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Command Line Interface
4-218
4
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,
spanning-tree
spanning-disabled
Disables spanning tree for an interface IC 4-227
spanning-tree cost Configures the spanning tree path cost of an interface IC 4-227
spanning-tree port-priority Configures the spanning tree priority of an interface IC 4-228
spanning-tree edge-port Enables fast forwarding for edge ports IC 4-229
spanning-tree portfast Sets an interface to fast forwarding IC 4-230
spanning-tree link-type Configures the link type for RSTP/MSTP IC 4-231
spanning-tree
loopback-detection
Enables BPDU loopback detection for the port IC 4-231
spanning-tree
loopback-detection
release-mode
Configures loopback release mode for the port IC 4-232
spanning-tree
loopback-detection trap
Enables BPDU loopback SNMP trap notification for the
port
IC 4-233
spanning-tree mst cost Configures the path cost of an instance in the MST IC 4-233
spanning-tree mst
port-priority
Configures the priority of an instance in the MST IC 4-234
spanning-tree
protocol-migration
Re-checks the appropriate BPDU format PE 4-235
show spanning-tree Shows spanning tree configuration for the common
spanning tree (i.e., overall bridge), a selected interface, or
an instance within the multiple spanning tree
PE 4-235
show spanning-tree mst
configuration
Shows the multiple spanning tree configuration PE 4-237
Table 4-58 Spanning Tree Commands (Continued)
Command Function Mode Page