draft-ietf-mboned-multiaaa-framework-11.txt   draft-ietf-mboned-multiaaa-framework-12.txt 
mboned H. Satou, mboned H. Satou,
Internet-Draft H. Ohta, Internet-Draft H. Ohta,
Intended status: Informational T. Hayashi, Intended status: Informational T. Hayashi,
Expires: September 6, 2010 NTT Expires: February 25, 2011 NTT
C. Jacquenet C. Jacquenet
France Telecom France Telecom
H. He H. He
Nortel Nortel
March 5, 2010 August 24, 2010
AAA and Admission Control Framework for Multicasting AAA and Admission Control Framework for Multicasting
draft-ietf-mboned-multiaaa-framework-11 draft-ietf-mboned-multiaaa-framework-12
Abstract Abstract
IP multicast-based services, such as TV broadcasting or IP multicast-based services, such as TV broadcasting or
videoconferencing raise the issue of making sure that potential videoconferencing raise the issue of making sure that potential
customers are fully entitled to access the corresponding contents. customers are fully entitled to access the corresponding contents.
There is indeed a need for service and content providers to identify There is indeed a need for service and content providers to identify
users (if not authenticate, especially within the context of users (if not authenticate, especially within the context of
enforcing electronic payment schemes) and to retrieve statistical enforcing electronic payment schemes) and to retrieve statistical
information for accounting purposes, as far as content and network information for accounting purposes, as far as content and network
usage are concerned. This memo describes the framework for usage are concerned. This memo describes the framework for
specifying the Authentication, Authorization and Accounting (AAA) specifying the Authorization, Authentication and Accounting (AAA)
capabilities that could be activated within the context of the capabilities that could be activated within the context of the
deployment and the operation of IP multicast-based services. This deployment and the operation of IP multicast-based services. This
framework addresses the requirements presented in "Requirements for framework addresses the requirements presented in "Requirements for
Accounting, Authentication and Authorization in Well Managed IP Accounting, Authentication and Authorization in Well Managed IP
Multicasting Services" [I-D.ietf-mboned-maccnt-req]. The memo Multicasting Services" [I-D.ietf-mboned-maccnt-req]. The memo
provides a basic AAA enabled model as well as an extended fully provides a basic AAA enabled model as well as an extended fully
enabled model with resource and admission control coordination. enabled model with resource and admission control coordination.
Status of this Memo Status of this Memo
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and may be updated, replaced, or obsoleted by other documents at any and may be updated, replaced, or obsoleted by other documents at any
time. It is inappropriate to use Internet-Drafts as reference time. It is inappropriate to use Internet-Drafts as reference
material or to cite them other than as "work in progress." material or to cite them other than as "work in progress."
The list of current Internet-Drafts can be accessed at The list of current Internet-Drafts can be accessed at
http://www.ietf.org/ietf/1id-abstracts.txt. http://www.ietf.org/ietf/1id-abstracts.txt.
The list of Internet-Draft Shadow Directories can be accessed at The list of Internet-Draft Shadow Directories can be accessed at
http://www.ietf.org/shadow.html. http://www.ietf.org/shadow.html.
This Internet-Draft will expire on September 6, 2010. This Internet-Draft will expire on February 25, 2011.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1. Purpose and Background . . . . . . . . . . . . . . . . . . 3 1.1. Purpose and Background . . . . . . . . . . . . . . . . . . 3
2. Definitions and Abbreviations . . . . . . . . . . . . . . . . 4 2. Definitions and Abbreviations . . . . . . . . . . . . . . . . 4
2.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . 4 2.1. Definitions . . . . . . . . . . . . . . . . . . . . . . . 4
2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 5 2.2. Abbreviations . . . . . . . . . . . . . . . . . . . . . . 5
3. Common use models and network architecture implications . . . 6 3. Common use models and network architecture implications . . . 6
4. Framework and Roles of Entities . . . . . . . . . . . . . . . 7 4. Framework and Roles of Entities . . . . . . . . . . . . . . . 7
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The content may be associated with (or managed by) a specific CP. In The content may be associated with (or managed by) a specific CP. In
this case, when the user selects content, the CP is automatically this case, when the user selects content, the CP is automatically
selected. selected.
Requests for multicast sent by the user to a selected NSP should Requests for multicast sent by the user to a selected NSP should
include enough information not only for authentication by the CP but include enough information not only for authentication by the CP but
also for CP selection and admission control by the NSP. also for CP selection and admission control by the NSP.
When an NSP receives a request for multicast from a user, the NSP When an NSP receives a request for multicast from a user, the NSP
requests the appropriate CP to make sure that the user is entitled to requests the appropriate CP to make sure that the user is entitled to
access the corresponding content as the NSP is responsible for access the corresponding content As the NSP is responsible for
managing its network resources, the NSP may perform admission managing its network resources, the NSP may perform admission
control.The NSP will allow access to the multicast service, depending control.The NSP will allow access to the multicast service, depending
on both the response sent by the CP and the availability of resources on both the response sent by the CP and the availability of resources
operated by the NSP. That is, the NSP will forward multicast traffic operated by the NSP. That is, the NSP will forward multicast traffic
towards the user only when the NSP has 1) made sure the user is towards the user only when the NSP has 1) made sure the user is
entitled to access the network resources operated by the NSP, 2) entitled to access the network resources operated by the NSP, 2)
received a confirmation from the CP that the user is entitled to received a confirmation from the CP that the user is entitled to
access the content and (possibly) 3) determined that the network access the content and (possibly) 3) determined that the network
resources (e.g. bandwidth) are sufficient to deliver the multicast resources (e.g. bandwidth) are sufficient to deliver the multicast
traffic to the user with the relevant level of quality. When neither traffic to the user with the relevant level of quality. When neither
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meet the requirements. Further work should be done to specify the meet the requirements. Further work should be done to specify the
interfaces between the user and NSP, NAS and mAAA, mAAA and MACF and interfaces between the user and NSP, NAS and mAAA, mAAA and MACF and
NSP-mAAA and CP-AAA (presented in 5.2.) NSP-mAAA and CP-AAA (presented in 5.2.)
10. Normative References 10. Normative References
[I-D.ietf-ancp-framework] [I-D.ietf-ancp-framework]
Ooghe, S., Voigt, N., Platnic, M., Haag, T., and S. Ooghe, S., Voigt, N., Platnic, M., Haag, T., and S.
Wadhwa, "Framework and Requirements for an Access Node Wadhwa, "Framework and Requirements for an Access Node
Control Mechanism in Broadband Multi-Service Networks", Control Mechanism in Broadband Multi-Service Networks",
draft-ietf-ancp-framework-11 (work in progress), draft-ietf-ancp-framework-12 (work in progress),
July 2009. July 2009.
[I-D.ietf-mboned-maccnt-req] [I-D.ietf-mboned-maccnt-req]
Hayashi, T., He, H., Satou, H., Ohta, H., and S. Vaidya, Hayashi, T., He, H., Satou, H., Ohta, H., and S. Vaidya,
"Requirements for Multicast AAA coordinated between "Requirements for Multicast AAA coordinated between
Content Provider(s) and Network Service Provider(s)", Content Provider(s) and Network Service Provider(s)",
draft-ietf-mboned-maccnt-req-08 (work in progress), draft-ietf-mboned-maccnt-req-08 (work in progress),
July 2009. July 2009.
Authors' Addresses Authors' Addresses
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