Y.1731 is an

international standard An international standard is a technical standard developed by one or more international standards organizations. International standards are available for consideration and use worldwide. The most prominent such organization is the International O ...

that defines Operations, Administration and Maintenance (OAM) functions and mechanisms for

Ethernet Ethernet ( ) is a family of wired computer networking technologies commonly used in local area networks (LAN), metropolitan area networks (MAN) and wide area networks (WAN). It was commercially introduced in 1980 and first standardized in 198 ...

-based networks.

History

The standard was first developed in 2006 by the Standardization Sector of the

International Telecommunication Union The International Telecommunication Union (ITU)In the other common languages of the ITU: * * is a list of specialized agencies of the United Nations, specialized agency of the United Nations responsible for many matters related to information ...

(

ITU-T The International Telecommunication Union Telecommunication Standardization Sector (ITU-T) is one of the three Sectors (branches) of the International Telecommunication Union (ITU). It is responsible for coordinating Standardization, standards fo ...

) in

ITU-T Study Group 13 The ITU-T Study Group 13 (SG13) is a statutory group of the ITU Telecommunication Standardization Sector (ITU-T) concerned with future networks and emerging network technologies, infrastructure and cloud computing, including the networking aspe ...

, publishing the original version, as well as a revised version in 2008. From 2010 revisions are done in Study Group 15, beginning with an amendment in 2010. Further major revisions followed in 2011, 2013, and most recently 2015 (as well as a number of amendments).

Definitions

Y.1731 defines: * Maintenance domains, their constituent maintenance points, and the managed objects required to create and administer them * The relationship between maintenance domains and the services offered by

VLAN A virtual local area network (VLAN) is any broadcast domain that is partitioned and isolated in a computer network at the data link layer ( OSI layer 2).IEEE 802.1Q-2011, ''1.4 VLAN aims and benefits'' In this context, virtual refers to a ...

-aware bridges and provider bridges * The protocols and procedures used by maintenance points to maintain and diagnose connectivity faults within a maintenance domain * Performance monitoring

References

{{reflist ITU-T Y Series Recommendations