[c-nsp] Hierarchical FIB on Cisco 7600

[Saku Ytti]

On (2014-04-25 10:56 -0400), Pete Lumbis wrote:

> The difference in commands is mainly in relation to software/memory. This
> has the biggest impact on software based platforms like the 7200 but you'll
> see an uptick in RP/SP memory usage by enabling, but only changes how
> routes are built in hardware.

How does it change how routes are built in HW?

My understanding is that 7600 won't do indirection (load-info) in hardware
TCAM regardless of your configuration.
I don't think the hardware is really even capable of that, outside
recirculation which I think is how MPLS FRR is implemented. But that'll mean
you'll halve your PPS.

-- 
  ++ytti