[c-nsp] Exceeding the bandwidth points on a 7200

[Jeremy Bresley]

The card Walter mentioned is the C7200-JC-PA.
http://www.cisco.com/en/US/prod/collateral/routers/ps341/product_data_sheet0900aecd804419c6.html
It works with the NPE-G1 or G2 and it looks like the PA-MC-T3 is listed 
a supported adapter in it.  This basically replaces your I/O card (or 
blank if you have always had a G1/G2 CPU in there) with a dedicated port 
adapter slot for a single high-bandwidth port adapter.  One thing that 
looks like it is conspicuously absent is support for any of the GigE 
cards in the jacket, the only supported ones are the VAM2/VAM2+, 2 port 
FastEthernet, and various 1/2 port T3/E3/SONET/ATM cards and the 8 port 
T1 card.

Jeremy

Walter Keen wrote:
> I think there was a supportable way of adding another module via the IO
> slot using a special card in the IO slot that provides you with a PA
> slot that doesn't count towards the BW points of the other busses if I
> remember correctly.
>
> Justin Shore wrote:
>   
>> I have a situation on a 7206VXR w/ a NPE-G1 where I need to add a MC
>> DS3 module.  The box already has 4 PA-A3-OC3SMI PAs.  I'd like to add
>> a PA-MC-T3 to the box as well.  I know that the OC3 PAs max the
>> bandwidth points out for each PCI bus.  However the OC3s are very
>> lightly loaded.  Looking back at the graphs I don't see any of the 4
>> peaking over 5Mbps.  That may seem surprising considering that there
>> are nearly 1000 PVCs configured on those 4 OCs for DSL customers; the
>> DSLAMs are very low-end, can only do basic ADSL, and the uplinks
>> restrictthe average access speeds to extremely low levels.
>>
>> So my question is what happens when I exceed the bandwidth points on a
>> 7200 where I know that bandwidth from the existing PAs won't ever be a
>> problem?  The box as a whole peaks at around 12-15Mbps on its uplinks.
>> That G1 is truly bored, averaging below 10% utilization.  I know that
>> IOS will bitch about it on boot but it will still continue to work
>> won't it?  Any other side effects (other than TAC not liking it if
>> they see it until I demonstrate with the graphs that it's not a problem)?
>>
>> Thanks
>>  Justin
>>
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