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ARP Mediation Update

This document provides updates on ARP mediation for IP networks, addressing PPP Access Circuit Procedures, IP TLV, and LDP signaling. It proposes new code points for signaling parameters in LDP messages.

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ARP Mediation Update

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  1. ARP Mediation Update Draft-ietf-l2vpn-arp-mediation-02.txt Himanshu Shah Ciena Eric Rosen Cisco Giles Heron, Andy Malis Tellabs Vach Kompella Alcatel

  2. Final Call Comments • Had a final call on -01- version • Good support on the mailing list • Major comments received on • PPP Access Circuit Procedures • Some ID nits • Some clarifications • IP TLV

  3. PPP Access Circuit • Clarification on use of IPCP • to obtain local CE’s IP address • to proxy for Remote CE’s IP address • Comments on PPP options • Thanks to Carlos Pignataro and Mark Lewis with their comments, clarifications and revised text.

  4. IP TLV • ARP Mediation uses Pseudowire of type “IP Layer2 Transport” or in short IP PW. • When signaling for this PW, ARP-Mediation also need to convey local CE’s IP address to remote PE in LDP’s Label Mapping and Notification message • ARP meditation defines parameters that is inserted in “optional parameter” field of the Label Mapping and Notification • In order to facilitate signaling of such parameters, Propose 0x096B from LDP’s TLV Type Name Space for IP TLV • Also need LDP status code point from IANA to report update of CE’s IP address in LDP’s Notification message. Propose 0x00000029 from LDP’s Status Code Name Space

  5. Label Mapping Msg • 1 0 IP = 0x096B Length • CE’s IP Address 0 0 Generic Label Length (0x0200) PW Label Proposed TLV Notification 0 Notification Msg Len PW FEC PW FEC Message Type Status (TLV) Code=0x00000029 IP TLV Optional Parameter Field PW FEC IP TLV

  6. Conclusion • Send Request to MPLS WG to review IANA code point assignments • Propose submitting the draft for IESG review

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