Cisco specifies Sup720 as being capable of “up to 400Mpps*” routed IPv4 with the footnote implying that this is in dCEF mode. With dCEF, each linecard has its o

Cisco specifies Sup720 as being capable of “up to 400Mpps*” routed IPv4 with the footnote implying that this is in dCEF mode. With dCEF, each linecard has its own forwarding logic, so the lookup time deadline has to be multiplied by number of linecards (ie. 4 for 6506 chassis). One implication of dCEF is that you end up replicating somewhat expensive ASICs across the system to gain more performance, which gets real expensive real fast. Not that it changes much about your point.