326 Configuring and Managing Spanning Tree Protocol
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Displaying Uplink Fast Convergence Information
To display uplink fast convergence information, use the following command:
show spantree uplinkfast [vlan vlan-id]
The following command displays uplink fast convergence information for all VLANs:
23x0# show spantree uplinkfast
VLAN port list
------------------------------------------------------------------------
1 1(fwd),2,3
In this example, ports 1, 2, and 3 provide redundant links to the network core. Port 1 is forwarding traffic. The
remaining ports block traffic to prevent a loop.
Displaying Spanning Tree Information
You can use CLI commands to display the following STP information:
• Bridge STP settings and individual port information
• Blocked ports
• Statistics
• Port fast, backbone fast, and uplink fast convergence information
Note. For information about the show commands for the fast convergence features, see
“Configuring and Managing STP Fast Convergence Features” on page 319.
