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Configuring STP Features
Configuring STP Features
You complete three major steps to configure STP on the bridge:
1.
2.
3.
These sections include spanning-tree configuration information:
•
•
•
Default STP Configuration
STP is disabled by default.
Table 8-2
Setting
Bridge priority
Bridge max age
Bridge hello time
Bridge forward delay
Ethernet port path cost
Ethernet port priority
Radio port path cost
Radio port priority
The radio and Ethernet interfaces and the native VLAN on the bridge are assigned to bridge group 1 by
default. When you enable STP and assign a priority on bridge group 1, STP is enabled on the radio and
Ethernet interfaces and on the primary VLAN, and those interfaces adopt the priority assigned to bridge
group 1. You can create bridge groups for sub-interfaces and assign different STP settings to those bridge
groups.
Configuring STP Settings
Beginning in privileged EXEC mode, follow these steps to configure STP on the bridge:
Command
Step 1
configure terminal
Step 2
interface { dot11radio number | fastethernet
number }
Cisco Aironet 1400 Series Wireless Bridges Software Configuration Guide
8-8
If necessary, assign interfaces and sub-interfaces to bridge groups
Enable STP for each bridge group
Set the STP priority for each bridge group
Default STP Configuration, page 8-8
Configuring STP Settings, page 8-8
STP Configuration Examples, page 8-9
Table 8-2
Default STP Values When STP is Enabled
lists the default STP settings when you enable STP.
Default Value
32768
20
2
15
19
128
33
128
Purpose
Enter global configuration mode.
Enter interface configuration mode for radio or Ethernet
interfaces or sub-interfaces.
Chapter 8
Configuring Spanning Tree Protocol
OL-4059-01
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