[Rack] Rack Power Outage?

Jonathan Lassoff jof at thejof.com
Mon Sep 13 16:43:12 PDT 2010


On Mon, Sep 13, 2010 at 4:39 PM, Dr. Jesus <j at hug.gs> wrote:
> I think what you really want is to prioritize small packets.  I
> believe SSH and ICMP are already prioritized:

I'm not sure small necessarily means high priority. A jerk application
or user could still fill the outbound queue with many many small
packets (though probably not before the forwarding is CPU bound, I'd
guess).

I think I'll just have to console in and look at some counters next
time things start to crawl.

> pass  out on $ext_if inet proto icmp from ($ext_if) to any keep state
> queue ssh_im_out
> pass  out on $ext_if inet proto tcp from ($ext_if) to any port $ssh_ports \
>        flags S/SA keep state queue(std_out, ssh_im_out)

My bad, we do prioritize ICMP.


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