[c-nsp] c6500 turn interface up whitout any physical device connected to it

[Peter Rathlev]

On Fri, 2011-07-15 at 13:55 +0200, Alexandre Durand wrote:
> Peter, why a floating null0 static route will be a preferred choice 
> compared to a normal static route (AD=1)

Keeping it "floating", i.e. with an AD of 250, means that it will not
take precedence to a regular static route, which might exist for some
other reason. So you could have something like:

ip route 192.0.2.0 255.255.255.0 Fa0/0 198.51.100.10
ip route 192.0.2.0 255.255.255.0 Null0 250

When Fa0/0 is up/up it takes the traffic. Otherwise the Null0-route will
take it, and since there's still a route in the RIP there will still be
a prefix in BGP. It will prevent most kinds of failover of course, but
I'm guessing you already though of that.

-- 
Peter