pstebner10 Wed, 05/20/2009 - 07:54
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Lian-

Are you running CEF? If not, the 6500s use a redirect mechanism to move packets that leave the sup module. This causes high CPU, so there is a built-in throttle mechanism to prevent DoS type attacks. So, the sup module can drop your pings because they come in at a high rate. Try enabling CEF and see if your issue goes away.



HTH,

Paul

edgar_pascal Wed, 05/20/2009 - 16:21
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Paul,

Yes, my C6500'S was'nt run CEF, it is neccessary to config CEF in my all C6500's, can you show me to config CEF.

Attached 2 of C6500's config.


Lian

edgar_pascal Wed, 05/20/2009 - 16:25
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Paul,

Yes, my C6500'S was'nt run CEF, it is neccessary to config CEF in my all C6500's, can you show me to config CEF.

Attached 2 of C6500's config.


Lian



Attachment: 
edgar_pascal Wed, 05/20/2009 - 18:26
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Paul,

one more question what is benefit and risk if i implement of ip cef command?


Regards,

Lian

edgar_pascal Thu, 05/21/2009 - 21:03
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Hi Paul,

Thanks very much about CEF your very helpful.


Paul,

anoter question

How to find high broadcast or multicast traffic on C6500 source and destination address on switch or per interface?


Regards,

Lian

edgar_pascal Tue, 05/26/2009 - 05:49
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Hi Paul,

thanks for you help i just reload my c6500

and now back to normal.


Thanks

Lian

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