|
ITU-T Study Group 15 List of Questions Under Study (Study Period 2005-2008) |
|
ITU-T SG 15 Question 12/15 |
|
Transport network architectures
(Continuation of Question 12/15)
(revised to incorporate QP/13(Q21/15))
- Motivation
Transport network architecture Recommendations (G.805, G.809) and technology
specific network architecture Recommendations (G.803, G.872, G.8010 and I.326)
have been established and are widely used. As operating experience is gained
with employing current transport network technologies and new technologies
evolve (e.g. variable size packets, high-speed transport networks), new
Recommendations need to be developed, in close cooperation with the
standardization activities on transport network systems and equipment.
Moreover, requirements for new transport network interfaces need to be studied.
The Requirements and Architecture of the Automatically Switched Optical
Network (G.807, G.8080) have also been developed to enhance the capability
to manage connections in the transport networks. This architecture requires
enhancement to support more advanced applications.
The following major Recommendations, in force at the time of approval of his
Question, fall under its responsibility: G.803, G.805, G.807, G.809,
G.872, G.8010/Y.1306, G.8080/Y.1304, I.326
- Question
- What new or modifications to existing Recommendations are required to
- refine and enhance the specification of Transport Network Architecture,
including enhancements to G.803, G.805, G.809, G.872, G.8010, I.326?
- refine and enhance Automatically Switched Optical Network (ASON)
Architecture and Requirements, including enhancements to Recommendations
G.807 and G.8080?
- specify the support of packet client layers over a transport network?
- specify the client server relationships between the various network
modes CO-CS, CO-PS and CLPS?
Study items to be considered include, but are not limited to:
- Next generation transport network architecture
- Converged transport networks
- Packet over transport architecture
- Transport networks using an Optical Packet server layer network
- Core/access convergence technologies
- Architecture of service management
- Transport via satellite networks
- Tasks
Tasks include, but are not limited to:
- Maintenance of Recommendations I.326, G.803, G.805, G.807, G.809, and G.872
- Refinement and enhancement of Recommendations G.8080, G.8010
- Functional architecture of MPLS networks
Note: An up-to-date status of work under this Question is contained in the
SG 15 Work Programme.
- Relationships
- Recommendations:
- Questions:
- Q3/13, Q5/13, Q2/15, Q3/15, Q6/15, Q9/15, Q11/15, Q13/15 and Q14/15
- Study Groups:
- ITU-T SG 4 on TMN
- ITU-T SG 13 working on NGN, MPLS, IP and NGN OAM
- ITU-R Study Groups on broadcasting and mobile aspects
- Standardization bodies, forums and consortia:
- IETF on Optical Control Plane Issues, MPLS, and MPLS extensions
- IEEE 802 on Ethernet Issues
- MEF on Ethernet Issues
- OIF on Optical Control Plane Issues
- TMF on Management and Control Issues
|
|
