[c-nsp] CoPP crashing one of my lab routers

[Justin Shore]

I loaded up a number of IOS releases tonight to see if I could tell when 
the bug was introduced.  My test was to simply remove the service-policy 
from the control-plane (which causes a bus error in 15T1).  9T, 9T5, 11T 
and 11T3 worked fine.  The router crashed with 15T.  Apparently that's 
when the bug was introduced.  I've given all this info to TAC.

This makes me wonder if anyone out there is using CoPP, at least on 
12.4.  I would have expected someone else to come across this bug before 
my lab implementation.  15T was released almost 3 months ago.  15T1 was 
released 2 months ago.  Is anyone using out there using CoPP?  On 12.4T? 
    Just checking.

Thanks
  Justin


Justin Shore wrote:
> It looks like the problem may be specific to 12.4(15)T1 or a release 
> around the same time.  On Kevin Graham's advice I downgraded to 
> 12.4(9)T.  The problem went away.  I'll try various other releases in 
> between 9 and 15 to see how they behave.
> 
> Justin
> 
> 
> Justin Shore wrote:
>> I'm working on a CoPP implementation in the lab.  I've got a pair of 
>> 2811s running 12.4(15)T1 on each.  I've only implemented CoPP on one of 
>> them so far.  The config is fairly simple:
>>
>> I can't find any bugs related to CoPP on Cisco's site.  Any ideas why 
>> the router keeps crashing?  It would appear that CoPP is working fine 
>> until I try to modify the config related to it; then it crashes.  The 
>> config seems to be fairly simple.  Am I not configuring the router 
>> correctly?