Enabling MSTP on a Device
You must enable MSTP on the device.
MSTP scope must be enabled on the switch as described in Configuring MSTP Mode and Scope before MSTP can be enabled.
To enable MSTP on your switch, use the following at the Global Configuration level.
device(config)# mstp start
Examples of an MSTP configuration
In the following figure, four RUCKUS device routers are configured in two regions. There are four VLANs in four instances in Region 2. Region 1 is in the CIST.
RTR1 on MSTP Configuration
device(config-vlan-4093)# tagged ethernet 10/1/1 to 10/1/2 device(config-vlan-4093)# exit device(config)# mstp scope all device(config)# mstp name Reg1 device(config)# mstp revision 1 device(config)# mstp admin-pt2pt-mac ethernet 10/1/1 to 10/1/2 device(config)# mstp start device(config)# hostname RTR1
Core 1 on MSTP Configuration
device(config)# trunk ethernet 1/2/9 to 1/2/12 ethernet 1/2/13 to 1/2/14 device(config-vlan-1)# name DEFAULT-VLAN by port device(config-vlan-1)# exit device(config)# vlan 20 by port device(config-vlan-20)# tagged ethernet 1/2/9 to 1/2/14 ethernet 1/2/16 device(config-vlan-20)# exit device(config)# vlan 21 by port device(config-vlan-21)# tagged ethernet 1/2/9 to 1/2/14 ethernet 1/2/16 device(config-vlan-21)# exit device(config)# vlan 22 by port device(config-vlan-22)# tagged ethernet 1/2/9 to 1/2/14 ethernet 1/2/16 device(config-vlan-22)# exit device(config)# vlan 23 by port device(config)# mstp scope all device(config)# mstp name HR device(config)# mstp revision 2 device(config)# mstp instance 20 vlan 20 device(config)# mstp instance 21 vlan 21 device(config)# mstp instance 22 vlan 22 device(config)# mstp instance 0 priority 8192 device(config)# mstp admin-pt2pt-mac ethernet 1/2/9 to 1/2/14 device(config)# mstp admin-pt2pt-mac ethernet 1/2/16 device(config)# mstp disable ethernet 2/240. device(config)# mstp start device(config)# hostname CORE1
Core2 on MSTP Configuration
device(config)# trunk ethernet 1/3/5 to 1/3/6 ethernet 1/3/17 to 1/3/20 device(config)# vlan 1 name DEFAULT-VLAN by port device(config-vlan-1)# exit device(config)# vlan 20 by port device(config-vlan-20)# tagged ethernet 1/3/5 to 1/3/6 ethernet 1/3/17 to 1/3/20 device(config-vlan-20)# exit device(config)# vlan 21 by port device(config-vlan-21)# tagged ethernet 1/3/5 to 1/3/6 ethernet 1/3/17 to 1/3/20 device(config-vlan-21)# exit device(config)# vlan 22 by port device(config-vlan-22)# tagged ethernet 1/3/5 to 1/3/6 ethernet 1/3/17 to 1/3/20 device(config-vlan-22)# exit device(config)# mstp scope all device(config)# mstp name HR device(config)# mstp revision 2 device(config)# mstp instance 20 vlan 20 device(config)# mstp instance 21 vlan 21 device(config)# mstp instance 22 vlan 22 device(config)# mstp admin-pt2pt-mac ethernet 1/3/17 to 1/3/20 ethernet 1/3/5 to 1/3/6 device(config)# mstp admin-pt2pt-mac ethernet 1/3/10 device(config)# mstp disable ethernet 1/3/7 ethernet 1/3/24 device(config)# mstp start device(config)# hostname CORE2
LAN 4 on MSTP Configuration
device(config)# trunk ethernet 1/3/5 to 1/3/6 ethernet 3/1/1 to 3/1/2 device(config)# vlan 1 name DEFAULT-VLAN by port device(config-vlan-1)# exit device(config)# vlan 20 by port device(config-vlan-20)# tagged ethernet 3/1/1 to 3/1/2 ethernet 3/1/5 to 3/1/6 device(config)# exit device(config)# vlan 21 by port device(config-vlan-21)# tagged ethernet 3/1/1 to 3/1/2 ethernet 3/1/5 to 3/1/6 device(config-vlan-21)# exit device(config)# vlan 22 by port device(config-vlan-22)# tagged ethernet 3/1/1 to 3/1/2 ethernet 3/1/5 to 3/1/6 device(config)# mstp scope all device(config)# mstp config name HR device(config)# mstp revision 2 device(config)# mstp instance 20 vlan 20 device(config)# mstp instance 21 vlan 21 device(config)# mstp instance 22 vlan 22 device(config)# mstp admin-pt2pt-mac ethernet 3/1/5 to 3/1/6 ethernet 3/1/1 to 3/1/2 device(config)# mstp start device(config)# hostname LAN4