[c-nsp] Interface down on errors

[David Coulson]

I've got a T1 serial interface throwing errors, that is 'mostly up'. 
It's basically useless until the telco fix it, so I've manually shut it 
down to force traffic over an alternative path to that downstream user. 
I've been digging round to see if there is a nice way to do this 
automatically - Seems like no.

Is there a way that one can down an interface based upon the reliability 
of an interface? Is there a SNMP MIB to obtain the interface reliability?

David