Public bug reported:
neutron routers can be disabled, thereby basically removing them from their l3
agents.
They will no longer accept, process or forward packets once they are disabled.
Currently if a router is set to disabled the dragents still advertise the
routes to its networks and floating ips.
Even though the router is actually not active and can not handle these packets.
This causes the upstream routers to still know these routes and try to forward
packets to this disabled router.
For example for internet network this causes unneeded traffic on the upstream
routers and the network nodes.
They will receive traffic that they forward to the network node which then will
drop this traffic as the router is gone.
It would be ideal if routes for disabled routers are no longer advertised by
the dragents.
This would cause upstream routers to loose the routes to these network/fips and
allow them to drop the traffic as early as possible.
** Affects: neutron
Importance: Undecided
Assignee: Felix Huettner (felix.huettner)
Status: New
** Changed in: neutron
Assignee: (unassigned) => Felix Huettner (felix.huettner)
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https://bugs.launchpad.net/bugs/2018737
Title:
neutron-dynamic-routing announces routes for disabled routers
Status in neutron:
New
Bug description:
neutron routers can be disabled, thereby basically removing them from their
l3 agents.
They will no longer accept, process or forward packets once they are disabled.
Currently if a router is set to disabled the dragents still advertise the
routes to its networks and floating ips.
Even though the router is actually not active and can not handle these
packets.
This causes the upstream routers to still know these routes and try to
forward packets to this disabled router.
For example for internet network this causes unneeded traffic on the upstream
routers and the network nodes.
They will receive traffic that they forward to the network node which then
will drop this traffic as the router is gone.
It would be ideal if routes for disabled routers are no longer advertised by
the dragents.
This would cause upstream routers to loose the routes to these network/fips
and allow them to drop the traffic as early as possible.
To manage notifications about this bug go to:
https://bugs.launchpad.net/neutron/+bug/2018737/+subscriptions
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