/127 between routers?

[sthaug at nethelp.no]

> The opposite was indicated to me by Cisco; that on the CRS-1 masks > 64
> bits would slow the pps throughput of the ASIC. That statement would in
> turn affect loopbacks, too... no more /128s? Meanwhile, 7600s were
> explicitly mentioned as not being affected in this same way.

I would definitely be sceptical of any such CRS-1 claims until some
supporting evidence can be produced.

> I think if you use anything other than /64s, there will be bumps on the
> road ahead for you.

That train left the station long ago.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no