Mstp Configuration Examples - IBM RackSwitch G8000 Application Manual

MSTP Configuration Examples

128
RackSwitch G8000: Application Guide
• Each bridge in the region must have the same name, version number, and VLAN
mapping.
Example 1
This section provides steps to configure MSTP on the G8000.
1. Configure port and VLAN membership on the switch.
2. Set the mode to Multiple Spanning Tree, and configure MSTP region
parameters.
RS G8000(config)# spanning-tree mode mst
RS G8000(config)# spanning-tree mstp name <name>
3. Assign VLANs to Spanning Tree Groups.
RS G8000(config)# vlan 2
RS G8000(config-vlan)# stg 2
RS G8000(config-vlan)# exit
Example 2
This configuration shows how to configure MSTP Groups on the switch, as shown in
Figure 13.
Figure 14. Implementing Multiple Spanning Tree Groups
Enterprise
Routing Switch
MSTP Group 1
Root
Passing VLAN 1
Blocking VLAN 2
Server 1
VLAN 1
This example shows how multiple Spanning Trees can provide redundancy without
wasting any uplink ports. In this example, the server ports are split between two
separate VLANs. Both VLANs belong to two different MSTP groups. The Spanning
Blocking VLAN 1
Passing VLAN 2
Server 2 Server 3 Server 4
VLAN 1 VLAN 2 VLAN 2
Enterprise
Routing Switch
MSTP Group 2
Root