From: Scott Hoover (scott.hoover@xxxxxxxxxxxxxxxxxxx)
Date: Fri May 18 2001 - 15:37:11 GMT-3
line-the line itself provides timing
dte-router would provide timing
internal-csu would provide the timing
In your case, the line is providing the timing.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Jeongwoo Park
Sent: Friday, May 18, 2001 1:22 PM
To: gardiner@sprint.net; ccielab@groupstudy.com
Subject: RE: point to point T1 troubleshooting.
Hey jason
Thanks for your input.
Why should it be set to network or line rather than internal? is it line or
DTE by the way?
the csu that I have has three option for clock source: line, dte, and
internal.
Can you tell me the brief difference of those?
Thanks
jp
-----Original Message-----
From: gardiner@sprint.net [mailto:gardiner@sprint.net]
Sent: Friday, May 18, 2001 8:31 AM
To: Jeongwoo Park
Subject: Re: point to point T1 troubleshooting.
Hello,
First of all, the Bandwidth on the interface is E-1 rather than T-1, but
that is merely cosmetic. The errors that are appearing might be related
to timing, but I've never seen giants on a serial line.
Check the timing on the CSU/DSUs on both ends. They should be set to
network or line rather than internal. But I think that telco lied to
you.
Jeongwoo Park wrote:
>
> Hi all
> Have anyone troubleshootted T1?
> it is ppp encapsulation, leased line.
> LEC(local exchange carrier) said circuit is fine, which I doubt.
> Router config is fine, I believe.
> here is output of "sh int s2/0"
>
> #sh int s2/0
> Serial2/0 is up, line protocol is down
> Hardware is M4T
> Description: Leased Line to branch
> Internet address is 10.10.14.86/30
> MTU 1500 bytes, BW 2048 Kbit, DLY 20000 usec,
> reliability 255/255, txload 1/255, rxload 1/255
> Encapsulation PPP, crc 16, loopback not set
> Keepalive set (10 sec)
> LCP Listen
> Closed: IPCP, CDPCP
> Last input never, output 00:00:03, output hang never
> Last clearing of "show interface" counters 18:08:32
> Input queue: 0/75/0 (size/max/drops); Total output
> drops: 0
> Queueing strategy: weighted fair
> Output queue: 0/1000/64/0 (size/max
> total/threshold/drops)
> Conversations 0/1/256 (active/max active/max
> total)
> Reserved Conversations 0/0 (allocated/max
> allocated)
> 5 minute input rate 0 bits/sec, 0 packets/sec
> 5 minute output rate 0 bits/sec, 0 packets/sec
> 0 packets input, 0 bytes, 0 no buffer
> Received 0 broadcasts, 0 runts, 2368 giants, 0
> throttles
> 8940 input errors, 1913 CRC, 0 frame, 6028
> overrun, 0 ignored, 999 abort
> 13556 packets output, 189784 bytes, 0 underruns
> 0 output errors, 0 collisions, 3438 interface
> resets
> 0 output buffer failures, 0 output buffers
> swapped out
> 3672 carrier transitions DCD=up DSR=up
> DTR=up RTS=up CTS=up
> **Please read:http://www.groupstudy.com/list/posting.html
-- Thanks,Jason Gardiner Engineering Services Sprint E|Solutions
"The only thing to prevent what's past is to put a stop to it before it happens." - Sir Boyle Roche **Please read:http://www.groupstudy.com/list/posting.html **Please read:http://www.groupstudy.com/list/posting.html
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