Re: 回复:Re: 回复:ForCES meeting minutes (draft)

In  a ForCES based router, the ingress policies would be applied on 
the board that first receives the packets.  It knows what port the 
packets arrive on.
I would recommend (but the standard can not mandate) that one use 
separate ethernet ports to interconnect the FEs, distinct from the 
ports used to send and receive external traffic.  But that is an 
implementation choice.

Yours,
Joel M. Halpern

At 09:15 PM 11/8/2006, you wrote:
>For Example, in traditional router, many policies are based on 
>source port in forwarding process.
>for instance, to filter some unwanted traffic based on the source port,
>and source port information could be different for each packet, and 
>destination address in the header of packets
>has no relationship with the source port, given that the source port 
>is carried in meta-data, I do not know how
>to reconstruct this info again when it is needed later.
>
>
>Kind Regards,
>
>Michael