[c-nsp] GSR12008|GRP-B|4OC12/ATM-MM-SC|3GE-GBIC-SC throughput?

[Lasher, Donn]

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Lamar Owen
Sent: Wednesday, April 15, 2009 8:35 AM
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] GSR12008|GRP-B|4OC12/ATM-MM-SC|3GE-GBIC-SC
throughput?

<snip>
>The GRP CPU is not involved in the data plane on a GSR; the LC 
>engine CPU's/ASICs do dCEF and talk directly over the fabric.  Unless
you have 
>serious fabric issues preventing full bandwidth, in which case you have
bigger 
>problems.
<snip>

Depending on the protocol / encaps / engine age / packet-size, you may
see very high CPU loads preventing line rates on certain cards. Try, as
an example, (Engine0 GIG-E card + MPLS Labeling + QoS + ACL's). You'll
see much higher CPU doing that, than say, the same thing on an Engine3
GIG-E card.