draft-ietf-mpls-tp-mib-management-overview-07.txt   draft-ietf-mpls-tp-mib-management-overview-08.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: August 8, 2012 Aricent Expires: Secptember 13, 2012 Aricent
March 8, 2012 April 13, 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-07.txt draft-ietf-mpls-tp-mib-management-overview-08.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 August 8, 2012. This Internet-Draft will expire on September 13, 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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The purpose of MPLS resiliency is to ensure minimal interruption to The purpose of MPLS resiliency is to ensure minimal interruption to
traffic when the failure occurs within the system or network. traffic when the failure occurs within the system or network.
Various components of MPLS resiliency solutions are; Various components of MPLS resiliency solutions are;
1) Graceful restart in LDP and RSVP-TE modules, 1) Graceful restart in LDP and RSVP-TE modules,
2) Make Before Break, 2) Make Before Break,
3) Protection Switching for LSPs, 3) Protection Switching for LSPs,
4) Fast ReRoute for LSPs, 4) Fast ReRoute for LSPs,
5) PW redundancy. 5) PW redundancy.
The below modules only support the SNMP based MIB management The MIB modules below only support MIB based management for MPLS
for MPLS resiliency. resiliency.
MPLS Fast Reroute (FRR) is a restoration network resiliency mechanism MPLS Fast Reroute (FRR) is a restoration network resiliency mechanism
used in MPLS TE to redirect the traffic onto the backup LSP's in 10s used in MPLS TE to redirect the traffic onto the backup LSP's in 10s
of milliseconds in case of link or node failure across the LSP. of milliseconds in case of link or node failure across the LSP.
MPLS-FRR-GENERAL-STD-MIB [draft-ietf-mpls-fastreroute-mib-14] MPLS-FRR-GENERAL-STD-MIB [draft-ietf-mpls-fastreroute-mib-14]
contains objects that apply to any MPLS LSR implementing MPLS TE fast contains objects that apply to any MPLS LSR implementing MPLS TE fast
reroute functionality. reroute functionality.
MPLS-FRR-ONE2ONE-STD-MIB [draft-ietf-mpls-fastreroute-mib-14] MPLS-FRR-ONE2ONE-STD-MIB [draft-ietf-mpls-fastreroute-mib-14]
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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-------------PAC-MAN------------->+ +<---------------- PW-MPLS-STD-MIB--------------------------------->+
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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5.2.2 Recommendations 5.2.2 Recommendations
- PW-MPLS-STD-MIB [RFC5602] can be enhanced to operate over - PW-MPLS-STD-MIB [RFC5602] can be enhanced to operate over
co-routed/associated bi-directional tunnel. co-routed/associated bi-directional tunnel.
5.3 MPLS-TP Sections 5.3 MPLS-TP Sections
5.3.1 Gap Analysis 5.3.1 Gap Analysis
The existing MPLS MIB modules does not support MPLS-TP sections. The existing MPLS MIB modules do not support MPLS-TP sections.
5.3.2 Recommendations 5.3.2 Recommendations
Link specific and/or path/segment specific sections can be achieved Link specific and/or path/segment specific sections can be supported
by enhancing the IF-MIB [RFC2863], MPLS-TE-STD-MIB [RFC3812] and by enhancing the IF-MIB [RFC2863], MPLS-TE-STD-MIB [RFC3812] and
PW-STD-MIB [RFC5601] MIB modules. PW-STD-MIB [RFC5601] MIB modules.
5.4 MPLS-TP OAM 5.4 MPLS-TP OAM
5.4.1 Gap Analysis 5.4.1 Gap Analysis
MPLS manages the LSP and pseudowire faults through LSP ping MPLS manages the LSP and pseudowire faults through LSP ping
[RFC4379], VCCV [RFC5085], BFD for LSPs [RFC5884] and BFD for VCCV [RFC4379], VCCV [RFC5085], BFD for LSPs [RFC5884] and BFD for VCCV
[RFC5885] tools. [RFC5885] tools.
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