There are too many interpretations of this metric to make it useful for match making. 

1. Is this the maximum b/w of the interface, or the amount of currently unused b/w?

2. What are the semantics for multi-homed nodes where the interfaces are not "bonded"? Is this the highest b/w of all 
the individual interfaces? The lowest? Is it aggregate? 

3. For a multi-homed scenario, what if my job is constrained to use one interface (given the endpoint I'm connecting to)
, but the value for another interface is the one reported? Then it's basically useless for match making. 


So ... I find that this metric is not very meaningful without some kind of clarification as to what is being measured.