Configuring Lt On Meps - 3Com S7906E Configuration Manual

To do...
Enable LB

Configuring LT on MEPs

LT can trace the path between the specified MEP and the target MEP, and can also locate link faults by
sending LT messages automatically. The two functions are implemented in the following way:
To implement the first function, the specified MEP first sends LTM messages to the target MEP.
Based on the LTR messages in response to the LTM messages, the path between the two MEPs
can be identified.
In the latter case, after LT messages automatic sending is enabled, if a MEP fails to receive the
CCMs from the remote MEP within 3.5 sending intervals, the link between the two is regarded as
faulty and LTMs will be sent out. Based on the LTRs that echo back, the fault source can be
located.
Configuration Prerequisites
Before configuring this function, you should first complete MEP and MIP configuration tasks.
Finding the Path Between a Source MEP and a Target MEP
Follow these
To do...
Enter system view
Find the path between a source
MEP and a target MEP
Enabling Automatic LT Messages Sending
Follow these steps to enable automatic LT messages sending:
To do...
Enter system view
Enable automatic LT messages
sending
Use the command...
cfd loopback
service-instance instance-id
mep mep-id { target-mep
target-mep-id | target-mac
mac-address } [ number
number ]
steps to find the
Use the command...
system-view
cfd linktrace
service-instance instance-id
mep mep-id { target-mep
target-mep-id | target-mac
mac-address } [ ttl ttl-value ]
[ hw-only ]
Use the command...
system-view
cfd linktrace auto-detection
[ size size-value ]
path between a source
1-10
Remarks
Required
Disabled by default
MEP and a target
Remarks
—
Required
Remarks
—
Required
Disabled by default
MEP: