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Re: [nanog] Re: Microsoft offering xDSL access
From: "Paul J. Zawada" <zawada () ncsa uiuc edu>
Date: Fri, 23 Jan 1998 11:56:44 -0600

At 09:19 AM 1/23/98 -0800, Jim Shankland wrote:

Of course, this is orthogonal to xDSL; the same economies of scale would
apply with T-1 local loops.

Seems to me that for the RBOCs, the big disadvantage of xDSL is losing
all those fat, high-margin T-1 local loop fees.  

Two problems with this...  

1) If the RBOCs try to keep status quo with the T1 situation, the cable
companies may eventually eat the RBOCs' lunch.

2) The RBOCs can deploy fewer HDSL-based T1s due to Near-End cross-Talk
(NEXT) concerns...  ADSL doesn't have a NEXT problem so they can deploy
many more ADSL loops than HDSL loops in the same cable sheath...   In this
case, volume will win over keeping prices high...



Paul J. Zawada, RCDD     | Senior Network Engineer
zawada () ncsa uiuc edu     | National Center for Supercomputing Applications
+1 630 686 7825          | http://www.ncsa.uiuc.edu/People/zawada

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