[c-nsp] TCAM refresher

[Tony Li]

On Mar 14, 2007, at 1:25 PM, Florian Weimer wrote:

> * Brian Turnbow:
>
>> The fib is used to populate the tcam.  So yes all 600K routes will
>> not go in , but besides bgp all your local routes will.
>
> And your ARP table entries.  Of course, Cisco could fix that by
> aggregating entries before they end up in the TCAM: If both
> 192.0.2.8/30 and 192.0.2.12/30 have the same adjacency, you can do
> with a route for 192.0.2.8/29 instead.  But there are probably reasons
> for not doing it this way in the first place, so it's unlikely that
> such a change will arrive in time.


Such a change is computationally intensive and would frequently cause  
problems with processor overload.

Tony