Table 2-2 Multiple Spanning Tree Groups Per Vlan - Nortel Web OS Switch Software Application Manual

Web OS 10.0 Application Guide

Table 2-2 Multiple Spanning Tree Groups per VLAN

Web Switch A
Web Switch B
Web Switch C
Web Switch D
Switch-Centric Spanning Tree Protocol
In Figure 2-5 on page
tively. Web switch A identifies VLAN 2 in Spanning Tree group 2 and Web switch B identifies
VLAN 2 in Spanning Tree group 1. Spanning Tree group is switch-centric—it is used to iden-
tify the VLANs participating in the Spanning Tree groups. The Spanning Tree group ID is not
transmitted in the BPDU. Each Spanning Tree decision is based on the configuration of that
switch.
n
54 Chapter 2: VLANs
VLAN 1
Spanning Tree Group 1
Ports 1 and 2
Spanning Tree Group 1
Ports 1 and 2
Spanning Tree Group 1
Ports 1 and 8
53, VLAN 2 is shared by Web switch A and B on ports 8 and 1 respec-
VLAN 2
Spanning Tree Group 2
Port 8
Spanning Tree Group 1
Port 1
VLAN 3
Spanning Tree Group 2
Port 8
Spanning Tree Group 2
Port 8
212777-A, February 2002