>> Study Group 13 : Next Generation Networks
Question 5/13 - OAM and network management for NGN
(Continuation of part of Question 3/13)
- Motivation
OAM and network management capabilities are essential for any network
technology when developing a carrier-class network. It is particular
true when developing an NGN because NGN is expected to provide wide
variety of services in terms of reliability and performance including
highly reliable and high quality services, which require effective network
management. Recommendations related to such capabilities for ATM, MPLS and
Ethernet were developed by Q.3/13 in previous study periods. I.610 specifies
OAM for ATM. Y.1710, Y.1711 and Y.1712 specify OAM requirements, OAM mechanisms
and OAM interworking, respectively. Y.1730 specifies OAM requirements for Ethernet.
Several other Recommendations related to MPLS OAM and Ethernet OAM are under development.
Under the responsibility of this Question, Recommendations will be developed to provide the
specifications for OAM requirements, OAM mechanisms, and OAM interworking for realizing
NGN and other networks. This activity will be conducted with close cooperation with related
Study Groups, IETF, IEEE, Metro Ethernet Forum and other standardization bodies as necessary.
- Question
Study items to be considered include, but are not limited to:
- Clarification of requirements and mechanisms of OAM for next generation networks (NGN). This includes study on end-to-end OAM support for packet based ubiquitous networks. The OAM functions include defect detection, defect localization, topology management and performance management.
- OAM and survivability functions for IP-based networks on end-to-end and segment basis. This includes study on service OAM and transport OAM for NGN. This also includes study on coordination between OAM functions indifferent layers to allow optimisation in case where the IP-based network is built on a multi-layer network.
- OAM functions for MPLS-based networks including defect localization functions, performance measurement functions, OAM for multipoint-to-point LSPs.
- Clarification of generic OAM principles for connection-oriented circuit switched, connection-oriented packet switched and connectionless packet switched networks.
- Clarification of generic OAM principles under interworking of different network technologies. This includes network interworking and service interworking scenarios.
- Clarification of requirements and mechanisms of OAM functions for VPNs realized by various technologies (e.g., Layer 3, Layer 2 or Layer 1).
- OAM functions for Ethernet-based networks. This includes defect detection, defect localization and performance measurement functions. OAM functions should be able to be applied to both point-to-point and multipoint-to-multipoint networks.
- Tasks
Tasks include but are not limited to:
- Preparation of Recommendation on OAM requirements and framework for NGN.
- Preparation of Recommendation on OAM mechanisms for NGN.
- Preparation of Recommendations on MPLS OAM mechanisms including defect localization functions, performance management functions (if necessary) and support of multipoint-to-point LSPs.
- Preparation of Recommendation on OAM functions for networks under interworking of different network technologies.
- Preparation of Recommendation on OAM functions for VPNs realized by various technologies.
- Recommendation on OAM functions for Ethernet-based networks including support of multipoint-to-multipoint networks.
- Relationships
Recommendations: I- and Y-series
Questions: Q.2, 3 and 9/13
Study Groups: ITU-T Study Groups 4 and 15
Standardisation bodies fora and consortia:
IETF working groups related to network management and OAM
IEEE 802.1 and 802.3 working groups
MEF
MPLS and Frame Relay Alliance
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