Spanning-Tree - Supermicro SSE-G2252 User Manual

SSE-G2252/SSE-G2252P Switches User's Manual
Table 34-1. Spanning Tree Commands (Continued)
Command
spanning-tree root-guard
spanning-tree spanning-disabled
spanning-tree loopback-detection
release
spanning-tree protocol-migration
show spanning-tree
show spanning-tree mst
configuration

spanning-tree

This command enables the Spanning Tree Algorithm globally for the switch. Use the no
form to disable it.
Syntax
[no] spanning-tree
Default Setting
Spanning tree is enabled.
Command Mode
Global Configuration
Command Usage
The Spanning Tree Algorithm (STA) can be used to detect and disable network loops,
and to provide backup links between switches, bridges or routers. This allows the switch
to interact with other bridging devices (that is, an STA-compliant switch, bridge or router)
in your network to ensure that only one route exists between any two stations on the
network, and provide backup links which automatically take over when a primary link
goes down.
Example
This example shows how to enable the Spanning Tree Algorithm for the switch:
SSE-G2252(config)#spanning-tree
SSE-G2252(config)#
Function
Prevents a designated port from passing superior BPDUs IC
Disables spanning tree for an interface
Manually releases a port placed in discarding state by
loopback-detection
Re-checks the appropriate BPDU format
Shows spanning tree configuration for the common
spanning tree (i.e., overall bridge), a selected interface,
or an instance within the multiple spanning tree
Shows the multiple spanning tree configuration
34-2
Mode
IC
PE
PE
PE
PE