Alcatel-Lucent 6850-48 Guida Di Rete

Spanning Tree Bridge Parameter Defaults

Configuring Spanning Tree Parameters

page 13-4

OmniSwitch AOS Release 6 Network Configuration Guide

Spanning Tree operating mode

1x1 (a separate Spanning Tree 
instance for each VLAN)

PVST+ status

Disabled

Spanning Tree protocol

RSTP (802.1w) 

BPDU switching status

Disabled

Priority value for the Spanning 
Tree instance

32768

Hello time interval between each 
BPDU transmission

2 seconds

Maximum aging time allowed 
for Spanning Tree information 
learned from the network

20 seconds

Spanning Tree port state transi-
tion time

15 seconds

Automatic VLAN Containment

Disabled

Spanning Tree port administrative state

Enabled

Spanning Tree port priority value

7

Spanning Tree port path cost

0 (cost is based on port speed)

Path cost mode

Auto (16-bit in 1x1 mode and 
STP or RSTP flat mode, 32-bit 
in MSTP flat mode)

Port state management mode

Dynamic (Spanning Tree Algo-
rithm determines port state)

Type of port connection

auto point to point 

Type of BPDU to be used on a port when 
1X1 PVST+ mode is enabled

auto (IEEE BPDUs are used 
until a PVST+ BPDU is 
detected)