1-4
Description
Use the cfd linktrace command to find the path between the specified MEP and the destination MEP,
which is achieved through the transmission of LTMs between the two and detection of the responding
LTRs.
Related commands: cfd linktrace auto-detection.
Examples
The output information varies as different CFD protocol versions are used.
# Identify the path between MEP 1101 and MEP 2001 in service instance 1 when the standard version
of IEEE 802.1ag is used.
<Sysname> system-view
[Sysname] cfd version standard
[Sysname] cfd linktrace service-instance 1 mep 1101 target-mep 2001
Linktrace to MEP 2001 with the sequence number 1101-43361
MAC Address TTL Last MAC Relay Action
0010-FC00-6512 63 0010-FC00-6500 Hit
# Identify the path between MEP 1101 and MEP 2001 in service instance 1 when IEEE 802.1ag draft 5.2
is used.
<Sysname> system-view
[Sysname] cfd version draft5
[Sysname] cfd linktrace service-instance 1 mep 1101 target-mep 2001
Linktrace to MEP 2001 with the sequence number 1101-43361 :
MAC Address TTL Forwarded Relay Action
0010-FC00-6512 63 No None
# Identify the path between MEP 1101 and MEP 2001 in service instance 1 when the IEEE 802.1ag draft
5.2 interim version is used.
<Sysname> system-view
[Sysname] cfd version draft5-plus
[Sysname] cfd linktrace service-instance 1 mep 1101 target-mep 2001
Linktrace to MEP 2001 with the sequence number 1101-43361 :
MAC Address TTL Forwarded Relay Action
0010-FC00-6512 63 No None
Table 1-2 cfd linktrace command output description
Field Description
Linktrace to MEP 2001 with the
sequence number 1101-43361
Linktrace to MEP 2001 with the sequence number 1101-43361
MAC Address Source MAC address in the LTR messages
TTL Hop count when the LTM passes the device
Last MAC MAC address of the last-hop device the LTM passes
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