From: Richard Boover (rboover@cisco.com)
Date: Wed Jul 23 2003 - 11:58:52 GMT-3
Yes this is true. This is usually a function of the DCS in the CO. It can
be setup for "pass-through" timing or it can supply the timing. In my
previous job, i have ordered several hundred circuits from many providers
and the majority of them where always setup for pass-through, meaning that
we would set one end for internal timing and the other end for network.
Rick
At 10:46 PM 7/22/2003 -0500, Frank Jimenez wrote:
>This varies from location to location - even sometimes within the same
>carrier.
>My guess is that it depends on the equipment at the CO.
>
>The best thing is to verify with each circuit as part of the initial
>order, and
>then re-verify on turn-up. Some of the most frustrating problems I've
>ever had
>involved troubleshooting multiple clock sources on the same circuit. I still
>get mad at the memories... Grrrr...
>
>Frank Jimenez, CCIE #5738
>franjime@cisco.com
>
>-----Original Message-----
>From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of Phil
>Sent: Tuesday, July 22, 2003 7:43 PM
>To: ccielab@groupstudy.com
>Cc: ciscostudent1@yahoo.com.br
>Subject: OT: Point-to-point T1 clock source
>
>
>Sorry for the OT but I had a discussion this afternoon at work regarding the
>clock source for a point-to-point T1.
>
>I am sure the clock must be provided by one of the CSU/DSU and the other
>must be
>set to line/network. Everybody else argued both sides must be set to
>line/network.
>
>I called into the Telco and they told me they do not supply clock for
>point-to-point T1s, thus one of the ends must supply the clock.
>
>I was not able to find any docs on the web regarding this. Does anyone have a
>link to a document for this matter?
>
>Thanks in advance and sorry for the OT,
>
>Phil
>
>
>
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