Accton Technology 24/48-Port, ES4548D, ES4524D manual Show spanning-tree

51 Spanning Tree Commands

Command Mode

Privileged Exec

Command Usage

If at any time the switch detects STP BPDUs, including Configuration or Topology Change Notification BPDUs, it will automatically set the selected interface to forced STP-compatible mode. However, you can also use the spanning-treeprotocol-migrationcommand at any time to manually re-check the appropriate BPDU format to send on the selected interfaces (i.e., RSTP or STP-compatible).

Example

Console#spanning-tree protocol-migration eth 1/5

Console#

show spanning-tree

This command shows the configuration for the common spanning tree (CST) or for an instance within the multiple spanning tree (MST).

Syntax

show spanning-tree [interface mst instance_id]

•interface

•ethernet unit/port

-unit - Stack unit. (Range: Always 1)

-port - Port number. (Range: 1-24/48)

•port-channel channel-id(Range: 1-24)

•instance_id - Instance identifier of the multiple spanning tree. (Range: 0-4094, no leading zeroes)

Default Setting

None

Command Mode

Privileged Exec

Command Usage

•Use the show spanning-treecommand with no parameters to display the spanning tree configuration for the switch for the Common Spanning Tree (CST) and for every interface in the tree.

•Use the show spanning-treeinterface command to display the spanning tree configuration for an interface within the Common Spanning Tree (CST).

•Use the show spanning-tree mst instance_id command to display the spanning tree configuration for an instance within the Multiple Spanning Tree (MST).

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