Enabling Ccm; Enabling Cross-Checking; Sending Loopback Messages And Responses - Dell S4820T Configuration Manual

Enabling CCM

To enable CCM, use the following commands.
1. Enable CCM.
ECFM DOMAIN mode
no ccm disable
The default is Disabled.
2. Configure the transmit interval (mandatory). The interval specified applies to all MEPs in the domain.
ECFM DOMAIN mode
ccm transmit-interval seconds
The default is 10 seconds.

Enabling Cross-Checking

To enable cross-checking, use the following commands.
1. Enable cross-checking.
ETHERNET CFM mode
mep cross-check enable
The default is Disabled.
2. Start the cross-check operation for an MEP
ETHERNET CFM mode
mep cross-check mep-id
3. Configure the amount of time the system waits for a remote MEP to come up before the cross-
check operation is started.
ETHERNET CFM mode
mep cross-check start-delay number

Sending Loopback Messages and Responses

Loopback message and response (LBM, LBR), also called Layer 2 Ping, is an administrative echo
transmitted by MEPs to verify reachability to another MEP or MIP within the maintenance domain. LBM
and LBR are unicast frames.
• Send a Loopback message
EXEC Privilege mode
ping ethernet domain name ma-name ma-name remote {mep-id | mac-addr mac-
address}source {mep-id | port interface}
94
802.1ag