Red Hat Bugzilla – 1707939 – [BACKPORT][OSP10] - OVS/ml2 - ipv6 forwarding is broken in HA neutron routers due to incorrect ipv6 kernel forwarding parameters
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
https://access.redhat.com/errata/RHBA-2019:3115