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Scope

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Scope

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  1. OAM Procedures for VPWS Interworkingdraft-aissaoui-l2vpn-vpws-iw-oam-02Mustapha Aïssaoui, Matthew Bocci, David Watkinson, AlcatelHamid Ould-Brahim, Mike Loomis, David Allan, NortelThomas D. Nadeau, Monique Morrow, Cisco SystemsJohn Z. Yu, Hammerhead SystemsHimanshu Shah, CienaPaul Doolan, Mangrove SystemsPeter Busschbach, Lucent Technologies

  2. Scope • This draft specifies the procedures for OAM interworking for the following VPWS: • IP L2 interworking (ARP-mediation) • FR-ATM interworking (FRF8.2) • Ethernet interworking • It complements draft-ietf-pwe3-oam-msg-map-01.txt, which covers the homogeneous VPWS

  3. Changes from Revision 01 • Addressed three issues raised by coauthors • Issue 1: Defect loop operation • Single emulated end-to-end loop versus multiple coupled loops • settled on a modified "coupled loop" model which we believe works in all scenarios addressed in the draft • Issue 2: • Should the receipt of a defect in the reverse direction of a remote AC or a PW result in a different action at a PE? • we analyzed the defects for all scenarios in the draft and we have now updated the text to treat this as a separate defect • Issue 3: • Check the behavior in the case of L2TPv3 PSN • Updated PW defect handling procedures using StopCCN and CDN messages after discussion with Mark Townsley in San-Diego

  4. Next Steps • Add support for inband fault notification based on BFD • Authors would like to make this document a Working Group draft • Progress as the basis for OAM for IP L2 Interworking work item • Sent message to mailing list to request more feedback

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