[nsp] QoS issues on Sup 720 ??

[Deepak Jain]

It looks possible, though the likelihood you are hitting it... hmmm.

http://www.cisco.com/en/US/products/hw/switches/ps708/products_white_paper09186a0080092389.shtml

The Catalyst 6500 SFM uses overspeed to eliminate congestion and 
head-of-line blocking. Overspeed is a concept by which the internal 
"paths" within the crossbar fabric are clocked at a speed faster than 
the input rates into the crossbar. This allows packets to be switched 
out of the source module through the fabric to the output line card at 
high data rates. The SFM uses 3x overspeed, meaning that each internal 
trace is clocked at 24 Gbps relative to the input rate, which is clocked 
at 8 Gbps.

DJ

Dmitry Volkov wrote:

> Does anybody aware about any head-of-line blocking issues on 7600 sup 720 ?
> 
> Thanks,
> 
> Dmitry
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