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Home > Archive > Voice over IP Cisco > April 2006 > how to do a config loopback
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how to do a config loopback
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| James Grace 2006-04-27, 6:47 am |
| I have a remote site that is down. This is a cme. Im able to get into the
gw, and I see that the t1 controller is in a down state. Is the way for me
to determine if the card is bad or good by doing some type of loopback
config on the gw. I am remote to the gw. I think it's a cable issue, but
want to be sure it not a dead t1 controller card
James D. Grace
CCNP CCNA MCSE MCDBA
Sr. System Engineer / Professional Svc.
Digitel Corporation
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| Justin Steinberg 2006-04-27, 6:47 am |
| James,
To my knowledge to can not remotely test for hardware problems using only
software.
You can however use a hardware loopback plug to test the router/CSU.
You will need to have someone connect a T1 loopback cable to your CSU and
reconfigure that controller as a channel group, configure HDLC, configure an
IP address on the interface and then run various ping tests. All of this is
detailed in this link:
http://www.cisco.com/warp/public/471/hard_loopback.html
Justin
On 4/26/06, James Grace <jgrace@digitelusa.net> wrote:
>
> I have a remote site that is down. This is a cme. Im able to get into
> the gw, and I see that the t1 controller is in a down state. Is the way for
> me to determine if the card is bad or good by doing some type of loopback
> config on the gw. I am remote to the gw. I think it's a cable issue, but
> want to be sure it not a dead t1 controller card
>
>
>
>
>
> James D. Grace
>
> *CCNP CCNA MCSE MCDBA*
>
> Sr. System Engineer / Professional Svc.
>
> *Digitel Corporation*
>
>
>
> ________________________________________
_______
> cisco-voip mailing list
> cisco-voip@puck.nether.net
> https://puck.nether.net/mailman/listinfo/cisco-voip
>
>
>
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| Fedorov, Konstantin 2006-04-27, 6:47 am |
| Hi,
In the controller configuration - command
loopback local.
-----------------------
Sincerely Yours,
Konstantin Fedorov
_____
From: cisco-voip-bounces@puck.nether.net
[mailto:cisco-voip-bounces@puck.nether.net] On Behalf Of Justin
Steinberg
Sent: Wednesday, April 26, 2006 6:06 PM
To: James Grace
Cc: cisco-voip@puck.nether.net
Subject: Re: [cisco-voip] how to do a config loopback
James,
To my knowledge to can not remotely test for hardware problems using
only software.
You can however use a hardware loopback plug to test the router/CSU.
You will need to have someone connect a T1 loopback cable to your CSU
and reconfigure that controller as a channel group, configure HDLC,
configure an IP address on the interface and then run various ping
tests. All of this is detailed in this link:
http://www.cisco.com/warp/public/471/hard_loopback.html
Justin
On 4/26/06, James Grace <jgrace@digitelusa.net> wrote:
I have a remote site that is down. This is a cme. Im able to get into
the gw, and I see that the t1 controller is in a down state. Is the way
for me to determine if the card is bad or good by doing some type of
loopback config on the gw. I am remote to the gw. I think it's a cable
issue, but want to be sure it not a dead t1 controller card
James D. Grace
CCNP CCNA MCSE MCDBA
Sr. System Engineer / Professional Svc.
Digitel Corporation
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cisco-voip mailing list
cisco-voip@puck.nether.net
https://puck.nether.net/mailman/listinfo/cisco-voip
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