Mstp Example 2 - Lenovo RackSwitch G8264CS Application Manual

MSTP Example 2
1. Configure port membership and define the STGs for VLAN 1. Enable tagging on
uplink ports that share VLANs. Port 19 and port 20 connect to the Enterprise
Routing switches.
2. Configure MSTP: Spanning Tree mode, region name, and version.
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This configuration shows how to configure MSTP Groups on the switch, as shown
in Figure 14.
Figure 15. Implementing Multiple Spanning Tree Groups
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 Tree priority values are configured so that each routing switch is the
root for a different MSTP instance. All of the uplinks are active, with each uplink
port backing up the other.
RS 8264CS(config)# interface port 19, 20
RS 8264CS(config-if)# switchport mode trunk
RS 8264CS(config-if)# exit
RS 8264CS(config)# spanning-tree mst configuration
RS 8264CS(config-mst)# name MyRegion
RS 8264CS(config-mst)# revision 100
RS 8264CS(config-mst)# exit
RS 8264CS(config)# spanning-tree mode mst(Set mode to Multiple Spanning Trees)
(Define the Region name)
(Define the Revision level)
Chapter 10: Spanning Tree Protocols
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