Ethereal-dev: Re: [Ethereal-dev] (no subject)

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From: Richard Sharpe <sharpe@xxxxxxxxxx>
Date: Fri, 24 Aug 2001 18:21:55 +0930
Glen Turner wrote:
Aamer Akhter wrote:

the multicast mac is different (one protocol's bpdu's will get tunneled
through the others domain). the multicast mac for 802.1d is
01-80-c2-00-00-00
hello timer is 1 sec in dec rather than 2 sec

afaik decnet isn't related in any wat to dec stp


The relationship is more to DECnet's predecessor,
LAT (local area transport).  This was an ethernet-
based, bridged, non-routable protocol.  So some way
was needed to have large bridged networks without
broadcast storms when a cabling error introduced
a loop.

Ummm, no, If my memory serves me correctly, DECnet was born long before LAT came onto the scene. I remember using the old DECserver 100 boxes, but DECnet had been around long before then.

LAT was designed in response to the fact that DECnet was just too large a protocol to fit into a small processor as the DECserver range was to contain, and was not needed in the perceived market for the DECservers, which was as terminal concentrators for VAXen, but on the same LAN.

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