Bug closed due to lack of activity, please feel free to reopen if
needed.
** Changed in: neutron
Status: Confirmed => Won't Fix
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https://bugs.launchpad.net/bugs/1907548
Title:
vlan-transparency not working with linuxbridge ml2 agent
Status in neutron:
Won't Fix
Bug description:
After vlan-transparency (VT) support has been added for OVN ML2 agent,
we are creating some neutron tempest tests to cover this
functionality.
Since linuxbridge (LB) agent supports VT, we intended to run those new
tests on the master LB job, but they fail.
We configured the LB agent with VT support. Devstack configures ml2
mechanism_drivers to openvswitch and linuxbridge, so we had to set it to LB
only.
https://review.opendev.org/c/openstack/neutron-tempest-plugin/+/765002/7/zuul.d/master_jobs.yaml
New VT tests failed:
2020-12-09 13:05:37.184727 | controller | {0}
neutron_tempest_plugin.scenario.test_vlan_transparency.VlanTransparencyTest.test_vlan_transparent_allowed_address_pairs
[310.736639s] ... FAILED
2020-12-09 13:05:37.185480 | controller | Details: {'code': 500, 'created':
'2020-12-09T13:05:35Z', 'message': 'Build of instance
e0513133-3077-420e-b439-e0f61ff0fbad aborted: Failed to allocate the
network(s), not rescheduling.'}
https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/job-output.txt#25261
nova-compute logs show errors creating instances:
Dec 09 13:05:33.788419 ubuntu-focal-rax-iad-0022130345 nova-compute[73187]:
ERROR nova.compute.manager [None req-c4f267db-cf04-4597-bbcc-e95ce67db222
tempest-VlanTransparencyTest-301394299 tempest-VlanTransparencyTest-301394299]
[instance: e0513133-3077-420e-b439-e0f61ff0fbad] Instance failed to spawn:
nova.exception.VirtualInterfaceCreateException: Virtual Interface creation
failed
https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-n-cpu.txt?severity=4
neutron-linuxbridge-agent shows some errors too:
Dec 09 12:27:01.234687 ubuntu-focal-rax-iad-0022130345
neutron-linuxbridge-agent[66293]: ERROR neutron.agent.linux.utils [None
req-ddbe0c50-3fb7-4834-9404-f6a8988be69b None None] Exit code: 255; Cmd:
['sysctl', '-w', 'net.ipv6.conf.vxlan-3.disable_ipv6=1']; Stdin: ; Stdout: ;
Stderr: sysctl: cannot stat /proc/sys/net/ipv6/conf/vxlan-3/disable_ipv6: No
such file or directory
https://zuul.opendev.org/t/openstack/build/d4f0a6a2a3824705886536e5d900a49e/log/controller/logs/screen-q-agt.txt?severity=4
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