Path: utzoo!attcan!ncrcan!becker!censor!comspec!tvcent!lethe!torsqnt!news-server.csri.toronto.edu!cs.utexas.edu!samsung!munnari.oz.au!wcc!tom
From: tom@wcc.oz (Tom Evans)
Newsgroups: comp.protocols.appletalk
Subject: Re: More assistance with CAP please...
Keywords: CAP Kinetics KFPS4
Message-ID: <759@wcc.oz>
Date: 7 May 90 05:10:19 GMT
References: <2464@ariel.unm.edu> <742@wcc.oz> <10208@batcomputer.tn.cornell.edu>
Distribution: comp
Organization: Webster Computer, Melbourne, Australia
Lines: 26

In article <...>, lynch@batcomputer.tn.cornell.edu (Tim Lynch) writes:
> 
>  >Why bother with KSTAR 8 then? Going from 7 to 8 costs you about 30
>  >buffers - you end up with only 49 free and you can run out easily.
>  
>  What happens when you run out of buffers?  Does the FastPath hang
>  or appear to?  

No, it's well behaved. It just silently drops all incoming packets until
it's managed to send a queue'd packet to make room. You can see if
this has happened in the Lan Ranger statistics (Buffer Stats - Dropped).
While this is happening your print sessions can time out (or slow
down) and your AppleShare sessions slow down a lot. Eventually
everything retries and it gets going again...

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Tom Evans  tom@wcc.oz.au        |
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