Cfd Linktrace - 3Com S7906E Command Reference Manual

Parameters
None
Description
Use the cfd enable command to enable CFD.
Use the undo cfd enable command to disable CFD.
By default, CFD is disabled.
Examples
# Enable CFD.
<Sysname> system-view
[Sysname] cfd enable

cfd linktrace

Syntax
cfd linktrace service-instance instance-id mep mep-id { target-mep target-mep-id | target-mac
mac-address } [ ttl ttl-value ] [ hw-only ]
View
System view
Default level
2: System level
Parameters
service-instance instance-id: Specifies the service instance ID, ranging from 1 to 32767.
mep mep-id: Specifies the ID of the MEP that sends LTMs, ranging from 1 to 8191.
target-map target-mep-id: Specifies the ID of the MEP that receives LTM, ranging from 1 to 8191.
target-mac mac-address: Specifies the destination MAC address, in the format of H-H-H.
ttl ttl-value: Specifies the time to live value, ranging from 1 to 255 and defaulting to 64.
hw-only: Indicates the hw-only position of the LTMs sent. When this keyword is present and the MIP
that receives LTMs cannot find the destination MAC address in its forwarding table, the MIP will not
forward these broadcast messages. Otherwise, the LTMs will be forwarded.
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
# Send LTM messages.
<Sysname> system-view
[Sysname] cfd linktrace service-instance 1 mep 1101 target-mep 2001
1-3