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Interface
LPD disabled LPD enabled
STP disabled STP enabled STP disabled STP enaabled
System
LPD disabled
STP disabled - - - -
STP enabled - STP - STP
LPD enabled
STP disabled - - LPD LPD
STP enabled - STP LPD STP
[Example]
Enable the loop detection function of LAN port #1.
SWP2(config)#interface port1.1
SWP2(config-if)#loop-detect enable
Enables the loop detection function of static logical interface #1.
SWP2(config)#interface sa1
SWP2(config-if)#loop-detect enable
Enables the loop detection function of LACP logical interface #1.
SWP2(config)#interface po1
SWP2(config-if)#loop-detect enable
Disable the loop detection function of LAN port #1.
SWP2(config)#interface port1.1
SWP2(config-if)#loop-detect disable
6.4.3 Set port blocking for loop detection
[Syntax]
loop-detect blocking switch
no loop-detect blocking
[Parameter]
switch : Set port blocking for the applicable interface
Setting value Description
enable
Enables port blocking for the applicable
interface
disable
Disables port blocking for the applicable
interface
[Initial value]
loop-detect blocking enable
[Input mode]
interface mode
[Description]
Enables or disables blocking when a loop is detected for the applicable interface.
If this is executed with the "no" syntax, the setting returns to the default.
[Note]
An LAN/SFP+ port whose settings of this command differ cannot be aggregated as a logical interface. However, in the
case of settings for an LAN/SFP+ port that is associated with an logical interface in the startup config, the setting for the
lowest-numbered port is applied to the logical interface.
This command cannot be executed for LAN/SFP+ port that belong to logical interface.
[Example]
Block if a loop is detected on LAN port #1.
SWP2(config)#interface port1.1
SWP2(config-if)#loop-detect blocking enable
Command Reference | Layer 2 functions | 215