Dell Force10 MXL Blade - Page 349

Multiple Spanning Tree Protocol (MSTP) | 347
Figure 19-10. MSTP with Three VLANs Mapped to Two Spanning Tree Instances
Figure 19-11. Router 1 Running-configuration
R1
R2
R3
1/2
3/1
3/2
1/3
2/1
2/3
root
Forwarding
Blocking
protocol spanning-tree mstp
no disable
name Tahiti
revision 123
MSTI 1 VLAN 100
MSTI 2 VLAN 200,300
!
interface TenGigabitEthernet 1/21
no ip address
switchport
no shutdown
!
interface TenGigabitEthernet 1/31
no ip address
switchport
no shutdown
!
interface Vlan 100
no ip address
tagged TenGigabitEthernet 1/21,31
no shutdown
!
interface Vlan 200
no ip address
tagged TenGigabitEthernet 1/21,31
no shutdown
!
interface Vlan 300
no ip address
tagged TenGigabitEthernet 1/21,31
no shutdown
Enable MSTP globally
Set Region Name and Revision
Map MSTP Instances to VLANs
Assign Layer-2 interfaces
to MSTP topology
Create VLANs mapped to MSTP Instances
Tag interfaces to VLANs