value of co-location

Tim Salo salo at
Mon Jan 22 15:53:06 UTC 1996

> To: nanog at
> Subject: Re: value of co-location 
> Date: Mon, 22 Jan 1996 09:29:06 -0500
> From: "Joseph Lawrence" <lawrence at>
> 	[...]
> PS. Also does someone have numbers for the amount of
> buffering in a DEC gigaswitch, and information on their buffer
> managment (i.e. variable length buffers vs fixed length buffers).

DEC has a nice technical report about the flow control mechanism used in
the GigaSwitch.  Your DEC salesperson should be able to get you a copy,
and probably some other interesting stuff, (make your salesperson earn
his or her living...).

In some sense, you may be asking the wrong question.  I think the 
GigaSwitch flow control mechanism pushes the buffering requirements back
to the FDDI stations (i.e., routers).  Consult the DEC report for the
real answer.

If necessary, I can dig up the document number.


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