Netgear M4300-24X (XSM4324CS) - Stackable Switches with Full PoE+ Provisioning ソフトウェアガイド

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Switching Commands 
368
M4200 and M4300 Series ProSAFE Managed Switches 
debug dynamic ports
This command enables debug messages that are related to dynamic ports, that is, combo 
ports that are capable of detecting the media type (SFP [fiber] or Ethernet [copper]).
no debug dynamic ports
This command disables debug messages that are related to dynamic ports, that is, combo 
ports that are capable of detecting the media type (SFP [fiber] or Ethernet [copper]).
Spanning Tree Protocol Commands
This section describes the commands you use to configure Spanning Tree Protocol (STP). 
STP helps prevent network loops, duplicate messages, and network instability.
Note:
STP is enabled on the switch and on all ports and LAGs by default.
If STP is disabled, the system does not forward BPDU messages.
spanning-tree
This command sets the spanning-tree operational mode to enabled.
no spanning-tree
This command sets the spanning-tree operational mode to disabled. While disabled, the 
spanning-tree configuration is retained and can be changed, but is not activated.
Format
debug dynamic ports
Mode
Privileged EXEC
Format
no debug dynamic ports
Mode
Privileged EXEC
Default
enabled
Format
spanning-tree
Mode
Global Config
Format
no spanning-tree
Mode
Global Config