Using 802.1S Multiple Spanning Tree; Mst Specifications; Spanning Tree Bridge Parameter Defaults - Alcatel OmniSwitch 6600 Family Network Configuration Manual

MST Specifications

MST Specifications
IEEE Standards supported
Spanning Tree Operating Modes supported Flat mode - one spanning tree instance per switch
Spanning Tree Protocols supported
Spanning Tree port eligibility
Maximum 1x1 Spanning Tree instances
per switch
Maximum flat mode 802.1s Multiple
Spanning Tree Instances (MSTI) per
switch
CLI Command Prefix Recognition

Spanning Tree Bridge Parameter Defaults

Parameter Description
Spanning Tree operating mode
Spanning Tree protocol
BPDU switching status.
Priority value for the Spanning Tree
instance.
Hello time interval between each BPDU
transmission.
Maximum aging time allowed for Span-
ning Tree information learned from the
network.
Spanning Tree port state transition time.
page 6-2
802.1D–Media Access Control (MAC) Bridges
802.1w–Rapid Reconfiguration (802.1D Amendment 2)
802.1Q–Virtual Bridged Local Area Networks
802.1s–Multiple Spanning Trees (802.1Q Amendment 3)
1x1 mode - one spanning tree instance per VLAN
802.1D Standard Spanning Tree Algorithm and Protocol
(STP)
802.1w Rapid Spanning Tree Algorithm and Protocol (RSTP)
802.1s Multiple Spanning Tree Algorithm and Protocol
(MSTP)
Fixed ports (non-mobile)
802.1Q tagged ports
Link aggregate of ports
253
16 MSTI, in addition to the Common and Internal Spanning
Tree instance (also referred to as MSTI 0).
All Spanning Tree commands support prefix recognition. See
the "Using the CLI" chapter in the OmniSwitch 7700/7800/
8800 Switch Management Guide for more information.
Command
bridge mode
bridge protocol
bridge bpdu-switching
bridge priority
bridge hello time
bridge max age
bridge forward delay
OmniSwitch 6600 Family Network Configuration Guide

Using 802.1s Multiple Spanning Tree

Default
1x1 (a separate Spanning Tree
instance for each VLAN)
STP (802.1D)
Disabled
32768
2 seconds
20 seconds
15 seconds
April 2006