OpenStack Compute (nova)

  1. Bug #1526818
  2. Comment #7

Comment 7 for bug 1526818

Revision history for this message
Yushiro FURUKAWA (y-furukawa-2) wrote : Re: Incorrect and excess ARP responses in tenant subnets

Hi Michael, sorry for late reply.

You can confirm GARP response by using following commands:

  arping -D <ip_address>

BTW, I've reproduced similar behavior with following conditions:

  - network_type: VLAN
  - core_plugin: ML2 with ovs driver

Then, I avoided this behavior by setting following commands:

  sysctl -w net.ipv4.conf.all.arp_ignore=1

or

  sysctl -w net.ipv4.conf.default.arp_ignore=1
  sysctl -w net.ipv4.conf.<bridge_name1>.arp_ignore=1
  sysctl -w net.ipv4.conf.<bridge_name2>.arp_ignore=1
  ...

Please try it :)