C
HAPTER
14
| Basic Administration Protocols
Connectivity Fault Management
– 536 –
â–
MAC Address – MAC address of a remote MEP that is the target of
a link trace message. This address can be entered in either of the
following formats: xx-xx-xx-xx-xx-xx or xxxxxxxxxxxx
◆ TTL – The time to live of the link trace message. (Range: 0-255 hops)
WEB INTERFACE
To transmit link trace messages:
1. Click Administration, CFM.
2. Select Transmit Link Trace from the Step list.
3. Select an entry from MD Index and MA Index.
4. Specify the source MEP, the target MEP using either its MEP identifier or
MAC address, and set the maximum number of hops allowed in the TTL
field.
5. Click Apply.
6. Check the results in the Link Trace cache (see "Displaying the
Link Trace Cache").
Figure 308: Transmitting Link Trace Messages
TRANSMITTING LOOP
BACK MESSAGES
Use the Administration > CFM (Transmit Loopback) page to transmit
Loopback Messages (LBMs). These messages can be used to isolate or
verify connectivity faults by submitting a request to a target node (i.e., a
remote MEP or MIP) to echo the message back to the source.
CLI REFERENCES
â—† "CFM Commands" on page 1319
COMMAND USAGE
â—† Loopback messages can be used for fault verification and isolation after
automatic detection of a fault or receipt of some other error report.
Loopback messages can also used to confirm the successful restoration
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