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Inter-AS MPLS TE Requirements draft-zhang-mpls-interas-te-req-02.txt

This draft outlines technical requirements for extending MPLS TE across AS boundaries, focusing on resource optimization, QoS path guarantee, and fast local repair upon failures. It addresses application scenarios and the need for re-optimization triggered by resource changes within transiting AS. The document emphasizes the need for solutions to meet these requirements for better path evaluation.

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Inter-AS MPLS TE Requirements draft-zhang-mpls-interas-te-req-02.txt

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  1. Inter-AS MPLS TE Requirementsdraft-zhang-mpls-interas-te-req-02.txt Raymond Zhang, INFONET JP Vasseur, Cisco Kenji Kumaki, KDDI Paul Mabey, Qwest Nadim Constantine, INFONET Pierre Merckx, Equant Ting-Wo Chung, Bell Canada JL Le Roux, France Telecom draft-zhang-mpls-interas-te-req-02.txt

  2. Update of the Draft -02 • This draft is driven by requirements from SPs with matching application scenarios. • Support and contributions continue to expand: • Revision 00: INFONET, KDDI and Qwest • Revision 01: Equant • Revision 02: Bell Canada, France Telecom • Additionally, we have received very helpful comments from Yuichi/NTT and Dave/Nortel which are incorporated in -02. draft-zhang-mpls-interas-te-req-02.txt

  3. Update of the Draft -02 • This draft is NOT about VPN (Layer2 or Layer3), but about the requirements for extending MPLS TE across AS boundaries: • Application scenarios are used to illustrate the requirement of inter-AS MPLS TE, some are in the context of L3 VPN services • This draft is to document requirements that could lead to solutions to provide the following: • Resource optimization across AS boundaries • Resource guarantee along QoS path across multiple ASes • Reliability with Fast local repair upon link/SRLG/node failure across inter-AS links. draft-zhang-mpls-interas-te-req-02.txt

  4. Update of the Draft -02 • The following major areas are updated: • Updated some application scenarios per comments • Added a new section on re-optimization as one of detailed requirements (sec. 5.10) • Resource condition changes inside any transiting AS should trigger re-optimization • Signaled by the intermediate nodes to the HE • Ability for HE to trigger better path evaluation • Others… draft-zhang-mpls-interas-te-req-02.txt

  5. Conclusion • In IETF 55 (Atlanta), we seem all agree that this draft is part of the TEWG charter (meeting minutes shown below): o) Inter AS requirements > > [see presentation] > > > > Discussion on if TEWG is right place for these types of > > requirements, show of hands indicated it was and there was no > > objection. Bert confirmed that was his understanding of where > > these would be too. Also, show of hands indicated it is about time > > to take this type of requirements work on. draft-zhang-mpls-interas-te-req-02.txt

  6. Conclusion • What’s documented in this draft are concrete technical requirements. • This is the Only req’s draft on this topic today • Once again, we would like to propose the TE WG to adopt this draft as a WG document so as to: • Bring further focus on any additional discussions about inter-AS TE requirements • Begin discussions on solutions: • e.g., http://www.ietf.org/internet-drafts/draft-vasseur-inter-as-te-00.txt draft-zhang-mpls-interas-te-req-02.txt

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