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From: MacUserLabs@cup.portal.com (Stephan - Somogyi)
Newsgroups: comp.sys.mac.system
Subject: Re: system 7 and appletalk traffic
Message-ID: <43464@cup.portal.com>
Date: 19 Jun 91 16:57:51 GMT
References: <1991Jun19.040356.16541@odin.corp.sgi.com>
Organization: The Portal System (TM)
Lines: 23

cj@modernlvr.wpd.sgi.com (C J Silverio) writes:
 
>SGI's mac support people are all in a tizzy over system 7's possible
>affect on appletalk networks here.
>
>I can see how heavy use of file-sharing would increase traffic. Are
>there any other legitimate concerns?
 
AFP traffic, while almost certainly the main cause of additional load,
is not going to be the only source of 7.0-related net load.
 
The PPCToolbox uses ADSP to transfer data over networks - once there
are more apps that talk to each other you will see more ADSP traffic
as well.
 
Also note that the ADSP driver in 7.0 (and the one shipped with AT 56
for System 6.x) has the throttleback feature built-in. The ADSP driver
monitors AppleTalk's collision stats; if they go up it sends less
intensively. At least this is the theory - I haven't tried it out
while watching with a sniffer.
 
______________________________________________________________________
Stephan Somogyi                   net.nerd                     MacUser