3com WXR100 3CRWXR10095A User Manual

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Displaying Spanning Tree Information
361
Configuring Uplink
Fast Convergence
To enable or disable uplink fast convergence, use the following 
command:
set spantree uplinkfast {enable | disable}
Displaying Uplink
Fast Convergence
Information
To display uplink fast convergence information, use the following 
command:
display spantree uplinkfast [vlan vlan-id]
The following command displays uplink fast convergence information for 
all VLANs:
WX1200# display 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
For information about the display commands for the fast convergence 
features, see “Configuring and Managing STP Fast Convergence 
Features” on page 358.
Displaying STP Bridge
and Port Information
To display STP bridge and port information, use the following command:
display spantree [port port-list | vlan vlan-id] [active]
By default, STP information for all ports and all VLANs is displayed. To 
display STP information for specific ports or a specific VLAN only, enter a 
port list or a VLAN name or number. For each VLAN, only the ports 
contained in the VLAN are listed in the command output.