Bug 1469048 - Backup HA router sending traffic, traffic from switch interrupted
Summary: Backup HA router sending traffic, traffic from switch interrupted
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-neutron
Version: 10.0 (Newton)
Hardware: x86_64
OS: Linux
high
high
Target Milestone: z2
: 11.0 (Ocata)
Assignee: Daniel Alvarez Sanchez
QA Contact: Roee Agiman
URL:
Whiteboard:
Depends On: 1426735 1469051
Blocks:
TreeView+ depends on / blocked
 
Reported: 2017-07-10 10:34 UTC by Daniel Alvarez Sanchez
Modified: 2017-09-13 21:47 UTC (History)
12 users (show)

Fixed In Version: openstack-neutron-10.0.2-6.el7ost
Doc Type: Bug Fix
Doc Text:
Neutron HA backup instances have the same IP/MAC addresses as the master instance and they have IPv6 forwarding enabled by default. This causes them to subscribe to different multicast groups and they may respond to queries coming from the external network. This traffic will make the upstream switch learn the MAC address on a different port, disrupting existing traffic to the master instance. Disable IPv6 forwarding on backup instances and restore it on failover. Traffic will not leave the backup instance to the upstream switch and will not disrupting existing connections with the master instance.
Clone Of: 1426735
Environment:
Last Closed: 2017-09-13 21:47:02 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Launchpad 1669765 0 None None None 2017-07-10 10:34:12 UTC
OpenStack gerrit 442518 0 None None None 2017-07-10 10:34:12 UTC
OpenStack gerrit 460924 0 None None None 2017-07-10 10:34:12 UTC
Red Hat Product Errata RHBA-2017:2714 0 normal SHIPPED_LIVE openstack-neutron bug fix advisory 2017-09-14 01:45:43 UTC

Comment 5 errata-xmlrpc 2017-09-13 21:47:02 UTC 
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-2017:2714
Note You need to log in before you can comment on or make changes to this bug.