1-6
Related commands: cfd linktrace.
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
cfd loopback
Syntax
cfd loopback service-instance instance-id mep mep-id { target-mep target-mep-id | target-mac
mac-address } [ number number ]
View
System view
Default Level
2: System level
Parameters
service-instance instance-id: Specifies the service instance ID, ranging from 1 to 32767.
mep mep-id: Specifies the ID of a MEP, ranging from 1 to 8191.
target-mep target-mep-id: Specifies the ID of the destination MEP for LBM packets, ranging from 1 to
8191.
target-mac mac-address: Specifies the destination MAC address, in the format of H-H-H.
number number: Specifies the number of the LBMs packets sent, ranging from 1 to 10 and defaulting to
5.
Description
Use the cfd loopback command to enable LB function so that LBMs can be sent from the specified
MEP to other MEPs in the same service instance, and LBR messages can be received.
By default, LB is not enabled.
Examples
# Enable LB to check the status of the link between MEP 1101 and MEP 2001 in service instance 1.
<Sysname> system-view
[Sysname] cfd loopback service-instance 1 mep 1101 target-mep 2001
Loopback to 0010-FC00-6512 with the sequence number start from 1101-43404:
Reply from 0010-FC00-6512: sequence number=1101-43404
Reply from 0010-FC00-6512: sequence number=1101-43405
Reply from 0010-FC00-6512: sequence number=1101-43406
Reply from 0010-FC00-6512: sequence number=1101-43407
Reply from 0010-FC00-6512: sequence number=1101-43408
Send:5 Received:5 Lost:0
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