From: Kaiser Anwar (kaiseranwar@sbcglobal.net)
Date: Sun Apr 04 2004 - 18:10:36 GMT-3
Well I had SBC replaced a smart jack on one side. I am still having the same
issue. I have tried a new T1 WIC-1DSU-T1 and a new router.
It is very strange. SBC is saying that circuit is now fine on both sides. I
am clueless. Also do I need this command service-module t1 timeslots 1-24
And also do we need the clock command. Anything else I could try. I have
tried HDLC and ppp, but nothing works. One thing I am not sure is that
serial interface is generating lot of input errors, as soon as I clear
counters I get them again any idea what is causing that. Thanks in advance
for the help.
Kaiser Anwar
Network engineer
-----Original Message-----
From: Moffat, Ed [mailto:EMoffat@fsci.com]
Sent: Saturday, April 03, 2004 9:59 PM
To: 'Kaiser Anwar'; 'Ccielab@Groupstudy. Com (E-mail)'
Subject: RE: line protocol is down
I had a similar strange problem occur that ended up being an incompatible
smart jack card.
I was using a 2621XM w/ WIC-1DSU-T1 card.
Three identically configured circuits.
On one circuit I was getting massive errors. All other circuits were fine.
If I connected either of the other two T1s to the WIC-1DSU card the lines
worked fine.
If I replaced the WIC-1DSU the problem circuit still had problems and the
good circuits still worked.
If I connected to trouble circuit to a different router with WIC-1DSU it
still had problems.
Looks like a carrier/circuit problem . . . BUT
If I connected an external DSU to a WIC-1T card the trouble circuit was
clear.
Also, a hard loop all the way to the end of the cable I plugged into the
router showed clear.
From my side, it looked like a telco problem. The carrier sent a tech on
site and tested the circuit end-to-end and found no problems so they thought
it was a problem with my equipment.
After a lot of pointing back and forth, it was finally noticed that the
smart jack for the new circuit was a different model than the other two
(though the only way to really tell was by the model number).
The carrier replaced it and everything worked fine.
I could have given up and gone with the WIC-1T with external DSU solution
but I knew that there was something different with the circuit that was
causing the problem so I escalated it as far as I could. It took a while to
complete but it kinda felt good to know I was right (and so was the telco)
Subsequently I reported the case to Cisco and the NIU manufacturer. Of
course. I can't find the information on the NIU to pass on but thought it
was worthwhile to mention it so if others out there experience a similar
problem.
-Ed-
-----Original Message-----
From: Kaiser Anwar [mailto:kaiseranwar@sbcglobal.net]
Sent: Saturday, April 03, 2004 6:23 PM
To: 'Mike Dickson'; 'Ccielab@Groupstudy. Com (E-mail)'
Subject: RE: line protocol is down
After spending five hours with trying different things finally sbc admitted
that there is a problem with smart jack and they will send out a technician.
Thanks to all for their help. Just one thing though I was getting lot of
input errors and interface resets I don't know what was causing that. Thanks
Kaiser Anwar
Network engineer
Cell: (847) 409-7261
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Mike Dickson
Sent: Saturday, April 03, 2004 5:46 PM
To: Ccielab@Groupstudy. Com (E-mail)
Subject: RE: line protocol is down
It's a little hard to debug without knowing how the circuit is provisioned,
but assuming that we are dealing with a T1 circuit, I would have SBC verify
the framing and coding on the circuit, and make sure that the settings on
your side match.
Mike Dickson
CCIE #12281, MCSE+Internet, MCDBA
Dickson Network Designs
(512) 422-3192 voice (512) 394-0320 fax
www.dicksonnetworks.com
-----Original Message-----
From: Moffat, Ed [mailto:EMoffat@fsci.com]
Sent: Saturday, April 03, 2004 3:35 PM
To: 'Kaiser Anwar'; 'Ccielab@Groupstudy. Com (E-mail)'
Subject: RE: line protocol is down
Have you checked the configurations and errors on your DSUs?
-----Original Message-----
From: Kaiser Anwar [mailto:kaiseranwar@sbcglobal.net]
Sent: Saturday, April 03, 2004 1:30 PM
To: 'Neil Moore'; 'Ccielab@Groupstudy. Com (E-mail)'
Subject: RE: line protocol is down
It is simply point to point with ser up on both sides and line down. I have
tried every combination. On one side I am getting lot of input errors. As
soon as I clear them I get them again. Thanks
Kaiser Anwar
Network engineer
Cell: (847) 409-7261
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf
Of
Neil Moore
Sent: Saturday, April 03, 2004 3:19 PM
To: Kaiser Anwar; Ccielab@Groupstudy. Com (E-mail)
Subject: Re: line protocol is down
The physical interface being down, Incorret DLCI on the frameswitch or
interface would do it.
Please email in the physical and point-to-p conifg along with a show frame
map
----- Original Message -----
From: "Kaiser Anwar" <kaiseranwar@sbcglobal.net>
To: "Ccielab@Groupstudy. Com (E-mail)" <ccielab@groupstudy.com>
Sent: Saturday, April 03, 2004 4:05 PM
Subject: line protocol is down
> Hi,
> Just a quick question for point to point what could cause line
> protocol down. Thanks
>
>
> Kaiser Anwar
> Network engineer
> Cell: (847) 409-7261
>
> ______________________________________________________________________
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