Open Stack

Hi Geeks,

I have deployed openstack OCATA. I have created a private network connect
it with provider network using router. Everything was working fine without
pinging instance from controller. But later all of sudden a link between
router and private network disappear. I try to add interface again but it
prmpt the following error.

Failed to add_interface: Bad router request: Router already has a port on
subnet 162233cb-5280-4d00-b8e0-0e85bbe3d7a9. Neutron server returns
request_ids: ['req-04888d6d-a68f-482e-9bd0-a20f62628f72']

What problem can be and how to fix it.

Thanks
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