CLI Reference Guide-R05

Chapter 24 | CFM Commands
Link Trace Operations
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◆ When using the command line or web interface, the source MEP used by to
send a link trace message is chosen by the CFM protocol. However, when using
SNMP, the source MEP can be specified by the user.
Example
This example sends a link trace message to the specified MEP with a maximum hop
count of 25.
Console#linktrace ethernet dest-mep 2 md voip ma rd ttl 25
Console#
clear ethernet cfm
linktrace-cache
This command clears link trace messages logged on this device.
Command Mode
Privileged Exec
Example
Console#clear ethernet cfm linktrace-cache
Console#
show ethernet cfm
linktrace-cache
This command displays the contents of the link trace cache.
Command Mode
Privileged Exec
Example
Console#show ethernet cfm linktrace-cache
Hops MA IP / Alias Ingress MAC Ing. Action Relay
Forwarded Egress MAC Egr. Action
---- -------------- ----------------------- ----------------- ----------- -----
2 rd 192.168.0.6 00-12-CF-12-12-2D ingOk Hit
Not Forwarded
Console#
Table 152: show ethernet cfm linktrace-cache - display description
Field Description
Hops The number hops taken to reach the target MEP.
MA Name of the MA to which this device belongs.
IP/Alias IP address or alias of the target device’s CPU.
Forwarded Shows whether or not this link trace message was forwarded. A message
is not forwarded if received by the target MEP.
Ingress MAC MAC address of the ingress port on the target device.