[ns] RE: Diffserv Model for NS 2.1b5 available from Nortel Networks Op en IP Environment Group

["Peter Pieda" <ppieda@nortelnetworks.com>]

Title: RE: Diffserv Model for NS 2.1b5 available from Nortel Networks Open IP Environment Group

Hello,

Sorry, there is support for the default PHB (see manual for addPolicyEntry,
addPolicerEntry and addPHBEntry scripting commands).

We did not add support for the Class Selector as it was outside the focus of
our studies.

This can be easy accomplished.

This will be addressed in the next release of the model.

Thanks.

Peter Pieda
613-765-3999
Nortel Networks

-----Original Message-----
From:   Brian E Carpenter [SMTP:brian@hursley.ibm.com]
Sent:   Monday, July 24, 2000 10:32 AM
To:     Pieda, Peter [CAR:0R31:EXCH]
Cc:     'diffserv-interest@external.cisco.com'; 'ns-users@ISI.EDU'; 'ns-announce@ISI.EDU'; Ethridge, Jeremy [CAR:0R31:EXCH]; Baines, Mandeep [CAR:0R31-A:EXCH]; Seddigh, Nabil [CAR:0R31:EXCH]; Nandy, Biswajit [CAR:0C40:EXCH]; DS Implementation

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

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