[c-nsp] high cpu on VIP in 7507

[Troy Beisigl]

Hi Pete,

Did not switch out the underlying VIP in this case. We installed a  
VIP4-80 with a PA-GE. I have a few other chassis that are running this  
fine, but they are running older IOS versions than this one. Just  
thought it was unusual that we would see such high CPU on the VIP. I  
get the same performance with the GEIP which is a VIP2-50, hence the  
reason I called out the VIP types in the original post.

We also see the same performance on a regular VIP2-50 with a PA-FE-TX  
in it. Anything at 10Mbps or above cause the VIP to use 99% CPU which  
does not seem right. I would just roll this chassis back to the same  
IOS as the other ones, but need this version for the MFR support.

I did notice that this card is using flow-control where all my others  
are showing "flow-control is unsupported". I have looked but have not  
found a way to disable this.

-Troy



On Jul 7, 2010, at 7:58 AM, Pete Templin wrote:

> On 7/6/2010 3:10 PM, Troy Beisigl wrote:
>> Not much to the config. I have included both sides of the  
>> connection. the other end is a 6500
>>
>> 7507:
>> interface GigabitEthernet6/0/0
>> description feed to cat1.3/6
>> bandwidth 1000000
>> ip address X.X.X.X 255.255.255.240
>> load-interval 30
>> negotiation auto
>> end
> Wait a minute.  GE interfaces on a 7500 are supposed to be "special"  
> - GEIP comes on a "special" VIP2-50 that says GEIP, and GEIP+ comes  
> on a special "VIP4-??" that says GEIP+.  I've never done GE on 7500,  
> but I'd think you shouldn't be swapping out the underlying VIPs  
> without making sure it's paired correctly with a PA.
>
> pt
>
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