3com 3CRUS2475 Manuale Utente

The following example prevents Ethernet port g1 from being the root 
port of the device. 

The show spanning-tree Privileged EXEC mode command displays 
spanning-tree configuration.

show spanning-tree [ethernet interface -number| port-channel 
port-channel-number] [instance instance-id]

show spanning-tree [detail] [active | blockedports] [instance 
instance-id]

show spanning-tree mst-configuration

■

interface -number— A valid Ethernet port.

■

port-channel-number — A valid port channel number.

■

detail — Indicates detailed information.

■

active — Indicates active ports only.

■

blockedports — Indicates blocked ports only.

■

mst-configuration— Indicates the MST configuration identifier.

■

instance-id—Specifies ID of the spanning tree instance.

This command has no default configuration.

Privileged EXEC mode

There are no user guidelines for this command.

Console(config) # interface ethernet g1

Console(config-mst) # spanning-tree guard root