Messages in this thread | | | Date | Mon, 27 Jul 1998 23:06:19 -0700 | From | "David S. Miller" <> | Subject | Re: 2.1.111 VM and low memory machines |
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Date: Tue, 28 Jul 1998 17:43:01 +1200 From: Chris Wedgwood <chris@cybernet.co.nz>
And how many internet hosts actually support wscale?
In my tests, I find a little less than 7% of hosts support wscale.
be careful with your measurements... For example both IRIX and Digital Unix support it, but in the IRIX case it uses them only when clients make connections to _it_ advertising window scaling, timestamps, etc. The other way around, with IRIX, won't have window scaling or timestamps. This is the default configuration of IRIX and what most people use.
Digital Unix, in my experience, will try to enable it not matter which side initiates the connection.
btw, I'm still seeing funnies with 2.1.112-pre2 and sucky performance.
Ok, I'll be looking into your logs, be patient.
Oh, and when I sniff the interface, I get double packets for anything out-bound - anyone else?
For loopback this is normal behavior, I never see this for normal ethernet. If you are seeing it for normal ethernet, do you happen to have multicasting of somesuch enabled (explicitly in ipv4 or as a side effect of using ipv6 at all)?
Later, David S. Miller davem@dm.cobaltmicro.com
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