Re: [BUG] 2.2.19 -> 80% Packet Loss

chuckw@altaserv.net
Fri, 15 Jun 2001 07:17:54 -0700 (PDT)

> You can fix this by upping the socket buffer that ping asks for (look
> for setsockopt( ... SO_RCVBUF ...)) and then tuning the kernel to
> allow larger socket buffers. The file to fiddle with is
> /proc/sys/net/core/rmem_max.

Currently it is set to 65535. I doubled it several times and each time saw
no change when I sent it a ping flood with packet size 64590 or higher.
What sort of magnitude were you thinking?

> That doesn't really answer why you'd want to fling that many 64k-ish
> ping packets around, though.

No reason specifically other than intuition. Just kinda stumbled on to
this one.

-Chuck

-- 
Chuck Wolber
System Administrator
AltaServ Corporation
(425)576-1202
ten.vresatla@wkcuhc


Quidquid latine dictum sit, altum viditur.


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