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S
PANNING
T
REE
C
OMMANDS
4-181
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
spanning-tree
spanning-disabled
Disables spanning tree for an interface IC 4-188
spanning-tree cost Configures the spanning tree path cost
of an interface
IC 4-188
spanning-tree
port-priority
Configures the spanning tree priority of
an interface
IC 4-189
spanning-tree edge-port Enables fast forwarding for edge ports IC 4-190
spanning-tree portfast Sets an interface to fast forwarding IC 4-191
spanning-tree link-type Configures the link type for RSTP IC 4-192
spanning-tree
protocol-migration
Re-checks the appropriate BPDU
format
PE 4-193
show spanning-tree Shows spanning tree configuration for
the common spanning tree (i.e., overall
bridge), or a selected interface.
PE 4-194
Table 4-53 Spanning Tree Commands (Continued)
Command Function Mode Page