CANOGA PERKINS 9145E NID Software Version 4.10 - Manual (Page 209)

Service OAM 9145E NID Software User’s Manual
Service OAM
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Chapter 11
Service OAM
11.0 Introduction
Service OAM (SOAM) allows you to detect, isolate, and report connectivity faults that span
networks comprised of multiple LANs, and to monitor the performance of connections.
Service OAM protocols and procedures are defined in two standards: IEEE 802.1ag and ITU-T
Recommendation Y.1731. The standards specify protocols, procedures, and specific entities
required to support the discovery and verification of connectivity faults and to associate the faults
to specific devices. These entities and protocols are briefly described in paragraph 11.1.1 and
11.1.3
Both IEEE 802.1ag and ITU-T Y.1731 Service OAM procedures and entities are supported by the
9145E NID. The protocol support for these standards is shown in Table 11-1.
NOTE: There is no standard MIB for Y.1731, so the 9145E uses the 802.1ag MIB for Y.1731.
There are differences in capability for Y.1731. See Mibs.Readme.txt for more information.
11.1 Service OAM
Service OAM provides Connectivity Fault Management (CFM), path discovery, and fault
notification features that allow you to monitor end-to-end service connections, detect connectivity
faults, and isolate defects. Continuity Check Messages (CCM) and Alarm Indication Signal (AIS)
are used for connection monitoring, while Linktrace and Loopback procedures are used for fault
isolation. Paragraph 11.1.3 provides more details about Service OAM features.