[nsp] Continuos Ping from Interface to Interface

[Eric Osborne]

On Wed, Jul 30, 2003 at 10:41:01AM -0700, rpcbind at speakeasy.net wrote:
> 
> NTP peering between point-to-point interfaces is always an easy way of
> watching overall latency (sh ntp assoc). If you want to get more involved,
> search cisco's site for 'SAA', though I've never found it very useful without
> spending some time scripting data collection and such (though once this is 
> done, its great).

I don't use SAA for fancy nms measurements and stuff, but I've used it
a few times for constant pings.  The config is something like

rtr 1
 type echo protocol ipIcmpEcho 1.2.3.4
 timeout 500
 frequency 1
rtr schedule 1 start-time now

which sends pings once per second, 500ms timeout.
You can then do 'sh rtr dist' to see what the numbers are - min, max,
sum, sum of squares.  It's very obviously built around the MIB, but
the MIB defines pretty well what all the terms are.  I've used it in
the past where I needed to have constant traffic of some sort on a
PVC.





eric

> 
> For your specific problem, despite problems on larger platforms, using nbar to
> break out protocol stats would probably be a good start. However on a 1720, 
> you'll have to go up to 12.2T or 12.3 for the functionality.
> 
> If you really do just want to do pings, just enable and use the extended ping 
> ('# ping'), where you can fire off as many pings as you want and check the 
> data at the end (marginally usefull, but you asked...)
> 
> 
> On Wed, 30 Jul 2003, Richard Golodner wrote:
> 
> > 	I am seeing high latency on many of my private frame circuits and
> > want to know if I can pinpoint the problem by running some type of continuos
> > ping from my remote router back to corporate. I a m suspecting that one or
> > some of my users are using some type of streaming media, which is prohibited
> > by our AUP.
> > 	 I have searched the cisco.com site and have tried google groups,
> > perhaps my search strings are not correct, but if anyone can give me a quick
> > pointer I would be most grateful. I am running a 1720 with 12.1 (1) at all
> > locations.
> > 					Thank you, Richard Golodner
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> 
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