Hi,
When Quantum is using OVS and namespaces there are problems when namespace is being deleted. More specifically this is when a default gateway is assigned to an interface that is used by the OVS. A simple way of reproducing this is:

sudo ip netns exec<name>  ip route del ...
sudo ip netns exec<name>  ovs-vsctl del-port...

From this moment on one is not able to access the namespace. The problem does not occur when the traditional linux bridges are used.

Has anyone encountered this before?

Thanks
Gary
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