32-33
Cisco ME 3800X and 3600X Switch Software Configuration Guide
OL-23400-01
Chapter 32 Configuring Ethernet OAM, CFM, and E-LMI
Configuring E-LMI
OAM manager, which streamlines interaction between any two OAM protocols, handles the interaction
between CFM and E-LMI. This interaction is unidirectional, running only from OAM manager to E-LMI
on the UPE side of the switch. Information is exchanged either as a result of a request from E-LMI or
triggered by OAM when it received notification of a change from the OAM protocol. This type of
information is relayed:
• Remote UNI name and status
• Remote UNI counts
The ME 3800X and ME 3600X switch can be only a customer-edge device.
Configuring E-LMI
Most E-LMI configuration occurs on the PE switch on the interfaces connected to the CE device. On the
CE switch, you only need to enable E-LMI on the connecting interface.
The switch supports only E-LMI-CE configuration.
• Default E-LMI Configuration, page 32-33
• E-LMI Configuration Guidelines, page 32-33
• Enabling E-LMI, page 32-34
• Enabling Ethernet OAM, page 32-36
• Ethernet OAM and CFM Configuration Example, page 32-36
Default E-LMI Configuration
Ethernet LMI is globally disabled by default.
When you globally enable E-LMI by entering the ethernet lmi global global configuration command,
it is automatically enabled on all interfaces. You can also enable or disable E-LMI per interface to
override the global configuration. The E-LMI command that is given last is the command that has
precedence.
There are no UNIs defined. UNI bundling service is bundling with multiplexing.
E-LMI Configuration Guidelines
The switch supports E-LMI only for the customer edge. The provider side of the connection must be
running CFM and E-LMI.
• E-LMI is not supported on routed ports, EtherChannel port channels or ports that belong to an
EtherChannel.
• You cannot configure E-LMI on VLAN interfaces.
• You must enter the ethernet lmi ce global configuration command to enable the switch or interface
in customer-edge mode.
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