[Isis-wg] Re: FYI Draft Metrics and Resource Classes for TE

[Daniel Awduche]

Jon,

A note on your draft...

You made the following assertion in the draft..

 "On the other hand, it is also possible to look at bandwidth as an
  additive metric by using link costs that are in inverse proportion
  to available bandwidth; in such cases, the shortest path
  corresponds to the path with the most bandwidth."

This assertion is, of-course, false (that is that the shortest
path based on inverse bandwidths is the one with the most 
bandwidth). You may wish to correct it in the next iteration 
of your draft. 

Regards,
/Dan


Don Fedyk said:
> 
> We have submitted the draft: draft-fedyk-mpls-te-metrics-00.txt
> for review to the following working groups:
> - Traffic engineering
> - MPLS
> - IS-IS
> - OSPF
> 
> We asked to present it to the TE and ISIS working groups.
> 
> Abstract
> 
>    There has recently been a lot of activity in defining the components
>    for MPLS-based traffic engineering.  This includes the recent
>    extensions of the Interior Gateway Protocols (IGPs) to carry metrics
>    and resource class information about links.  This memo explores
>    additional metrics that are useful for traffic engineering.  We also
>    describe some of the subtleties associated with the use of the
>    resource class (or color) vector that has been defined in the IGP
>    extensions.
> 
> For those interested, a copy is avialable at:
> http://www.ee.duke.edu/~ag/final-papers/mpls-te-metrics.txt
> Thanks,
> -Don Fedyk and Anoop Ghanwani
>