[flow-tools] netflow udp packets seem to be delivered in batch

[Horatio B. Bogbindero]

Surlignage Mark Fullmer <maf@eng.oar.net>:

> Historically the 55XX and 65XX supervisor modules do a poor job of pacing
> NetFlow exports.  It may have been fixed in later revisions of the
> supervisor software...
> 
that is an interesting note. does this problem occur even if netflow is not activated on the switches. does this mean if i replace the switch or move the collecter closer to the cisco (net wise) performance will improve?

thanks.

> mark
> 
> On Fri, May 17, 2002 at 05:01:11PM +0800, Horatio B. Bogbindero wrote:
> > 
> > netflow udp packets seem to be delivered in batch. is this normal behaviour
> of
> > the new netflow (0.57)? i remember 0.56 receiving packets in real time.
> > 
> > i suspect somethings. for example, between, the 3663 and the collector
> machine 
> > is a 5509 with a large amount of vlans. or does the 5509 batch the flows?
> > 
> > thanks in advance.
> > 
> > -------------------------------------------
> > William Emmanuel S. Yu
> > Ateneo Campus Network Group (AteneoCNG)
> > email  :  wyu at ateneo dot edu
> > web    :  http://CNG.ateneo.net/wyu/
> > phone  :  +63(2)4266001-4186
> > GPG    :  http://CNG.ateneo.net/wyu/wyy.pgp
> > 
> > 
> > _______________________________________________
> > flow-tools@splintered.net
> > http://www.splintered.net/sw/flow-tools
> 
> _______________________________________________
> flow-tools@splintered.net
> http://www.splintered.net/sw/flow-tools
> 



-------------------------------------------
William Emmanuel S. Yu
Ateneo Campus Network Group (AteneoCNG)
email  :  wyu at ateneo dot edu
web    :  http://CNG.ateneo.net/wyu/
phone  :  +63(2)4266001-4186
GPG    :  http://CNG.ateneo.net/wyu/wyy.pgp