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Re: Links on the blink - reprise

  • From: Dave Siegel
  • Date: Fri Nov 17 20:21:55 1995

> >There are substantial disadvantages, too.
> >
> >In order to take advantage of the greater
> >port-density(-per-dollar) on FR switches right now, the
> >end user has to use FR, which is not always practical
> >or desirable.  
> >
> 
> One of the reasons why end users find frame-relay undesireable is
> that they cannot be assured that their provider is not grossly
> oversubscribed on PVC-per-port density. When you buy a T1 private
> line, you can be assured that you're not sharing it with 120 other
> end-users.  :-)

Nor can you know that with a Dedicated line, that the other side doesn't feed
into a 2501 into a collision-ridden Boca 10baseT hub, into a Welfleet bridging
over Frame-Relay-over-ATM at 1.5Mbps simplex speeds into an over-committed
4Mbps port speed on the other side.

i.e., the fact that your buying a leased line to connect and running HDLC
over it doesn't count for anything.  When it comes right down to it, customers
can't really be reassured of anything.

But then, nobody expects the customer to realize this, right?

Dave

-- 
Dave Siegel			President, RTD Systems & Networking, Inc.
(520)623-9663			Systems Consultant -- Unix, LANs, WANs, Cisco
dsiegel@rtd.com			User Tracking & Acctg -- "Written by an ISP, 
http://www.rtd.com/						for an ISP."




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