3-10
z
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 steps to find the path between a source MEP and a target MEP:
To do...
Use the command...
Remarks
Enter system view
system-view
—
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
Enabling Automatic LT Messages Sending
Follow these steps to enable automatic LT messages sending:
To do...
Use the command...
Remarks
Enter system view
system-view
—
Enable automatic LT messages
sending
cfd linktrace auto-detection
[
size size-value
]
Required
Disabled by default
Displaying and Maintaining CFD
To do...
Use the command...
Remarks
Display CFD status
display cfd status
Available in any view
Display MD configuration
information
display cfd md
Available in any view
Display MA configuration
information
display cfd ma
[ [
ma-name
]
md
md-name
]
Available in any view
Display service instance
configuration information
display cfd service-instance
[
instance-id
]
Available in any view
Display MP information
display cfd mp
[
interface
interface-type interface-number
]
Available in any view
