Configuring Spanning Tree Protocol (STP) and IronSpan
December 2000 12 - 15
BigIron(config)# show interface brief
Port Link State Dupl Speed Trunk Tag Priori MAC Name
1/1 Down None None None None No level0 00e0.52a9.bb00
1/2 Down None None None None No level0 00e0.52a9.bb01
1/3 Down None None None None No level0 00e0.52a9.bb02
1/4 Down None None None None No level0 00e0.52a9.bb03
1/5 Down None None None None No level0 00e0.52a9.bb04
1/6 Down None None None None No level0 00e0.52a9.bb05
1/7 Down None None None None No level0 00e0.52a9.bb06
1/8 Down None None None None No level0 00e0.52a9.bb07
.
. some rows omitted for brevity
.
3/10 Down None None None None No level0 00e0.52a9.bb4a
3/11 Up Forward Full 100M None No level0 00e0.52a9.bb49
In this example, only one port, 3/11, is forwarding traffic toward the root bridge.
USING THE WEB MANAGEMENT INTERFACE
To display STP information for a specific port, use the same method as the one described in “Displaying STP
Information for an Entire Device” on page 12-7:
1. Log on to the device using a valid user name and password for read-only or read-write access. The System
configuration panel is displayed.
2. Click on the plus sign next to Monitor in the tree view to display the monitoring options.
3. Select the STP
link to display the STP bridge and port parameters.
Displaying the STP State of a Port-Based VLAN
When you display information for a port-based VLAN, that information includes the STP state of the VLAN. Use
either of the following methods to display port-based VLAN information.
USING THE CLI
To display information for a port-based VLAN, enter a command such as the following at any level of the CLI:
BigIron(config)# show vlan
Total PORT-VLAN entries: 2
Maximum PORT-VLAN entries: 16
legend: [S=Slot]
PORT-VLAN 1, Name DEFAULT-VLAN, Priority level0, Spanning tree On
Untagged Ports: (S3) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Untagged Ports: (S3) 17 18 19 20 21 22 23 24
Untagged Ports: (S4) 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
Untagged Ports: (S4) 18 19 20 21 22 23 24
Tagged Ports: None
Uplink Ports: None
PORT-VLAN 2, Name greenwell, Priority level0, Spanning tree Off
Untagged Ports: (S1) 1 2 3 4 5 6 7 8
Untagged Ports: (S4) 1
Tagged Ports: None
Uplink Ports: None
The STP state is shown in bold type in this example.