Cpu utilisation is high in cat 3550 EMI switch

hi,

iam senthil,we are using L3 switch (cat 3550) for conneting servers and our lease line customers.past 3 days its cpu utilisation in process level is rapidly changing 40-100%.Traffic is normal as usual.so the ios upgraded from 12.1(13)EA1a to 12.1(22)EA4 . still we are facing same problem.In sh proc cpu showed us two process are high utilisation

  1. VUR_MGR bg proce 88%
  2. CEF process

while i am giving clear arp-cache command utilisation comes to normal

2% .After 10 min utilsation starts to flap.

i read that VUR_MGR process is related to buffer management.if it is buffer problem then how can i fix it?..

L3 switch has 24 fasteth port and 2 GBIC.one GBIC is connected to redundant path.

pls assist me to sort out this issue bcos i didnt sleep past 3 days .

bye senthilkumar.s

Reply to
senthilkumars
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I've seen some similar issues on 3550 that had really different causes.

'show buffers' would help here to see if you are having a lot of buffer misses in local switching path or have a lot of process switched packets which create a buffer miss.

It would help to see 'show run' (without passwords, of course) and 'show ip route'.

Reply to
Ivan

Thanx Ivan...

i revert back to you...

senthilkumar

Reply to
senthilkumars

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