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Does Neutron network node have fip namespace?

asked 2015-08-06 14:17:09 -0500

Nodir gravatar image

updated 2015-08-06 14:17:44 -0500

Hello,

I have 4 node Kilo installation with DVR and OVS. When I assign floating IP to VMs, fip namespace gets created on the compute host where VM is hosted. This consistently happens on all compute nodes as expected, except to the one with neutron server (network node). That host does have snat namespace, but not fip namespace. Is this expected?

The reason I am interested is that VMs hosted in the network node do not have working floating IP. VM successfully gets FIP assigned, but the VM is not reachable (ping, ssh) via floating IP. I do have security group rules setup properly. VMs on other nodes with the same security group are ping/ssh'able. I'd like to know if absence of fip namespace on the networking node is a root cause, or is it expected networking node to have only snat namespace, but not fip namespace.

Thanks,

Nodir

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answered 2015-08-07 13:57:58 -0500

Nodir gravatar image

I am answering question by myself since I reinstalled my OpenStack and verified if FIP namespace gets created on the network node. The answer is: yes, the network node needs FIP namespace. If it does not, you will face the problems as above, i.e., VMs with the floating IP assigned to the network host will not have working FIP.

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Asked: 2015-08-06 14:17:09 -0500

Seen: 520 times

Last updated: Aug 07 '15