[e-nsp] STP network too large ??

Marcin Kuczera marcin at leon.pl
Wed Sep 7 17:02:17 EDT 2011


hello,

what may happen if STP network becomes too large without tunning STP 
parameters ?

I mean, if I have like 9-10 STP hops and STP parameters for 7 ?

Strange things that we notify are:

- high load on CPU (system) when switching over
- fdb table counter (dynamic entries) jumps from let's say 500 to 5000 
entries in several seconds (+ high load)
- multicasts problems (IPTV) when high load on cpu (system "process")

Sometimes, seems to be without any STP trigger all above just happen..

Regards,
Marcin


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