[c-nsp] Cisco 7500 High Availability

[neal rauhauser]

   This is a new customer for me and the one production 7507 has some 
manky ol' T train code on it so I don't have a good baseline.


Pete Templin wrote:
> neal rauhauser wrote:
>>
>>    I've got a customer with some 75xx that have dual RSP4s in them. 
>> We've got identical dram/flash/12.0.32S code on them and I've started 
>> fooling with the high availability stuff. I've received feedback from 
>> a couple people on NANOG that this doesn't work very well - the four 
>> to eight minute recovery RPR works, but the faster modes do not behave.
>>
>>   Can anyone comment on this? I'd like to make it go for this guy, but 
>> I don't want to spend forty hours learning all of the failure modes 
>> for a software product that works better on other hardware platforms ...
> 
> SSO has worked fairly well for me.  Depending on the failure mode, it's 
> anywhere from seamless to ~90 seconds of recovery (and a bit longer for 
> multilink interfaces).
> 
> However, 12.0.31S and 12.0.32S haven't worked well for me on 75xx.  Are 
> you seeing high "ignored" counters on your interfaces, perhaps 4-10x 
> what you had with perhaps 12.0.27Sx?
> 
> pt
> 


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