[c-nsp] Understanding 10G line card oversubscription

[Nick Hilliard]

On 21/03/2011 22:22, Phil Mayers wrote:
> Having said that, the truly tragic thing about the 6500 is that, until
> recently, it still beat a lot of newer platforms on feature mix combined
> with decent performance and reasonable (if not great) density.
[...]
> Having said that, I won't be sorry to see the back of the crappy CPU and
> 12.2S IOS train ;o)

that works both ways.  Because the switch has been around for many years 
and has been such a cash-cow for Cisco, it's been financially possible for 
cisco to fund development of a very large number of features on the system. 
  If you start out from scratch with a new pile of silicon (asr9k / n7k or 
indeed any other product line), you end up spending huge quantities of 
money even to get close to feature parity to existing products, by which 
time your hardware is outdated.  It's a really difficult problem to deal with.

Nick