Spanning-Tree Guard - Alaxala AX1250S Software Manual

spanning-tree guard

Sets the guard functionality for the applicable ports. This command is applied to the
applicable PVST+, single-spanning-tree, and multiple-spanning-tree ports.
Input format
To set or change information:
spanning-tree guard { loop | none | root }
To delete information:
no spanning-tree guard
Input mode
(config-if)
Parameters
{ loop | none | root }
loop
functionality does not operate for multiple spanning trees.
none
root
1.
2.
Default behavior
For the loop guard functionality: The setting of the
command settings is used.
For the root guard functionality: The command does not operate.
Impact on communication
None
When the change is applied
Loop guard setting:


Root guard setting:

: The loop guard functionality is applied to the applicable ports. The loop guard
: Stop operation of the loop guard functionality for the applicable ports.
: The root guard functionality is applied to the applicable ports.
Default value when this parameter is omitted:
This parameter cannot be omitted.
Range of values:
loop , none , or root
When the spanning-tree portfast default
portfast command is set, the loop guard setting is not applied.
If the spanning-tree portfast default
portfast command settings have been deleted, loop guard operation starts
immediately.
The change takes effect immediately after it is made.
spanning-tree loopguard default
command or the
command and spanning-tree
spanning-tree guard
spanning-tree
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