It's a configuration command under the T1 controller.
i.e.;
config t
controller t1 slot/port
loopback {diagnostic |local {payload | line}|remote {iboc |esf {payload |
line}}
DaL
-----Original Message-----
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
Bullock, Jason (1125)
Sent: Monday, March 19, 2001 6:05 PM
To: '[EMAIL PROTECTED] '
Subject: RE: loopback the WIC card, how is it done?
Hey Listers.
I was thinking about this cool thing one of the cisco TAC engineers did when
helping me troubleshoot a tricky network problem a few months ago. They
looped up my serial interface on a 2600 to verify the WIC card was working
properly, and that the attached CSU was not faulty. They configured the WIC
interface to show up and up , even though there T1 was down.
The problem is , I can not remember the command sets that were run to make
this work. ! Anyone know this one? ugh.
jason
-----Original Message-----
From: Tony van Ree
To: David A. Lauer; [EMAIL PROTECTED]
Sent: 3/19/2001 4:17 PM
Subject: RE: loopback test
Hi,
If you want to check your protocol stack you should be able to ping
yourself, check you ip interfaces and/or check your route table
(assuming IP is used). There are a number of utilities that check
network cards.
Teunis
Hobart, Tasmania
Australia
On Monday, March 19, 2001 at 07:56:26 AM, David A. Lauer wrote:
>
> Why would you need to? Do you have a link light at the interface port
and
> the hub/switch? Does the interface show Interface UP line Protocol
up?
>
> Cat 5 ethernet uses the 568B pinout for the RJ45 connectors. You
could
> create loopback plug by cross-connecting pins 1-3 and 2-6.
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of
> zd z
> Sent: Monday, March 19, 2001 4:26 AM
> To: [EMAIL PROTECTED]
> Subject: loopback test
>
>
> Is there any one knows how to do the
> loopback test on ethernet or fastethernet port ?
>
>
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