[c-nsp] SUP-32 and SIP-400

[Phil Bedard]

If you look at the configuration guide for the SIP-400 it lists the  
following:

"The Cisco 7600 SIP-400 supports installation of up to two 2-Port  
Gigabit Ethernet SPAs without any other SPAs installed in the SIP."

In my testing of OC48+OC12 I received this error when adding the OC12  
SPA:

002228: SLOT 3: *Mar  1 00:00:07.859: %SIPSPA-4-MAX_BANDWIDTH_NS:  
Total SPA bandwidth exceeds line card capacity, installed combination  
of SPA interfaces is not supported

While the SIP-400 had no problem delivering line-rate traffic over  
both at IMIX packet sizes, the card is packet-rate limited to 2.5Gb/s  
@40 byte packets.   I believe it's a 20Gb fabric connection, so  
that's not an issue, it's the forwarding engine of the SIP-400 itself.

Phil



On Jun 4, 2007, at 11:08 AM, MKS wrote:

> On 6/1/07, Asbjorn Hojmark - Lists <lists at hojmark.org> wrote:
>>
>>> Is this something that has changed recently or has sup-32
>>> always supported the sup-400.
>>
>> Not "always". Sup32 has supported SIP-400 since SXF.
>>
>> -A
>>
>>  Well in any case the product sheet is confusing....
>
> Does somebody care to enlighten me about the switching fabric on the
> SIP-400, when do I want to have to connected to the fabric.
> I assume that the highest density setup would be 4 times 2-port  
> 1GbE SPA
> modules, a total of 8Gbps.
> But according to the specs the SIP-400 only does 4Gbps @64-byte  
> packets.
> http://www.cisco.com/en/US/products/hw/routers/ps368/ 
> products_data_sheet0900aecd8027c9e6.html
>
> Regards
> MKS
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Phil Bedard
philxor at gmail.com