Frr: EVPN proxy ARP

[pguibert6WIND]

Description

Draft [0] proposes a way to address ARP/NDP messages reduction by using proxy ARP.
Neigh_suppress can already be used to reduce arp messages transiting through the vxlan bridge port.
The feature here should address some complements:
a- handle ARP/NDP requests ( and reply if possible/needed)
b- send gratuitous ARPs/NDiscNotify

First thought would be:

• to implement b) as part of ZEBRA, as a per bridge interface command.
• for a), ARP/ND requests would be intercepted and stopped from transit, and ZEBRA daemon would handle responses ( or reemission of queries)

Useful links

[0] https://tools.ietf.org/html/draft-ietf-bess-evpn-proxy-arp-nd-08

[bisdhdh]

Hi @pguibert6WIND / @qlyoung ,
We are in the mid of scoping of the work effort and present first-cut of it in the FRR meeting in couple of weeks.
Please assign this feature to @vishaldhingra and myself(@bisdhdh), in-order to avoid duplicate efforts.

[pguibert6WIND]

Hi @bisdhdh
good news, then.
you should add in loop @AnuradhaKaruppiah Nsoni, and Vivek from Cumulus that have their own implementation of neighbor manager ( because it is a separate daemon).

[pguibert6WIND]

Hi @bisdhdh , any updates on this, please?

[pguibert6WIND]

Hi @bisdhdh , any updates on this, please?

[pguibert6WIND]

Hi @vishaldhingra , any updates on this ticket, please?