[c-nsp] Cat6500 - Support for MPLS and IPv6

[Asbjorn Hojmark - Lists]

> The issue is not an attempt to re-architect. It's 4 (ION, 
> IOS-XR, NS-OS, IOS XE), on platforms with partially overlap-
> ping coverage.

IMO there's a pretty big difference between building software
for a pure core, for a data center with lots of L2 and SAN, and
'IOS with *all* the features, reworked'.

Would it be great to have a single OS for all of it? Well, then
you'd only have to learn one, obviously, but it sure wouldn't be
good for 'time to market' (feature velocity)... and you'd still
have all the hardware differences.

-A