Nortel Networks WEB OS 212777 - Manual (Page 56)

Web OS 10.0 Application Guide
56 n Chapter 2: VLANs
212777-A, February 2002
Configuring Multiple Spanning Tree Groups
This configuration shows how to configure the three instances of Spanning Tree groups on the
Web switches A, B, C, and D illustrated in
Figure 2-5 on page 53 .
By default Spanning Trees 2-15 are empty, and Spanning Tree Group 1 contains all configured
VLANs until individual VLANs are explicitly assigned to other Spanning Tree groups. You
can have only one VLAN per Spanning Tree group except for Spanning Tree group 1.
1. Configure the following on Web switch A:
Add port 8 to VLAN 2 and define Spanning Tree group 2 for VLAN 2.
VLAN 2 is automatically removed from Spanning Tree Group 1.
2. Configure the following on Web switch B:
Add port 1 to VLAN 2, port 8 to VLAN 3 and define Spanning Tree groups 2 for VLAN 3.
VLAN 3 is automatically removed from Spanning Tree group 1 and by default VLAN 2
remains in Spanning Tree group 1.
N OTE – Each instance of Spanning Tree group is enabled by default.
>> # /cfg/vlan2 (Select VLAN 2 menu)
>> VLAN 2# add 8 (Add port 8)
>> VLAN 2# ../stp (Select STP menu)
>> Enter Spanning Tree group index [1-16]# 2 (Select Spanning Tree Group 2)
>> Spanning Tree Group 2# add 2 (Add VLAN 2)
>> # /cfg/vlan2 (Select VLAN 2 menu)
>> VLAN 2# add 1 (Add port 1)
>> VLAN 2# ../stp (Select STP menu)
>> VLAN 2# ../vlan3 (Select VLAN 3 menu)
>> VLAN 3# add 8 (Add port 8)
>> VLAN 3# ../stp (Select STP menu)
>> Enter Spanning Tree group index [1-16]# 2 (Select group 2)
>> Spanning Tree Group 2# add 2 (Add VLAN 3)