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Date:      Sun, 29 Mar 1998 08:10:45 +0200 (SAT)
From:      John Hay <jhay@mikom.csir.co.za>
To:        walter@fortean.com (Bruce M. Walter)
Cc:        freebsd-hackers@FreeBSD.ORG
Subject:   Re: de driver and sshd
Message-ID:  <199803290610.IAA11618@zibbi.mikom.csir.co.za>
In-Reply-To: <Pine.BSF.3.95q.980328180544.26484A-100000@callisto.fortean.com> from "Bruce M. Walter" at "Mar 28, 98 06:16:05 pm"

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> 
> Has anyone experienced problems with sshd on a box with a de (digital)
> based NIC?  Specifically, the interface stops communicating for a
> indeterminate period of time, usually on the order of several minutes.
> Just as mysteriously as it starts, it stops and everything goes back to
> normal.
> 
...
> 
> Killing sshd makes the problem go away.  This has also happened on several
> de based NIC's (Kingston, DEC and I believe an SMC Etherpower2).  There
> doesn't have to be any ssh client activity, just running the server for
> several hours apparently is enough (for me at least).
> 
> I realize this info is nebulous, but I want see if any others have
> encountered this or if there are known issues before I dive into the
> driver source (that tulip stuff looks pretty hairy).

We have six machines here with various cards using the de driver and I
use ssh daily to get into them and I haven't seen any delays worth
noting.

Thinking about it, I can't understand how sshd can have any efect on
the de driver that wouldn't also happen when some other program use
the network... I mean it only opens a socket and send data over it,
the same way any other network program will. You might have a few big
packets in the beginning when the keys are exchanged though that you
might not have with something like telnetd...

John
-- 
John Hay -- John.Hay@mikom.csir.co.za

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