This chapter describes the Ethernet Connectivity Fault Management (CFM) chapter, which covers maintenance domains, services, maintenance points, MEP and CFM processing, protocol messages, continuity check, loopback, linktrace, configurable logging, hardware offload, and CFM over bundles, and includes tasks to configure domains, services, MEPs, cross-check, AIS, and Y.1731 AIS.
Ethernet CFM
This topic describes Ethernet Connectivity Fault Management (CFM), a service-level OAM protocol that provides tools for monitoring and troubleshooting end-to-end Ethernet services per VLAN, including proactive connectivity monitoring, fault verification, and fault isolation using standard Ethernet frames across the entire end-to-end Ethernet network.
Configure AIS in a CFM domain service
This topic describes how to configure Alarm Indication Signal (AIS) transmission for a Connectivity Fault Management (CFM) domain service, and configure AIS logging for the CFM domain service to indicate when AIS or LCK packets are received.
Configure AIS on a CFM interface
This topic describes how to configure Alarm Indication Signal (AIS) transmission on a Connectivity Fault Management (CFM) interface by entering interface configuration mode, enabling Ethernet CFM, and specifying the AIS interval and class of service.
Verify the CFM configuration
This topic describes the show commands used to verify the CFM configuration, including commands to display configuration errors and a list of local maintenance points.
CFM over bundles
This topic describes CFM support over bundle interfaces, bundle sub-interfaces, and bundle member interfaces, where the bundle member ports must span across line cards.