Dell N3200-ON EMC Networking N-Series Switches CLI Reference Guide version 6.6 - Page 441

Ethernet CFM Commands Dell EMC Networking N1500/N2200/N3200 Series Switches 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 capability deals with the fault diagnosis at service layer across networks comprising multiple LANs, including LANs other than 802.3 media. Refer to IEEE 802.1ag for an explanation of CFM. Typically, the MEP ID and maintenance association levels are assigned by the top level network service provider. Dell EMC Networking CFM is available on the N1500/N2200/N3200-ON series switches. CFM is not compatible with iSCSI optimization. Disable iSCSI optimization before enabling CFM. Dell EMC Networking 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) ethernet cfm domain Use the ethernet cfm domain command in Global Configuration mode to enter into Maintenance Domain Configuration mode for an existing domain. Use the optional level parameter to create a domain and enter into maintenance domain Configuration mode. In maintenance domain Configuration mode, maintenance associations are created and permaintenance domain services can be configured. Use the no form of the command to delete a maintenance domain. Syntax ethernet cfm domain domain-name [level 0-7] Layer 2 Switching Commands 441