From: Aspel, Jeff (MED) (Jeffrey.Aspel@med.ge.com)
Date: Thu Jul 17 2003 - 09:44:56 GMT-3
-----Original Message-----
From: David Fairman [mailto:DFairman@duke-energy.com]
Sent: Thursday, July 17, 2003 7:39 AM
To: Yuki Hisano
Cc: Charles Church; ccielab@groupstudy.com; nobody@groupstudy.com
Subject: Re: Layer1 question (off-topic)
Hi,
I have seen something like this similar before. This was on a MFT.
This
was occurring when a UTP cable was used instead of an STP cable. Might
pay
to ensure that the cable is correct. If so, check with the ISP...
David Fairman
Senior Network Engineer
Duke Energy International - Asia Pacific
Direct: +61 2 8223 2148
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"Yuki Hisano"
<yukyhisano@hotm To: "Charles Church"
<cchurch@wamnet.com>, <ccielab@groupstudy.com>
ail.com> cc:
Sent by: Subject: Re: Layer1
question (off-topic)
nobody@groupstud
y.com
07/17/2003 10:27
PM
Please respond
to "Yuki Hisano"
Chuck,
No, there no errors showing up on the serial.
That is why I was wondering if its causing any communication
disturbance.
Someone told me that as long as it is not showing up on the router,
it is not affecting the communication. I think it does affect the
communication
somehow.
Clocking is configured correctly(I have other circuits configed exactly
the
same)
by the way.
Yuki
----- Original Message -----
From: "Charles Church" <cchurch@wamnet.com>
To: "Yuki Hisano" <yukyhisano@hotmail.com>; <ccielab@groupstudy.com>
Sent: Wednesday, July 16, 2003 10:31 PM
Subject: RE: Layer1 question (off-topic)
Yes, it probably is causing some other problems for the higher layers.
First make sure your clocking is set correctly. If the carrier is
providing
clocking, then your DSUs should both obtain it from the line. If
they're
not providing clocking, then one of your DSUs should provide clock. If
your
clocking is OK, then you may have noise on the line or something else.
Are
there any errors showing up on the serial interfaces?
Chuck Church
CCIE #8776, MCNE, MCSE
Wam!Net Government Services
13665 Dulles Technology Dr. Ste 250
Herndon, VA 20171
Office: 703-480-2569
Cell: 703-819-3495
cchurch@wamnet.com
PGP key:
http://pgp.mit.edu:11371/pks/lookup?search=chuck+church&op=index
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Yuki
Hisano
Sent: Wednesday, July 16, 2003 1:22 PM
To: Yuki Hisano; ccielab@groupstudy.com
Subject: Re: Layer1 quesion (off-topic)
==RESEND==
Group,
This is an off-topic question.
I have a simple PPP connection. On one DSU, I have Errored Second
counting up.
It is aboout 10~20 ES every 15 mins. I was wondering if this causes any
communication
disturbances on the higher layer.On the other DSU, I do not see any ES.
Thanks!
Yuki
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