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How to use vlan in public network

asked 2013-10-03 08:52:02 -0500

Grebennikov gravatar image

I have an external physical network which is used as public network. Network admins gave me one vlan (say 10). While creating external bridge I created its internal tagged interface and it is able to reach other devices in this network. Nonetheless, when neutron creates its external interfaces in the bridge, they appear untagged, so they cannot reach others. What should I do so that neutron forced to create routers' external interfaces with tags? Thanks in advance.

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Is this the ovs plugin? Try creating a subinterface with vlan id 10 from the main interface, and add it to bridge br-ex instead of the main interface.

darragh-oreilly gravatar imagedarragh-oreilly ( 2013-10-03 09:21:47 -0500 )edit

Unfortunately I cannot do that because I have another vlans in the same bridge for management and storage networks. Any other opinions?

Grebennikov gravatar imageGrebennikov ( 2013-10-03 13:45:03 -0500 )edit

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answered 2013-10-04 03:49:07 -0500

darragh-oreilly gravatar image

updated 2013-10-04 04:02:27 -0500

According to this bug report it is possible to use a provider network as an external network for uplinking L3-agent Quantum routers (setting their external gateway). So when the provider network type is VLAN, the plugin-agent will tag the qg-xxxxxx-xx port with the VLAN id of the provider network.

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Asked: 2013-10-03 08:52:02 -0500

Seen: 677 times

Last updated: Oct 04 '13