[c-nsp] BW parameter on the Interface

[sthaug at nethelp.no]

> > Perhaps in the cases I've seen it's because BW influences OSPF routing
> > decisions?
> 
> If it does, it's news to me. I've never seen this.
> 
> I've seen comments before about how "interface loading" or "bandwidth" 
> can influence path selection in EIGRP, but only in marketroid 
> pseudo-technical documentation (hence my vague phrasing).

The bandwidth parameter influences OSPF interface metric (cost), and
thus OSPF routing decisions. The default metric is 100m / ifspeed.
This is nothing new - it's documented and has been like this for
"ages". It is fairly common nowadays to set the reference-bandwidth
to a higher number than 100 Mbps.

Steinar Haug, Nethelp consulting, sthaug at nethelp.no