[c-nsp] 72000VXR vs Juniper ERS-310 for PPPoE termination

[sthaug at nethelp.no]

> > We have found empirically that many of the limits specified here are
> > *not* hard limits - for instance, we have had 310s in production with
> > well over 9000 IP interfaces per line card even if the documented max
> > is 8000, with no apparent ill effects.
> 
> This is interesting.  Now I'm curious about the architecture and
> implementation.  Anyone got any pointers?

I should add that exceeding the documented system maximums is normally
not a good idea. For example, JTAC could potentially refuse to deal with
a case until the the documented system maximums are followed (though
that has not been a problem for us yet). Testing under controlled
conditions is, as always, advised.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no