB modules. These conventions [RFC2579] for MPLS-TP related MIB modules. These
conventions allow multiple MIB modules to use the same syntax and conventions allow multiple MIB modules to use the same syntax and
format for a concept that is shared between the MIB modules. format for a concept that is shared between the MIB modules.
For example, MEP identifier is used to identify maintenance entity For example, MEP identifier is used to identify maintenance entity
group end point within MPLS-TP networks. The textual convention group end point within MPLS-TP networks. The textual convention
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co-routed or associated bidirectionally. co-routed or associated bidirectionally.
The MPLS-TE-STD-MIB must be extended to support the MPLS-TP specific The MPLS-TE-STD-MIB must be extended to support the MPLS-TP specific
attributes for the tunnel. attributes for the tunnel.
6.2 PWE3 MIB Modules for MPLS-TP 6.2 PWE3 MIB Modules for MPLS-TP
This section provides an overview of Pseudowire extension MIB This section provides an overview of Pseudowire extension MIB
modules to meet the MPLS based transport network requirements. modules to meet the MPLS based transport network requirements.
6.2.1 Structure of the PWE3 MIB OID Tree for MPLS-TP 6.2.1 New MIB Modules for MPLS-TP Pseudowires
mib-2 -- RFC 2578 [RFC2578] Three new MIB modules are identified as follows:
|
+-transmission
| |
| +- Pseudowire Extensions for MPLS-TP
|
+- Pseudowire MPLS Extensions for MPLS-TP
|
+- Pseudowire Textual Conventions for MPLS-TP
Note: The OIDs for MIB modules are yet to be assigned and managed by - Pseudowire Extensions for MPLS-TP
IANA.
- Pseudowire MPLS Extensions for MPLS-TP
- Pseudowire Textual Conventions for MPLS-TP
6.2.2 Pseudowire Textual Conventions for MPLS-TP 6.2.2 Pseudowire Textual Conventions for MPLS-TP
PW-TC-STD-MIB MIB defines textual conventions used for pseudowire PW-TC-STD-MIB MIB defines textual conventions used for pseudowire
(PW) technology and for Pseudowire Edge-to-Edge Emulation (PWE3) MIB (PW) technology and for Pseudowire Edge-to-Edge Emulation (PWE3) MIB
Modules. A new textual convention MIB module is required to define Modules. A new textual convention MIB module is required to define
textual definitions for MPLS-TP specific Pseudowire attributes. textual definitions for MPLS-TP specific Pseudowire attributes.
6.2.3 Pseudowire Extensions for MPLS-TP 6.2.3 Pseudowire Extensions for MPLS-TP
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The newly extended MIB defines the managed objects, extending The newly extended MIB defines the managed objects, extending
PW-MPLS-STD-MIB, by supporting with or without MPLS-TP as outer PW-MPLS-STD-MIB, by supporting with or without MPLS-TP as outer
tunnel. tunnel.
6.3 OAM MIB Modules for MPLS-TP 6.3 OAM MIB Modules for MPLS-TP
This section provides an overview of Operations, Administration, This section provides an overview of Operations, Administration,
and Maintenance (OAM) MIB modules for MPLS LSPs and Pseudowires. and Maintenance (OAM) MIB modules for MPLS LSPs and Pseudowires.
6.3.1 Structure of the OAM MIB OID Tree for MPLS-TP 6.3.1 New MIB Modules for OAM for MPLS-TP
mib-2 -- RFC 2578 [RFC2578] Two new MIB modules are identified as follows:
|
+-transmission
|
+- BFD MIB module
|
+- OAM MIB module
Note: The OIDs for MIB modules are yet to be assigned and managed by - BFD MIB module
IANA.
- OAM MIB module
6.3.2 BFD MIB module 6.3.2 BFD MIB module
BFD-STD-MIB defines managed objects for performing BFD operation in BFD-STD-MIB defines managed objects for performing BFD operation in
IP networks. This MIB is modeled to support BFD protocol [RFC5880]. IP networks. This MIB is modeled to support BFD protocol [RFC5880].
A new MIB module needs to be written that will be an extension to A new MIB module needs to be written that will be an extension to
BFD-STD-MIB managed objects to support BFD operations on MPLS LSPs BFD-STD-MIB managed objects to support BFD operations on MPLS LSPs
and PWs. and PWs.
6.3.3 Common OAM MIB modules 6.3.3 Common OAM MIB modules
A new MIB module needs to be written that will define managed objects A new MIB module needs to be written that will define managed objects
for OAM maintenance identifiers i.e. Maintenance Entity Group for OAM maintenance identifiers i.e. Maintenance Entity Group
Identifiers (MEG), Maintenance Entity Group End-point (MEP), Identifiers (MEG), Maintenance Entity Group End-point (MEP),
Maintenance Entity Group Intermediate Point (MIP). Maintenance points Maintenance Entity Group Intermediate Point (MIP). Maintenance points
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Identifiers (MEG), Maintenance Entity Group End-point (MEP), Identifiers (MEG), Maintenance Entity Group End-point (MEP),
Maintenance Entity Group Intermediate Point (MIP). Maintenance points Maintenance Entity Group Intermediate Point (MIP). Maintenance points
are uniquely associated with a MEG. Within the context of a MEG, MEPs are uniquely associated with a MEG. Within the context of a MEG, MEPs
and MIPs must be uniquely identified. and MIPs must be uniquely identified.
