ARP Mediation Update

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 CEs IP address
• to proxy for Remote CEs 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 CEs IP address to remote PE
  in LDPs 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 LDPs TLV Type
  Name Space for IP TLV
• Also need LDP status code point from IANA to
  report update of CEs IP address in LDPs
  Notification message. Propose 0x00000029 from
  LDPs Status Code Name Space

5
Proposed TLV
Notification
0 Notification Msg Len

PW FEC
PW FEC
Message Type
Status (TLV) Code0x00000029
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