[c-nsp] IOS ping response improvement

[Oliver Boehmer (oboehmer)]

Church, Chuck <> wrote on Tuesday, February 14, 2006 5:07 AM:

> Anyone,
> 
>     I'm facing an issue with missed SLAs regarding 2900XL switches and
> slow ping response to the mgmt interface at times.  I realize that
> ICMP is by design a low-priority thread.  But convincing that to our
> PHBs may be a large battle. 

I feel this battle must be fought, so suggesting to use RTR/IP-SLA could
be counter-productive :-|
but anyway: RTR/IP-SLA with udpEcho or other non-ICMP probes are able to
compensate for any local processing delays (by using a time-stamp on the
packet buffer done by the driver), so even if it takes as much as a
second for the packet to be processed by IP-Input process+friends,
RTR/IP-SLA will still be able to report the "real" RTT.

I'm not sure if RTR is available on the 2900XL (if you want to try, try
the command "rtr responder")

	oli