Catalyst 2950 delay

Unanswered Question
Apr 1st, 2009


I have large network of LAN. having more then 100 cisco switches. on Access Layer i am using 2950. behind 2950 i have different WAPs (wireless access points)i.e. Dlink and linksys. some time my 2950 receives strom and flood from WAPs. i tried to find it out using different techniques like Ethereal and tupdum bt couldn't found the that time my ping response reaches 700 ms or more. in sh pro cpu , it shows normal activity even less then 10%. only 1 thing 1 find out that is IGMP packets...i put filter on 2950 then it tries to handle it even then it remain slow....please need experts advise...


I have this problem too.
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Giuseppe Larosa Thu, 04/02/2009 - 02:19

Hello Soshomile,

have you tried to use storm-control ?


this could help protect the switch and the network from flooding.

int type x/y

storm-control {broadcast | multicast | unicast} level {level [level-low] | pps pps [pps-low]}

Hope to help



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