[cisco-voip] SRST and dial peers and trunk groups and CallManager MGCP config downloads

[Jason Aarons (US)]

Some ends users struggle with dial-peers and routers.

If you've never touched a router than MGCP is for you (as you will have to touch the router less), if you're a CCNP or smart you can have dial peers.

From: cisco-voip-bounces at puck.nether.net [mailto:cisco-voip-bounces at puck.nether.net] On Behalf Of Tim Smith
Sent: Friday, October 08, 2010 7:38 PM
To: Lelio Fulgenzi
Cc: cisco-voip at puck.nether.net
Subject: Re: [cisco-voip] SRST and dial peers and trunk groups and CallManager MGCP config downloads

This is a nice reason for using h323 or even sip now and avoiding ccm manager config and mgcp.

It has bugged us here in Australia for years in partial E1 configs.

Also hate the lack of call preservation in a fallback!

Cheers,

Tim

Sent from my iPhone

On 09/10/2010, at 2:12, Lelio Fulgenzi <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>> wrote:
I'm thinking that might be the way to go. remove the ccm-manager config command once i've downloaded the config. If I make any changes on CallManager, then I re-issue the ccm-manager config command and reapply the trunk group settings on each serial interface.


---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)

________________________________
From: "VoIP Guy" <ciscovoiper1 at gmail.com<mailto:ciscovoiper1 at gmail.com>>
To: "Matthew Loraditch" <MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>>
Cc: cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>, lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>
Sent: Friday, October 8, 2010 10:48:23 AM
Subject: Re: [cisco-voip] SRST and dial peers and trunk groups and CallManager MGCP config downloads

It might just be worth disabling the command ccm-manager config which means that your config should not be overwritten.
On Fri, Oct 8, 2010 at 3:32 PM, Matthew Loraditch <MLoraditch at heliontechnologies.com<mailto:MLoraditch at heliontechnologies.com>> wrote:
I don't think you have a choice. The serial port configs are controlled by ccm in mgcp mode its always going to overwrite anything not from ccm when it resets.

Sent from my Android phone using TouchDown (www.nitrodesk.com<http://www.nitrodesk.com>)


-----Original Message-----
From: Lelio Fulgenzi [lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>]
Received: 10/8/10 10:10 AM
To: voyp list [cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>]
Subject: [cisco-voip] SRST and dial peers and trunk groups and CallManager MGCP config downloads
So here's my scenario:

 *   3845/3945 router with two or more PRIs
 *   PRIs are in MGCP mode using "ccm-manager config" to download configs
 *   router acts as SRST so MGCP gateways go into H323 fall back
I had tried configuring trunk groups to use with the dial peers so i wouldn't have to duplicate them for each PRI. This worked until the second SRST trigger. So the behaviour was this:

 *   configure trunk group membership on serial interface as instructed by TAC
 *   configure dial peers to point to trunk group
 *   trigger SRST, make calls, calls work
 *   revert back to normal operation
 *   router downloads MGCP config from CallManager, effectively wiping out the trunk group membership on serial interfaces
 *   trigger SRST, make calls, calls fail because there are no trunk group members
How are others handling this scenario, i.e. you are using MGCP with "ccm-manager config" command and SRST and trunk groups?

Why wouldn't CCM allow for a trunk group membership command? I even checked on version 7.1 and there's nothing there. :(

---
Lelio Fulgenzi, B.A.
Senior Analyst (CCS) * University of Guelph * Guelph, Ontario N1G 2W1
(519) 824-4120 x56354 (519) 767-1060 FAX (JNHN)
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Cooking with unix is easy. You just sed it and forget it.
                              - LFJ (with apologies to Mr. Popeil)


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