27
To do...
Use the command...
Remarks
Find the path between a source
MEP and a target MEP
cfd linktrace service-instance
instance-id
mep
mep-id
{
target-mep
target-mep-id
|
target-mac
mac-address
}
[
ttl
ttl-value
] [
hw-only
]
Required
Available in any view
Enter system view
system-view
—
Enable LT messages automatic
sending
cfd linktrace auto-detection
[
size
size-value
]
Required
Disabled by default.
Configuring AIS
The AIS function suppresses the number of error alarms reported by MEPs.
Follow these steps to configure AIS:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Enable AIS
cfd ais enable
Required
Disabled by default.
Configure the AIS frame
transmission level
cfd ais level
level-value
service-instance
instance-id
Required
Not configured by default.
Configure the AIS frame
transmission interval
cfd ais period
period-value
service-instance
instance-id
Optional
1 second by default.
NOTE:
•
To make an MEP in the service instance send AIS frames, you must configure the AIS frame transmission
level to be higher than the MD level of the MEP.
•
Enable AIS and configure the proper AIS frame transmission level on the target MEP, so the target MEP
can suppress the error alarms and send the AIS frame to the MD of a higher level. If you enable AIS but
do not configure the proper AIS frame transmission level on the target MEP, the target MEP can suppress
the error alarms, but cannot send the AIS frames.
Configuring LM
The LM function measures frame loss between MEPs, including the number of lost frames, the frame loss
ratio, and the average number of lost frames for the source and target MEPs.
Follow these steps to configure LM:
To do…
Use the command…
Remarks
Enter system view
system-view
—
Configure LM
cfd slm service-instance
instance-id
mep
mep-id
{
target-mac
mac-address
|
target-mep
target-mep-id
} [
number
number
]
Required
Disabled by default.