[c-nsp] SIP 601 trhoughput

Oliver Boehmer (oboehmer) oboehmer at cisco.com
Mon Nov 5 12:49:18 EST 2012


>
> 
>> Let us say that one 10 GE is connected to your ISP and the other 10 GE
>> is connected to your back bone, GSR 12406 has a distributed forwarding
>> architecture, so technically forwarding traffic between the two 10 GEs
>> should not pass through the backplane, that is why I expect to have a
>>10 
>> Gbps throuput between outside and inside, but not sure :)
>
>The lookups are done on the linecards (this is what is distributed), but
>the packet still has to traverse the fabric as far as I remember. There
>is 
>no connection on the linecard to shortcut the fabric for intra-linecard
>forwarding.

That is true, there is no local switching on this platform

	oli




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