cancel
Showing results for 
Search instead for 
Did you mean: 
cancel
496
Views
0
Helpful
4
Replies

I hate MGCP - Please advise

nellocon4
Level 1
Level 1

Hi Folks -

I have had this issue before and its back to haunt me again...

I had a new gateway up and registered to the call manager yesterday and the PRI was registered and calls were working correctly. Then this morning we needed to swap out the cable for the PRI as the original was damaged. Once we pulled it out and put it back in it the PRI is now showing as unregistered in the call manager...?

What have I tried:

1. no mgcp

    mgcp

2. remove the isdn bind-l3 from serial interface

3. shutdown controller and bring back up.

4. removed and re-added the command:

   ccm-manager config

5. I removed and re-added the MGCP bind control source -interface command.

Nothing has worked and the PRI remains unregistered. A show CCm-manager gives:

MGCP Domain Name: <xxx>

Priority        Status                   Host

============================================================

Primary         Registering with CM      <xxx>

First Backup    Backup Ready             <xxx>

Second Backup   None

Current active Call Manager:    None

Backhaul/Redundant link port:   2428

Failover Interval:              30 seconds

Keepalive Interval:             15 seconds

Last keepalive sent:            10:54:00 gmt Oct 6 2011 (elapsed time: 01:39:42)

Last MGCP traffic time:         12:33:36 gmt Oct 6 2011 (elapsed time: 00:00:06)

Last failover time:             12:33:06 gmt Oct 6 2011 from (10.196.0.6)

Last switchback time:           12:33:36 gmt Oct 6 2011 from (10.196.0.5)

Switchback mode:                Graceful

MGCP Fallback mode:             Enabled/ON

Last MGCP Fallback start time:  11:22:23 gmt Oct 6 2011

Last MGCP Fallback end time:    11:21:28 gmt Oct 6 2011

MGCP Download Tones:            Disabled

TFTP retry count to shut Ports: 2

Backhaul Link info:

    Link Protocol:      TCP

    Remote Port Number: 2428

    Remote IP Address:  10.196.0.6

    Current Link State: OPEN

    Statistics:

        Packets recvd:   0

        Recv failures:   0

        Packets xmitted: 0

        Xmit failures:   0

    PRI Ports being backhauled:

        Slot 1, port 1

FAX mode: disable

Configuration Error History:

4 Replies 4

Adam Thompson
Level 4
Level 4

What is the output of 'show isdn status'? Have you tried any MGCP debugs (ie debug mgcp packets, etc...) ?

try the following:

     -no mgcp

     -remove all mgcp bind commands

     -mgcp

I know you stated you did both of these steps, but a lot of times it depends on the order in which they were done.

If that does not work, can you post your MGCP config?

HTH

Adam

Tapan Dutt
Cisco Employee
Cisco Employee

Hi

Is layer 1 fine?

Check show isdn status.

It should show layer 1 status active.

Tapan

Aaron Harrison
VIP Alumni
VIP Alumni

Hi

Most common error with MGCP is the gateway having a domain name assigned after deployment - this changes the MGCP Domain Name from hostname, to hostname.domain.etc (where you have it blanked out)... the CUCM needs updating to match.

Aaron

Aaron Please remember to rate helpful posts to identify useful responses, and mark 'Answered' if appropriate!

Check also the isdn bind-L3 commend under the serial, there is an issue where-do not ask me why or how , disappears

Sent from Cisco Technical Support iPad App