Displaying Spanning Tree Information - D-Link DWS-1008 User Manual

DWS-1008 User's Manual

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
Displaying STP Bridge and Port Information
To display STP bridge and port information, use the following command:
show spantree [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.
To list only the ports that are in the active (forwarding) state, enter the active option. To
display STP information for VLAN mauve, type the following command:
DWS-1008# show spantree vlan mauve
VLAN 3
Spanning tree mode
Spanning tree type
Spanning tree enabled
Designated Root
Designated Root Priority
Designated Root Path Cost
Designated Root Port
Root Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Bridge ID MAC ADDR
Bridge ID Priority
Bridge Max Age 20 sec Hello Time 2 sec Forward Delay 15 sec
Port
------------------------------------------------------------------------------
1
2
3
4
5
6
In this example, VLAN mauve contains ports 1 through 6. Ports 1 and 4 are forwarding
traffic. The other ports are blocking traffic.
D-Link Systems, Inc. D-Link Systems, Inc.
PVST+
IEEE
00-02-4a-70-49-f7
32768
19
1
00-0b-0e-02-76-f7
32768
Vlan Port-State
1 Forwarding
1 Blocking
1 Blocking
1 Forwarding
1 Blocking
1 Blocking
Cost Prio Portfast
19 128 Disabled
19 128 Disabled
19 128 Disabled
19 128 Disabled
19 128 Disabled
19 128 Disabled
Configuring and Managing STP
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