C
OMMAND
L
INE
I
NTERFACE
4-184
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.
spanning-tree
portfast
Sets an interface to fast forwarding IC 4-193
spanning-tree
link-type
Configures the link type for RSTP IC 4-194
spanning-tree
protocol-migration
Re-checks the appropriate BPDU format PE 4-196
show spanning-tree Shows spanning tree configuration for
the common spanning tree (i.e., overall
bridge) or a selected interface
PE 4-196
Table 4-50 Spanning Tree Commands
Command Function Mode Page
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