[Dcpel] Dcpel BoF support

[Olivier Dugeon <[e-mail]>]

Hi Kahtleen and all,

I saw some days ago your announce for the Dcpel BoF, and I'm very enthousiste about your initiative. Indeed, I'm working for 5 years now in the field of QoS control and especially the control plane of IP network. My past research concern an european IST project named CADENUS (http://www.cadenus.fokus.fraunhofer.de" rel="nofollow">http://www.cadenus.fokus.fraunhofer.de) which aimed to define a QoS framework and also follow on  the TEQUILA one (http://www.ist-tequila.org" rel="nofollow">http://www.ist-tequila.org) . Now I'm involve in a new european project named EuQoS (http://www.euqos.org" rel="nofollow">http://www.euqos.org) which have for goal to study the end-to-end QoS over heterogeneous network. Inside France Telecom, I also conducting projects in this field area, and, inside this scope, have established a great collaboration with Operax people.

In june, we organized a joint QoS workshop with EuQoS and Mescal project. Proceeding of this workshop could be found at http://www.euqos.org/shownews.php?idnews=9" rel="nofollow">http://www.euqos.org/shownews.php?idnews=9 or at http://www.mescal.org/EEQoS/index.html" rel="nofollow">http://www.mescal.org/EEQoS/index.html which could give you a good overview of the start of the art of the european research in this area. The conclusion of this workshop was about the creation of a Resource Management BoF for the control plane of IP network. A dedicated mailing list have been created for this purpose to carrefully prepare the BoF since many attemps was unsuccessfull during the past (for example SLS BoF, NSIS off-path and so on). But, this attempt didn't encounter success. So, it was a pleasure to discover your initiative and to joint it.

From the EuQoS board, many peoples have express their interrest for this BoF. Inside France Telecom, I already got interests from my colleagues for such study, and of course, to support this BoF.

Concerning the charter, in our initiative, we intend to not only focus on DiffServ to enforce QoS in the network. Our goal was more to define a Resource Manager framework with the corresponding interface/protocols around it:

- Topology acquisition
- Inter Resouce Manager protocol both for intra and inter domain SLS exchange
- Service request interface
- Devices configuration which in fact have link to COPS and netconf WG
- Link to PCE

We have volunteer exclude business aspect as well as the Call Admission Control algorithm which, in our opinion are not in the scope of the IETF. In parallel, and for the framework, we think that we must seperate what is devoted for the provisionning of resources and the usage of the resources itself (i.e. the per flow control). In fact, it could be related to the NSIS off-path BoF attempt which occur some time ago.

So, do you think the charter must be only focus on DiffServ or could it be open to other QoS enforcement mechanism ? Or, for the strategy, is it preferable to focus on DiffServ, and after the WG created, open the scope to other technology ?

I'm also very confident in this attempt since this kind of functions are now studied in various place:

- The Multi Switching Forum (MSF) have already identified a such function (Bandwidth Manager) for VoIP. The document was written by Operax people.
- The ETSI-TISPAN have almost achieve the specification of the RACS (Resource Allocation Control Subsystem) which embedded the RACF (Resource Allocation Control Function) for the fixed/mobile IMS convergence.
- 3Gpp has already specify such function in Release R6 for the IMS (IP Multemedia Subsystem)
- The ITU-T NGN Focus Group doing a parallel work as the ETSI, but including the intra domain and in a more general way as the IMS
- And recently the DSL Forum has lunch a new Work Item about the Policy Control Framework.

Finally, the IETF is the only place where such study is not yet conduct.

I not planned to attend the Vancouver meeting, but people from the EuQoS board as well as the France Telecom delegation could attend the BoF.

Best regards,

Olivier Dugeon

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