[ns] Re: Diffserv Model for NS 2.1b5 available from Nortel Networks Open I P Environment Group

[Brian E Carpenter <brian@hursley.ibm.com>]

Peter,

Great. I've cc'ed the diffserv implementation list too.

Is there a reason you don't include the Default & Class Selector PHBs?
They are a fundamental part of diffserv.

  Brian

> Peter Pieda wrote:
> 
> The Open IP Environment group at Nortel Networks is releasing the
> Diffserv NS model that it has used for much of its Diffserv simulation
> work over the last 2 years.  The model files and some documentation
> are available from http://www7.nortel.com:8080/CTL/.
> The current version is compatible with the 2.1b5 release of NS.
> 
> This model follows the Diffserv architecture in that a node can have
> Edge or Core capabilities. This Diffserv  model includes many of the
> popular PHBs, Meters, and Policers available at the IETF today. It
> offers rudimentary classification capability.
> 
> The model has been found to provide suitably similar results in
> comparison with real world Diffserv products. Many of the results from
> some of our recent Diffserv-related papers were obtained using this
> model.
> 
> The Model has the following capabilities:
>     - Per Hop Behaviors (PHB):
>         * Assured Forwarding,
>         * Expedited Forwarding.
>     - Meters/Policers:
>         * TSW 2 Color Marker (TSW2CM)
>         * TSW 3 Color Marker (TSW3CM),
>         * Single Rate 3CM (srTCM),
>         * Two Rate 3CM (trTCM),
>         * 2 Color Token Bucket.
>     - Active Queue Management (AQM):
>         * RIO-Coupled
>         * RIO-Decoupled,
>         * WRED.
>     - Schedulers:
>         * WRR,
>         * WIRR
>         * RR.
> 
> Peter Pieda
> 613-765-3999
> Nortel Networks