[c-nsp] ISIS routing

[Adam Vitkovsky]

> If you actually do run ISIS, it's extremely silly notion, same as
downgrading your control-plane CPU.

I didn't get it
What I meant is measure how much pps/bw is taken by ISIS during convergence
and add some headroom -as class default might be used by something else as
well
Is not like I'm crippling my RP's ability to handle ISIS just limiting it to
a reasonable pps rate

adam