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Use case for multiple subnets on a single neutron network

asked 2013-08-13 11:09:00 -0500

lorin gravatar image

In all of the neutron examples I have seen, there is only one neutron subnet associated with a neutron network. Are there any practical use cases for associating multiple neutron subnets with a single neutron network?

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I can't think of one. I just tried booting a VM with a port with two ips, but the security group rules will only allow one to be useful. ie packets from 10.0.34.4 will be dropped here: -A quantum-openvswi-oc5b4f6cb-2 ! -s 10.0.33.3/32 -j DROP -A quantum-openvswi-oc5b4f6cb-2 ! -s 10.0.34.4/32 -j DROP

darragh-oreilly gravatar imagedarragh-oreilly ( 2013-08-14 15:03:31 -0500 )edit
darragh-oreilly gravatar imagedarragh-oreilly ( 2013-09-04 02:09:38 -0500 )edit

If a single OpenStack network (created using net-create) hosts two subnets (using subnet-create and the network id), how can we ensure a VM comes up with two ports with one on each subnet? Is the standard rule of thumb to use one network per subnet?

arunuke gravatar imagearunuke ( 2014-04-02 16:56:54 -0500 )edit

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answered 2013-08-19 04:42:33 -0500

darragh-oreilly gravatar image

I think this will be useful for dual-stack IPv4 + IPv6 instances, where you want to control the v4 and v6 state of each interface on a network.

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answered 2014-11-18 21:52:19 -0500

keky gravatar image

did u solved the problem´╝čI am also stuck in this problem,need help

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Asked: 2013-08-13 11:09:00 -0500

Seen: 1,538 times

Last updated: Nov 18 '14