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

[Scott Laird]

On Fri, 15 Jun 2001 [e-mail] wrote:
>
> > 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?

Did you change both /proc/sys/net/core/rmem_max *and* ping's setsockopt?
Do an strace on ping and see what's happening.

Scott