AT-GS900M Series CLI Reference
Section III: Layer 2 Switching 253
SET SWITCH LOOPDETECTION
Syntax
set switch loopdetection port[=
port_list
|all]
[action=portdisable|linkdown|bcdiscard|none]
[interval=
interval
] [secure=on|off]
[blocktimeout=
timeout
|none]
Parameters
port_list
Specifies a list of ports. To specify multiple ports, use a comma (,)
to separate them. To specify a range of ports, use a hyphen (-).
all
Specifies all the switch ports.
action
Specifies an action when the port detects the loop. The port stops
the action after the time specified by the blocktimeout parameter
has passed.
portdisable
Specifies that the port is disabled when detecting the loop. This is
the default setting.
linkdown
Specifies that the port is disconnected when detecting the loop.
bcdiscard
Specifies that the port stops receiving broadcast frames when
detecting the loop.
none
Specifies that the port takes no action. However, the switch issues
log messages.
interval
Specifies the interval of sending a Loop Detection Frame (LDF) in
seconds. The default setting is 120 seconds.
secure
Specifies an action when the port receives an LDF.
on
Specifies that the port discards the LDF if the ID code in the LDF is
different from the effective ID code. The ID code is effective during
the specified interval. This is the default setting.
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