Configuring Stp Features; Default Stp Configuration; Configuring Stp Settings - Cisco C3201FESMIC-TP= - 3201 Fast EN Switch Mobile Interface Card Expansion Module Software Configuration Manual

Configuring STP Features

Configuring STP Features
These sections include spanning-tree configuration information:
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Default STP Configuration

STP is disabled by default.
Table 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 interfacenumber
Step 3
bridge-group number
Step 4 no bridge-group number spanning-disabled
Book Title
8
Default STP Configuration, page 8
Configuring STP Settings, page 8
STP Configuration Examples, page 9
Table 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.
Assign the interface to a bridge group. You can number
your bridge groups from 1 to 255.
Counteract the command that automatically disables STP
for a bridge group. STP is enabled on the interface when
you enter the bridge n protocol ieee command.
Spanning Tree Protocol in a Wireless Environment