Reasons for the question

During the last several study periods, the ITU-T has advanced the concepts, architectures, and interface specifications of integrated services networks. DSS 2 and B-ISUP signalling recommendations have been enhanced to enable transport of connections managed by IETF defined protocols. Parameter negotiation procedures have been added to DSS 2. Further work is required to complete, improve, and maintain the existing recommendations and to improve working in wide area packed switched networks such as the Internet, including:

• QoS parameter negotiation associated with calls originating and/or terminating on endpoints of IP-based networks;
• QoS parameter negotiation associated with calls supporting IP-based services; and
• signalling of guaranteed frame rate ATM traffic capability in support of frame oriented traffic, e.g. IP packets.

Question

What new recommendations and additions to existing recommendations are required to enable flexibly managed dynamic bandwidth and to satisfy quality of service demands in connection control?

Task objectives

1) Identify requirements needed for access and network signalling recommendations to provide QoS parameter negotiation associated with calls originating and/or terminating on endpoints of IP-based networks.

Expected completion: 2Q2001.

2) Identify requirements needed for access and network signalling recommendations to provide QoS parameter negotiation associated with calls supporting IP-based services.

Expected completion: 2Q2001.

3) Identify requirements needed for access and network signalling recommendations to specify the signalling of guaranteed frame rate ATM traffic capability in support of frame oriented traffic, e.g. IP packets.

Expected completion: 4Q2000.

4) Identify requirements needed for extensions to Recommendation H.323 to provide QoS parameter negotiation associated with calls originating and/or terminating on endpoints of IP-based networks.

Expected completion: 4Q2001.

5) Identify requirements needed for access and network signalling recommendations to interwork between two MPLS/CR-LDP networks.

Expected completion: 2Q2001.

6) Identify requirements needed for access and network signalling recommendations to specify ATM-based access to and internetworking with an MPLS/CR-LDP network.

Expected completion: 4Q2001.

Relationships

The tasks of this question are related to the specification of U-plane and C-plane protocols that establish and tear down multimedia and broadband connections. The activities leading to successful completion of these tasks require interactions with IETF working groups, e.g. AVT, DIFFSERV, INTSERV, ION, MMUSIC and POLICY. Specification in this area is related to existing specifications in the ITU-T Recommendations in the Q.2xxx-series and the H.32x-series, as covered by Question 12/11.