Information Commands
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Table 25 Common Internal Spanning Tree parameter descriptions
Parameter Description
Role
Shows the current role of this port in the Spanning Tree. The port role can be one of
the following: Designated (DESG), Root (ROOT), Alternate (ALTN), Backup (BKUP),
Master (MAST).
Designated Bridge
Shows information about the bridge connected to each port, if applicable. Information
includes the priority (hex) and MAC address of the Designated Bridge.
Designated Port
The port ID of the port on the Designated Bridge to which this port is connected.
Information includes the port priority (hex) and the port number (hex).
Hello
The hello time parameter specifies, in seconds, how often the root bridge transmits a
configuration bridge protocol data unit (BPDU). Any bridge that is not the root bridge
uses the root bridge hello value.
Type
Type of link connected to the port, and whether the port is an edge port. Link type
values are AUTO, P2P, or SHARED.
Trunk group information
The following command displays Trunk Group information:
show portchannel information
Command mode: All
Trunk group 1, Enabled
port state:
20: STG 1 forwarding
21: STG 1 forwarding
When trunk groups are configured, you can view the state of each port in the various trunk groups.
NOTE: If Spanning Tree Protocol on any port in the trunk group is set to forwarding, the remaining
ports in the trunk group are set to forwarding.
