[c-nsp] OSPF fast convergence

[sthaug at nethelp.no]

> > I prefer to use BFD personally.  Link failure detection without BFD will 
> > be slow no matter what you do.  FRR doesn't gain you much if it takes 
> > you several seconds to realize that a link dropped.
> 
> Seconds? Wow. I'm curious - under what circumstances are you seeing such 
> length link-loss detection times?

1000baseT can in principle use several seconds. Optical interfaces 
should be much faster.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no