Bug 1469048
| Summary: | Backup HA router sending traffic, traffic from switch interrupted | ||
|---|---|---|---|
| Product: | Red Hat OpenStack | Reporter: | Daniel Alvarez Sanchez <dalvarez> |
| Component: | openstack-neutron | Assignee: | Daniel Alvarez Sanchez <dalvarez> |
| Status: | CLOSED ERRATA | QA Contact: | Roee Agiman <ragiman> |
| Severity: | high | Docs Contact: | |
| Priority: | high | ||
| Version: | 10.0 (Newton) | CC: | aasmith, amuller, atelang, bfournie, chrisw, dalvarez, jlibosva, nyechiel, oblaut, samccann, srevivo, tfreger |
| Target Milestone: | z2 | Keywords: | Triaged, ZStream |
| Target Release: | 11.0 (Ocata) | ||
| Hardware: | x86_64 | ||
| OS: | Linux | ||
| Whiteboard: | |||
| 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.
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Story Points: | --- |
| Clone Of: | 1426735 | Environment: | |
| Last Closed: | 2017-09-13 21:47:02 UTC | Type: | Bug |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 1426735, 1469051 | ||
| Bug Blocks: | |||
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Comment 5
errata-xmlrpc
2017-09-13 21:47:02 UTC
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