Configuration Procedure; Configuring Lt On Meps; Configuration Prerequisites; Finding The Path Between A Source Mep And A Target Mep - H3C S5120-EI Series Operation Manual

Configuration Procedure

Follow these steps to configure LB on MEP:
To do...
Enter system view
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
system-view
cfd loopback service-instance instance-id mep
mep-id { target-mep target-mep-id | target-mac
mac-address } [ number loopback-number ]
steps to find the
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 ]
Use the command...
path between a source
Use the command...
1-9
Remarks
—
Required
Disabled by default
MEP and a target
Remarks
—
Required
Remarks
—
Required
Disabled by default
MEP: