R3303-HP HSR6800 Routers High Availability Command Reference

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Use undo cfd linktrace auto-detection to disable this function.
Syntax
cfd linktrace auto-detection [ size size-value ]
undo cfd linktrace auto-detection
Default
This function is disabled.
Views
System view
Default command level
2: System level
Parameters
size size-value: Specifies the size of the buffer used to store the auto-detection result, in the range of 1 to
100 (in terms of sending times).
This value defaults to 5, which means the buffer stores the results of the recent five auto-detections.
Usage guidelines
After LT messages automatic sending is enabled, if the source MEP fails to receive the CCMs from the
target MEP within 3.5 times the sending interval, the link between the two is regarded as faulty and LTMs
will be sent out. (The destination of the LTMs is the target MEP, and the TTL field value is 255.) Based on
the LTRs that echo back, the fault source can be located.
Once you disable LT messages automatic sending, the content stored in the buffer will be removed.
Examples
# Enable automatic LT messages sending, and specify the size of the buffer used to store the
auto-detection result to 100 (in terms of sending times).
<Sysname> system-view
[Sysname] cfd linktrace auto-detection size 100
Related commands
cfd linktrace
cfd loopback
Use cfd loopback to enable LB function so that LBMs can be sent from the source MEP to the target MP,
and LBR messages can be received.
Syntax
cfd loopback service-instance instance-id mep mep-id { target-mep target-mep-id | target-mac
mac-address } [ number number ]
Default
LB is not enabled.
Views
Any view