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IETF RFC 3386
[ACTIVE]

Network Hierarchy and Multilayer Survivability

Metadata

Publisher
IETF
Doc Type
Informational
Pages
27
Abstract
This document is the deliverable out of the Network Hierarchy and Survivability Techniques Design Team established within the Traffic Engineering Working Group. This team collected and documented current and near term requirements for survivability and hierarchy in service provider environments. For clarity, an expanded set of definitions is included. The team determined that there appears to be a need to define a small set of interoperable survivability approaches in packet and non-packet networks. Suggested approaches include path-based as well as one that repairs connections in proximity to the network fault. They operate primarily at a single network layer. For hierarchy, there did not appear to be a driving near-term need for work on 'vertical hierarchy,' defined as communication between network layers such as TDM/optical and MPLS. In particular, instead of direct exchange of signaling and routing between vertical layers, some looser form of coordination and communication, such as the specification of hold-off timers, is a nearer term need. For 'horizontal hierarchy' in data networks, there are several pressing needs. The requirement is to be able to set up many LSPs in a service provider network with hierarchical IGP. This is necessary to support layer 2 and layer 3 VPN services that require edge-to- edge signaling across a core network. Please send comments to te-wg@ops.ietf.org
Publication Date
2002-11-01
Status Note
Informational
DOI
10.17487/RFC3386
Link
https://doi.org/10.17487/RFC3386
Author(s)
Wai Lai
Dave McDysan
Keyword(s)
Service Provider, Packet Networks, Restoration, Recovery
Latest version of IETF RFC 3386

Document Versions — IETF RFC 3386

  • ▶ IETF RFC 3386 (2002-11-01)
    THIS DOC [ACTIVE] [LATEST VERSION]

Bibliographic Reference(s)

  • G. Ash, et. al., "Requirements for Multi-Area TE" , Work in Progress. EXTERNAL
  • P. Pan (Editor), D.H. Gan, G. Swallow, J. Vasseur, D. Cooper, A. Atlas, and M. Jork, "Fast Reroute Extensions to RSVP-TE for LSP Tunnels", Work in Progress. EXTERNAL
  • S. Dharanikota, R. Jain, D. Papadimitriou, R. Hartani, G. Bernstein, V. Sharma, C. Brownmiller, Y. Xue, and J. Strand, "Inter-domain routing with Shared Risk Groups", Work in Progress. EXTERNAL
  • D. Allan and M. Azad, "A Framework for MPLS User Plane OAM," Work in Progress. EXTERNAL
  • K. Owens, V. Sharma, and M. Oommen, "Network Survivability Considerations for Traffic Engineered IP Networks", Work in Progress. EXTERNAL
  • G. Li, C. Kalmanek, J. Yates, G. Bernstein, F. Liaw, and V. Sharma, "RSVP-TE Extensions For Shared-Mesh Restoration in Transport Networks", Work in Progress. EXTERNAL
  • A. Iwata, N. Fujita, G.R. Ash, and A. Farrel, "Crankback Routing Extensions for MPLS Signaling", Work in Progress. EXTERNAL
  • S. Kini, M. Kodialam, T.V. Lakshman, S. Sengupta, and C. Villamizar, "Shared Backup Label Switched Path Restoration," Work in Progress. EXTERNAL
  • M. Thorup, "Fortifying OSPF/ISIS Against Link Failure", http://www.research.att.com/~mthorup/PAPERS/lf_ospf.ps EXTERNAL
  • A. Chiu and J. Strand, "Joint IP/Optical Layer Restoration after a Router Failure", Proc. OFC'2001, Anaheim, CA, March 2001. EXTERNAL
  • N. Harrison, P. Willis, S. Davari, E. Cuevas, B. Mack-Crane, E. Franze, H. Ohta, T. So, S. Goldfless, and F. Chen, "Requirements for OAM in MPLS Networks," Work in Progress. EXTERNAL
  • A. Atlas, C. Villamizar, and C. Litvanyi, "MPLS RSVP-TE Interoperability for Local Protection/Fast Reroute", Work in Progress. EXTERNAL
  • K. Kompella and Y. Rekhter, "Multi-area MPLS Traffic Engineering", Work in Progress. EXTERNAL
  • V. Sharma, B. Crane, S. Makam, K. Owens, C. Huang, F. Hellstrand, J. Weil, L. Andersson, B. Jamoussi, B. Cain, S. Civanlar, and A. Chiu, "Framework for MPLS-based Recovery", Work in Progress. EXTERNAL
  • C-Y Lee, A. Celer, N. Gammage, S. Ghanti, G. Ash, "Distributed Route Exchangers", Work in Progress. EXTERNAL
  • C-Y Lee and S. Ghanti, "Path Request and Path Reply Message" , Work in Progress. EXTERNAL
  • IETF RFC 2026 [Active*]
  • IETF RFC 2119 [Active*]
  • IETF RFC 2401 [Superseded*]
  • IETF RFC 2702 [Active*]
  • IETF RFC 3272 [Superseded*]
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IETF RFC 3386, Network Hierarchy and Multilayer Survivability. Available at https://doi.org/10.17487/RFC3386
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IETF RFC 3386, Network Hierarchy and Multilayer Survivability. Available at https://doi.org/10.17487/RFC3386
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<span class="citation"><cite>IETF RFC 3386</cite>, Network Hierarchy and Multilayer Survivability. Available at <a href="https://doi.org/10.17487/RFC3386" target="_blank" rel="noopener">https://doi.org/10.17487/RFC3386</a></span>

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IETF RFC 3386, Network Hierarchy and Multilayer Survivability
doi: 10.17487/RFC3386
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