[c-nsp] bgp holdtime adjustment

[John Elliot]

> 
> > I would have something like this under L3 Interface to Upstream?:
> >
> > bfd interval 100 min_rx 100 multiplier 3
> >
> > And under bgp:
> >
> > neighbor UPSTREAM fall-over bfd
> 
> Something like that, the values might be different depending on what 
> platform you're running.
> 
 
Thanks everyone for the assistance - Upstream does support bfd, but unfortunately I am running PortChan on 7200, which appears to not support bfd!(Bugger!)...so looks like we will have to run with lower holdtime.