[cisco-voip] T1 PRI configuration on 2921 not matching startup config

[Lelio Fulgenzi]

That was definitely one issue. I was pretty sure I entered that command manually, but apparently not. So that's why the last one did not come up.

Still very weird. I had always assumed that the router asked for the configuration for enabled ports only.

Sent from my iPhone

On Oct 2, 2017, at 6:24 PM, Evgeny Izetov <eizetov at gmail.com<mailto:eizetov at gmail.com>> wrote:

I wonder if you only had enough DSPs for those 2 and 1/3 PRIs.

On Oct 2, 2017 4:02 PM, "Lelio Fulgenzi" <lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>> wrote:

Well, apparently, CUCM enabling of ports overrides the router configuration.

I did have all four ports configured. After deleting those two ports, the running now matches the startup.

This is very weird. Is there a configuration command that says only download configuration for the ports I’ve enabled?



---
Lelio Fulgenzi, B.A.
Senior Analyst, Network Infrastructure
Computing and Communications Services (CCS)
University of Guelph

519-824-4120 Ext 56354<tel:(519)%20824-4120>
lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>
www.uoguelph.ca/ccs<http://www.uoguelph.ca/ccs>
Room 037, Animal Science and Nutrition Building
Guelph, Ontario, N1G 2W1

From: cisco-voip [mailto:cisco-voip-bounces at puck.nether.net<mailto:cisco-voip-bounces at puck.nether.net>] On Behalf Of Lelio Fulgenzi
Sent: Monday, October 02, 2017 2:29 PM
To: voyp list, cisco-voip (cisco-voip at puck.nether.net<mailto:cisco-voip at puck.nether.net>)
Subject: [cisco-voip] T1 PRI configuration on 2921 not matching startup config


OK – Having a weird issue. I was pretty sure that the router config took precedence over CUCM (with respect to enabling ports).

I’ve got four of  the four ports configured on CUCM. So not sure why three are being configured on the router.

Very strange!

My startup looks something like this:

controller T1 0/0/0
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
controller T1 0/0/1
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
controller T1 0/0/2
shutdown
cablelength long 0db
!
controller T1 0/0/3
shutdown
cablelength long 0db
!
<snip>
!
interface Serial0/0/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/0/1:23
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
isdn bchan-number-order ascending
no cdp enable
<snip>
voice-port 0/0/0:23
echo-cancel coverage 64
!
voice-port 0/0/1:23
!



But after a reload, my running config looks something like this:

controller T1 0/0/0
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
controller T1 0/0/1
cablelength long 0db
pri-group timeslots 1-24 service mgcp
!
controller T1 0/0/2
cablelength long 0db
pri-group timeslots 1-8,24 service mgcp
!
controller T1 0/0/3
cablelength long 0db
!
<snip>
interface Serial0/0/0:23
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/0/1:23
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn protocol-emulate network
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
interface Serial0/0/2:23
no ip address
encapsulation hdlc
isdn switch-type primary-dms100
isdn incoming-voice voice
isdn bind-l3 ccm-manager
no cdp enable
!
<snip>
!
voice-port 0/0/0:23
echo-cancel coverage 64
!
voice-port 0/0/1:23
echo-cancel coverage 64
!
voice-port 0/0/2:23
echo-cancel coverage 64

---
Lelio Fulgenzi, B.A.
Senior Analyst, Network Infrastructure
Computing and Communications Services (CCS)
University of Guelph

519-824-4120 Ext 56354<tel:(519)%20824-4120>
lelio at uoguelph.ca<mailto:lelio at uoguelph.ca>
www.uoguelph.ca/ccs<http://www.uoguelph.ca/ccs>
Room 037, Animal Science and Nutrition Building
Guelph, Ontario, N1G 2W1


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