Setup Guide

no shutdown
!
interface Vlan 200
no ip address
tagged GigabitEthernet 1/21,31
no shutdown
!
interface Vlan 300
no ip address
tagged GigabitEthernet 1/21,31
no shutdown
Router 2 Running-Conguration
This example uses the following steps:
1 Enable MSTP globally and set the region name and revision map MSTP instances to the VLANs.
2 Assign Layer-2 interfaces to the MSTP topology.
3 Create VLANs mapped to MSTP instances tag interfaces to the VLANs.
(Step 1)
protocol spanning-tree mstp
no disable
name Tahiti
revision 123
MSTI 1 VLAN 100
MSTI 2 VLAN 200,300
!
(Step 2)
interface GigabitEthernet 2/11
no ip address
switchport
no shutdown
!
interface GigabitEthernet 2/31
no ip address
switchport
no shutdown
!
(Step 3)
interface Vlan 100
no ip address
tagged GigabitEthernet 2/11,31
no shutdown
!
interface Vlan 200
no ip address
tagged GigabitEthernet 2/11,31
no shutdown
!
interface Vlan 300
no ip address
tagged GigabitEthernet 2/11,31
no shutdown
Router 3 Running-Conguration
This example uses the following steps:
1 Enable MSTP globally and set the region name and revision map MSTP instances to the VLANs.
2 Assign Layer-2 interfaces to the MSTP topology.
Multiple Spanning Tree Protocol (MSTP)
561