Dell PowerConnect 8100 CLI Reference Guide - Page 437

16 Ethernet CFM Commands Connectivity Fault Management (CFM) is the OAM Protocol provision for end-to-end service layer OAM in carrier Ethernet networks. CFM provides mechanisms to support the operator in performing connectivity checks, fault detection, fault verification and isolation, and fault notification per service in the network domain of interest. Unlike Ethernet OAM defined in IEEE 802.3ah, where the faults are detected and notified on a single point-to-point IEEE Std. 802.3 LAN, this specification deals with the fault diagnosis at service layer across networks comprising multiple LANs, including LANs other than 802.3 media. PowerConnect CFM supports the following functionality: • Path discovery (linktrace message) • Fault detection (continuity check message) • Fault verification and isolation (loopback and linktrace messages) • Fault notification (alarm indication signal or SNMP trap) Commands in this Chapter This chapter explains the following commands: ethernet cfm domain service ethernet cfm cc level ethernet cfm mep level ethernet cfm mep enable ethernet cfm mep active ping ethernet cfm traceroute ethernet cfm show ethernet cfm errors show ethernet cfm domain show ethernet cfm maintenance-points local show ethernet cfm maintenance-points remote Ethernet CFM Commands 437