Chapter 14: Switching Commands
254 Section III: Layer 2 Switching
off
Specifies that the port does not check the ID code in the LDF.
blocktimeout
Specifies duration in seconds when the port takes the action
specified by the action parameter.
timeout
Specifies time in seconds. The default value is 300 seconds.
none
Specifies that the port does not stop taking the action specified by
the action parameter.
Description
Use this command to specify the actions of Loop Detection.
Here are guidelines for Loop Detection:
Allied Telesis recommends the linkdown action for trunk ports.
You cannot specify the action of bcdiscard on the ports that the
Packet Strom Protection is enabled.
Allied Telesis recommends 1 second or longer for the interval
parameter and 60 seconds or longer for the blocktimeout
parameter when the action is set to linkdown.
To cancel the action that the port took when the loop is detected:
– Execute the ENABLE SWITCH PORT command.
– Execute the DISABLE SWITCH PORT command
– The port is disconnected.
– Modify the power saving mode to portoff.
Confirmation Command
“SHOW SWITCH LOOPDETECTION” on page 269
Example
The following command sets port 2 to send a LDF every 60 seconds and
to be disconnected for 3600 seconds when the loop is detected:
Manager > set switch loopdetection port=2 action=linkdown
interval=60 blocktimeout=3600
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