[cisco-voip] busting SBC

[Wes Sisk]

make yourself a t1 loopback plug and plug in, make sure your interface 
comes up/up.

Then re-connect the t1 from SBC.  give it a min and do 'show cont t1'  
it will likely be in red alarm.  Search that Cisco.com.

Tell them you looped it up and your interface came up.

If your interface does not come up with the loopback plug you may have a 
bad module, time for RMA.

/Wes

IT wrote:

>Hey All,
>
>So I have a 2801 gateway device that has been driving me nuts. Ive got a
>point-to-point T1 to HQ for data and CM traffic, and a T1 PRI from SBC
>for outbound calling.  Earlier today, calls got cut off, and I saw this
>in my log:
>Log Buffer (4096 bytes):
>ial0/2/0:22, changed state to down
>Jun  2 18:24:11: %LINK-5-CHANGED: Interface Serial0/2/0:23, changed
>state to adm
>inistratively down
>Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state
>to up
>Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:0, changed state
>to down
>Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:1, changed state
>to down
>.................yada yada yada
>Jun  2 18:24:16: %LINK-3-UPDOWN: Interface Serial0/2/0:22, changed state
>to down
>Jun  2 18:56:20: %LINK-5-CHANGED: Interface Serial0/2/0:23, changed
>state to adm
>inistratively down
>Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:23, changed state
>to up
>Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:0, changed state
>to down
>Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:1, changed state
>to down
>...............yada yada yada................
>Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:21, changed state
>to down
>Jun  2 18:56:23: %LINK-3-UPDOWN: Interface Serial0/2/0:22, changed state
>to down
>
>
>Now, an hour later, every time I call any of the inbound lines, I get a
>busy signal, and when I try to dial out, I get busy. What IOS commands
>can I issue on the 2801 to show that this is an SBC problem, not an
>issue with my config.  I am sick of getting blamed for these issues.
>HELP!
>
>-Avidan
>
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