6.4. Protection Switching and Recovery MIB Modules for MPLS-TP 6.4. Protection Switching and Recovery MIB Modules for MPLS-TP
This section provides an overview of protection switching and This section provides an overview of protection switching and
recovery MIB modules for MPLS LSPs and Pseudowires. recovery MIB modules for MPLS LSPs and Pseudowires.
6.4.1 Structure of the MPLS Protection Switching and Recovery MIB OID 6.4.1 New MIB Modules for MPLS Protection Switching and Recovery
Tree for MPLS-TP
mib-2 -- RFC 2578 [RFC2578] Three new MIB modules are identified as follows:
|
+-transmission
|
+- Linear Protection Switching MIB module
|
+- Ring Protection Switching MIB module
|
+- Mesh Protection Switching MIB module
Note: The OIDs for MIB modules are yet to be assigned and managed by - Linear Protection Switching MIB module
IANA.
- Ring Protection Switching MIB module
- Mesh Protection Switching MIB module
6.4.2 Linear Protection Switching MIB module 6.4.2 Linear Protection Switching MIB module
A new MIB module needs to be written that will define managed objects A new MIB module needs to be written that will define managed objects
for linear protection switching of MPLS LSPs and Pseudowires. for linear protection switching of MPLS LSPs and Pseudowires.
6.4.3 Ring Protection Switching MIB module 6.4.3 Ring Protection Switching MIB module
A new MIB module will define managed objects for ring protection A new MIB module will define managed objects for ring protection
switching of MPLS LSPs and Pseudowires. switching of MPLS LSPs and Pseudowires.
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9. IANA Considerations 9. IANA Considerations
This document has identified areas where additional MIB modules are This document has identified areas where additional MIB modules are
neccessary for MPLS-TP. The new MIB modules recommended by this neccessary for MPLS-TP. The new MIB modules recommended by this
document will require OID assignments from IANA. However, this document will require OID assignments from IANA. However, this
document makes no specific request for IANA action. document makes no specific request for IANA action.
10. Acknowledgements 10. Acknowledgements
The authors would like to thank Eric Gray, Thomas Nadeau, Benjamin The authors would like to thank Eric Gray, Thomas Nadeau, Benjamin
Niven-Jenkins, Saravanan Narasimhan and Joel Halpern for their Niven-Jenkins, Saravanan Narasimhan, Joel Halpern, David Harrington,
valuable comments. and Stephen Farrell for their valuable comments.
This document also benefited from review by participants in ITU-T This document also benefited from review by participants in ITU-T
Study Group 15. Study Group 15.
11. References 11. References
11.1 Normative References 11.1 Normative References
[RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group [RFC2863] McCloghrie, K. and F. Kastenholz, "The Interfaces Group
MIB using SMIv2", RFC 2863, June 2000. MIB using SMIv2", RFC 2863, June 2000.
skipping to change at page 26, line 32 skipping to change at page 27, line 5
Network Management Requirements", RFC 5951, September Network Management Requirements", RFC 5951, September
2010. 2010.
[RFC6370] Bocci, M., Swallow, G., and E. Gray, "MPLS Transport [RFC6370] Bocci, M., Swallow, G., and E. Gray, "MPLS Transport
Profile (MPLS-TP) Identifiers", RFC 6370, September 2011. Profile (MPLS-TP) Identifiers", RFC 6370, September 2011.
[MPLS-TP-OAM-FWK] Busi, I. and B. Niven-Jenkins, "MPLS-TP OAM [MPLS-TP-OAM-FWK] Busi, I. and B. Niven-Jenkins, "MPLS-TP OAM
Framework and Overview", 2009, Framework and Overview", 2009,
<draft-ietf-mpls-tp-oam-framework>. <draft-ietf-mpls-tp-oam-framework>.
[MPLS-TP-TE-MIB] Venkatesan, M., Sampath, Kannan KV., Nadeau, T.,
Aldrin, S., "MPLS-TP Traffic Engineering (TE)
Management Information Base (MIB)", 2011,
<draft-ietf-mpls-tp-te-mib-01>.
12. Authors' Addresses 12. Authors' Addresses
Adrian Farrel
Old Dog Consulting
UK
Email: adrian@olddog.co.uk
Daniel King Daniel King
Old Dog Consulting Old Dog Consulting
UK UK
Email: daniel@olddog.co.uk Email: daniel@olddog.co.uk
Venkatesan Mahalingam Venkatesan Mahalingam
Aricent Aricent
India India
Email: venkat.mahalingams@gmail.com Email: venkat.mahalingams@gmail.com
Adrian Farrel
Old Dog Consulting
UK
Email: adrian@olddog.co.uk
Scott Mansfield Scott Mansfield
Ericsson Ericsson
300 Holger Way, San Jose, CA 95134, US 300 Holger Way, San Jose, CA 95134, US
Phone: +1 724 931 9316 Phone: +1 724 931 9316
Email: scott.mansfield@ericsson.com Email: scott.mansfield@ericsson.com
Jeong-dong Ryoo Jeong-dong Ryoo
ETRI ETRI
161 Gajeong, Yuseong, Daejeon, 305-700, South Korea 161 Gajeong, Yuseong, Daejeon, 305-700, South Korea
Phone: +82 42 860 5384 Phone: +82 42 860 5384
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