Users Guide

Table Of Contents
Layer 2 Switching Commands 440
Default Configuration
This command has no default configuration.
Command Mode
User Exec mode, Privileged Exec mode, Global Configuration mode and all
Configuration submodes
User Guidelines
This command displays Ethernet interfaces configured in trunk or general
mode that are link up. Port channels are also shown if the port channel status
is up.The fields displayed are as follows:
Port—The Ethernet or port channel interface name.
Description—The configured port description.
Port Chnl—Shows the port channel if the Ethernet interface is a member
of a port channel.
M—The configured mode (T for trunk and G for General).
Participating VLANs—The participating trunk VLANs with the native
VLAN in parentheses. The output shows the port-channel participating
VLANs for interfaces bundled in a port-channel.
STP Forwarding VLANs—The VLANs in the spanning tree forwarding
state.
Command History
Command introduced in version 6.5 firmware.
Example
console(config)#show interfaces trunk
Port Description Port M Participating STP Forwarding
Chnl VLANs VLANs
--------- --------------- ----- -- ------------------- --------------------
-
Gi1/0/1 T (1)1-32 1
Gi1/0/2 T (10)1-32 10,13,16,19
Gi1/0/3 G (11)33-64 11,33-64
Gi1/0/4 Po1 T (11)33-64 1
Gi1/0/5 Po1 T (11)33-64 11,33-64