Solved: MGCP gateway SRST with dual LAN attachment

guy.richard · ‎05-11-2010

Hi

I have to configure L3 redundancy between a 3825 MGCP Gateway which also is the SRST Gateway and a L3 LAN at the distribution layer.

The customer wants to use OSPF. Ok I need 2 different /30 subnets on the 3825 interfaces plus a loop-back interface with a /32 network all advertised by OSPF.

For MGCP I can bind control and media flows to the loop-back.

For SRST I can configure the loop-back interface addresse as source of SRST.

Does anyone use such a configuration ?

Is it supported by Cisco ?

Usually I use bridging with irb and a bvi interface but my customer does not want to rely on Spanning-Tree.

Kind Regards

Guy

William Bell · ‎05-11-2010

Sure. You can bind MGCP control/media to loopback. You can configure SRST to use the loopback. if you have conference/transcoding/etc. media resources, you can bind SCCP to loopback. You can also bind the H323 call processing to the loopback if you had a need to allow your SRST device to communicate with another router.

All of this is supported by Cisco and I use it on every deployment I work on because redundancy is important

I assume from your post that you know how to bind the call control and media channels to your loopback.

HTH.

Regards,

Bill

Please remember to rate helpful posts.

HTH -Bill (b) http://ucguerrilla.com (t) @ucguerrilla

Please remember to rate helpful responses and identify

View solution in original post

William Bell · ‎05-11-2010