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 Monday, February 06, 2006

The ITU-T Newslog has news on a new ITU-T standard (ITU-T Recommendation, Y.1731) which will allow operators offering Ethernet services to use OAM (operations, administration, and maintenance) mechanisms to facilitate network operation and troubleshooting.

Recommendation Y.1713 gives user-plane OAM functionality in Ethernet networks. The architectural basis for this Recommendation is the Ethernet specification G.8010. A previous Recommendation Y.1730 served as a prelude to Y.1731 outlining the OAM requirements of operators. Joncour says that Y.1731 was developed in close collaboration with the Institute of Electrical and Electronics Engineers (IEEE) group 802.1. This group is also preparing a standard (802.1ag - Connectivity Fault Management) devoted to Ethernet OAM aspects. IEEE 802.1ag defines a subset of the functions/PDUs described in Y.1731. Regular communications between the two groups ensured alignment of the description of the common features.