[c-nsp] Cisco 7200 GigE interface w/NPE 225.

Adam Armstrong lists at memetic.org
Tue Apr 1 05:26:29 EDT 2008


Alex Balashov wrote:
> Adam Armstrong wrote:
>> Alex Balashov wrote:
>>> Greetings,
>>>
>>> I tried to install a single-port optical GigE card in a Cisco 7204 
>>> VXR chassis with an NPE 225 and was informed by the IOS that it is 
>>> incompatible with the NPE 225, so the adaptor is shut down.
>>>
>>> Anyone know how to get around this limitation other than by getting 
>>> a beefier NPE?  I do not actually intend to run anywhere *near* a 
>>> gig of traffic through that thing;  it's just that the handoff I am 
>>> getting from a provider is optical and this is the easiest route for 
>>> me.
>>>
>>> If I do have to get a new NPE, will a 400 suffice, or do I have to 
>>> go 1G?
>>>   
>> I believe an NPE-300 would be sufficient. I don't recall putting a 
>> PA-GE into an NPE-225, but IIRC BT use a PA-GE in an NPE-300 to 
>> deliver ADSL in the UK.
>>
>> You won't get more than 400mbit (200mbit each way)  across a PA-GE no 
>> matter what slot/npe you put it in! :)
>
> Thanks for the insight...
>
> Strangely, if I Google "npe 225 gige" I get all sorts of results for 
> router configurations that appear to include the NPE 225 and a PA-GE, 
> for instance:
>
> http://www.cisco.com/en/US/products/hw/routers/ps341/products_data_sheet09186a0080088724.html 
>
>
> This leads me to believe that I should be able to install a GigE port 
> in this thing in principle.  So, why does the IOS reject the adaptor 
> on grounds that it is "not compatible with this npe cpu."
Have you tried a different IOS release/train? Perhaps the disabling was 
added later or removed later.

adam.


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