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Glossary Section "Y" ( Definitions )

Guide -  Select first letter of word:
0-9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Y Yellow alarm control bit in sync byte (TS24) of TIDM, Y=0 indicates alarm.

Y.1731 ITU-T service OAM standard is similar to IEEE standard 802.1ag in that it divides a network into maintenance domains in the form of hierarchy levels. Both of these are then allocated to users, service providers and operators. CFM then assigns maintenance end points (MEPs) to the edges of each domain and maintenance intermediate points (MIPs) to ports within domains. This helps define the relationships between all entities from a maintenance perspective, to allow each entity to monitor the layers under its responsibility and easily localize problems.

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Last modified: May 14, 2014
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