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Neutron network connection with bypass network node

asked 2014-08-11 13:37:29 -0500

fgorbat gravatar image

updated 2014-08-11 15:40:56 -0500

Hello experts,

Our system:

Neutron Configuration consist controller, network and several compute nodes.

Network Connections

• Controller - Management

• Network – Management, Tunneling, External-Public

• Compute – Management, Tunneling


By taking in consideration performance and latency aspects, is there any way to connect instance to another external-public network by passing network node and use the compute direct attached network interface?

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Thank you "T u l" !

In general I'm looking for more generic solution. ;)

fgorbat gravatar imagefgorbat ( 2014-08-11 19:06:27 -0500 )edit

2 answers

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answered 2014-08-12 02:21:47 -0500

foexle gravatar image

Hi, you can use network provider :


So you can't declare a second external_network but a normal network with floating IP's instead of fixed IP ranges. This network you must combine with a network bridge with your WAN interface.

Look here: Doc

Cheers Heiko

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Thank you, Heiko!

fgorbat gravatar imagefgorbat ( 2014-08-13 10:36:45 -0500 )edit

answered 2014-08-11 15:59:46 -0500

T u l gravatar image

(non-expert) Probably yes, but it might be a "hack" which has nothing to do with openstack. You need to bridge the VM's network interface with your compute node's "another external-public network", for example, with help of openvswitch. But what I wrote is probably a bad idea

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Asked: 2014-08-11 13:37:29 -0500

Seen: 417 times

Last updated: Aug 12 '14