NetNews Usenet Archive 1992 #27/NN_1992_27.iso/spool/comp/dcom/telecom/12115

Internet Message Format | 1992-11-22 | 1.7 KB

Path: sparky!uunet!zaphod.mps.ohio-state.edu!news.acns.nwu.edu!telecom-request
Date: Sun, 22 Nov 1992 20:12:09 GMT
From: [e-mail] (Mark C. Tucker)
Newsgroups: comp.dcom.telecom
Subject: Help on Settling an Argument About Leased T1 Lines
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A colleague and I were having an argument about leased T1 lines.
Perhaps some experts can settle this issue for us.

Let's say I lease a T1 link from the LEC. So I have 24 DS0 TDM slots
going to the the LEC's CO. My data has to go across two CO hops to our
downtown site where again we have 24 contiguous DS0 slots being
delivered from the terminating CO to our downtown building. Now, the
question is whether the contiguity of the original 24 DS0 TDM slots
will be maintained across the links between the originating and
terminating CO's.  In other words, will a dedicated T1 link (or a
fixed T3 slot) be allocated to me and my individual DS0 slots never
demultiplexed at the originating CO? Or will my 24 slots be chopped up
and carried over separate portions of the inter-office T3 links, only
to be reassembled at the terminating CO and delivered as one chunk of
24 DS0's again?

Do the answers change if I lease T1 circuits from an IXC and go
directly to their POP instead of going through the LEC's CO ?

Please help us resolve this issue.

Thanks in advance.

Regards,


Mark Tucker            email:    [e-mail]
Member of Research Staff    tel:    [phone]
Philips Laboratories        fax:    [phone]