Fujitsu PRIMERGY BX900 - Spanning Tree Commands; Show Commands

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10.10 Spanning Tree Commands
This section provides detailed explanation of the spanning tree commands. Due the IEEE requirement, the
basic spanning tree (STP, 802.1d) will be removed, the STP will be simulated in the satge of the
mutli-spanning tree (MSTP, 802.1s). So the basic five stages will be different from the traditiaonal phases.
It doesn’t influnced the basic spanning tree function. This is not conflict point of the view.
The commands are divided into two functional groups:
• Show commands display spanning tree settings, statistics, and other information.
• Configuration Commands configure features and options of the switch. For every configuration
command there is a show command that displays the configuration setting.
!
This function is only provided on Switch mode.
10.10.1 Show Commands
10.10.1.1 show spanning-tree
This command displays spanning tree settings for the common and internal spanning tree. The following
details are displayed.
Syntax
show spanning-tree
Default Setting
None
Command Mode
Privileged Exec
Display Message
Bridge Priority: Configured value.
Bridge Identifier: The MAC Address for the Bridge from which the Bridge Identifiers used by the
Spanning Tree Algorithm and Protocol.
Time Since Topology Change: In seconds.
Topology Change Count: Number of times changed.
Topology Change in progress: Boolean value of the Topology Change parameter for the switch
indicating if a topology change is in progress on any port assigned to the common and internal
spanning tree.
Designated Root: The Bridge Identifier of the Root Bridge for the spanning tree instance identified by
the MSTID.
Root Path Cost: Value of the Root Path Cost parameter for the common and internal spanning tree.
Root Port Identifier: The Root Port for the spanning tree instance identified by the MSTID.