[cisco-voip] isdn bind-l3 ccm-manager

[Steve G]

The h323 commands were an oversite on my part.  I thouhgt that we had some
fxo ports in h323 used for paging, but it clearly does not.  That is why I
have the h323 command under lo0.  I do have this scenario on other installs
that I have done and have not ran into any problems, but that was clearly an
oversite on my part.

The router was indeed in fallback mode as it lost it's WAN connectivity when
it came back up (we took out the WAN WICs) so yes, that makes sense.  We
didn't make the changes to the config until after it came backup without
connectivity to CCM, and of coarse saved the config when it was in fallback
mode.  doh, I didn't know that was bad.

There is one dial-peer with the PRI voice-port and mgcpapp....
dial-peer voice 2 pots
 tone ringback alert-no-PI
 description Necessary dial-peer for MGCP
 service mgcpapp
 fax rate disable
 direct-inward-dial
 port 0/2/0:23

Here is the controller and serial int config prior to change

controller T1 0/2/0
 framing esf
 linecode b8zs
 cablelength short 133
 pri-group timeslots 1-24 service mgcp
 description PRI

interface Serial0/2/0:23
 no ip address
 no logging event link-status
 isdn switch-type primary-ni
 isdn incoming-voice voice
 isdn bind-l3 ccm-manager
 no cdp enable



On 1/17/07, Erick Bergquist <erickbe at yahoo.com> wrote:
>
>  Was the router maybe in fallback mode when you were making changes and
> maybe saved the new config? Did MGCP lose registration with CCM and/or the
> T1 PRIs bounce. Why do you h323 command under loopback if it is a MGCP
> gateway?
>
>  Have seen this command vanish from config when T1 flapped, etc my self
> many times across several IOS versions. There are some bugs on it, but also
> may be due to way things are configured or what happened.
>
> Can you provide some more details on what the config was like before any
> changes?  Have any pots dial-peers with the PRI port under them and
> application/service mgcpapp on them?
>
>
>  ----- Original Message ----
> From: Steve G <smgustafson at gmail.com>
> To: ciscovoip <cisco-voip at puck.nether.net>
> Sent: Wednesday, January 17, 2007 1:27:35 PM
> Subject: [cisco-voip] isdn bind-l3 ccm-manager
>
> Group,
>     I was making a network change last night and had an odd result.  I had
> a 2821 with an MGCP PRI and 2 WIC cards with PtP T1s.  I took the WIC cards
> out and installed them in a 1760 to separate the WAN function from the VG
> functions.  After taking out the 2 WICs I applied the following changes to
> the 2821 VG....
>
> *IP addresses taken out to maintain some anonymity*
> !
> logging buffered 64000 debugging
> !
> !
> no ip dhcp use vrf connected
> no ip dhcp excluded-address x.x.x.x
> no ip dhcp excluded-address x.x.x.x
> !
> no ip dhcp pool techs-only
> !
> no ip dhcp pool PHONES
> !
> !
> !
> !
> !
> !
> !
> interface Loopback0
>  description H323/MOH/Multicast
>  ip address xxx.xxx.xxx.xxx 255.255.255.255
>
>  !!!!!!!!!!!!!!!!!!!!!!!!!!! Add these commands, not present prior to
> change
>  h323-gateway voip interface
>  h323-gateway voip bind srcaddr xxx.xxx.xxx.xxx
> !
> interface GigabitEthernet0/0.100
>  !!!!!!!!!!!!!!!!Change IP to non-default gateway
>  ip address x.x.x.x 255.255.255.192
>
> !
> no interface GigabitEthernet0/0.200
>
> !
> interface GigabitEthernet0/1
> no ip address
> shut
>
> !
>
> !
> router eigrp 1
>  no network xxx.xxx.xxx.xxx 0.0.0.3
>  no network xxx.xxx.xxx.xxx 0.0.0.3
>  no network xxx.xxx.xxx.xxx 0.0.0.255
>  no network xxx.xxx.xxx.xxx 0.0.0.15
>
> no ip route 0.0.0.0 0.0.0.0 YYY.yyy.yyy.yyy
> ip route 0.0.0.0 0.0.0.0 XXX.XXX.XXX.XXX
>
> !
> dspfarm profile 20 transcode
> !!!!!!!!!!!!!!!!!!!!!
>  no shut
> !
> !
>
> end
>
> wr mem
>
> As you can see I did not take out the "isdn bind-l3 ccm-manager" command
> from the ser0/2/0:23 interface.  The only thing that I can think may have
> done this was the Lo0 commands that I added for h323 binding.
>
> Anyone have an answer as to why this would have happened and made for an
> uneasy change?
>
> Steve
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> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
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