Hi,
would this work? and Is this a good design or would a single instance be better?
Root bridge is A Root bridge is B
|C E | | A----B A---B--G | | | F D
MST instance 1 MST instance 2
Configuration:
A switch Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 1 vlan 1-3,43-45,94-98,253 Instance 2 vlan 4-8,10-15,94-98 Spanning-tree mst 1 root primary Spanning-tree mst 2 root secondary Exit
B switch Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 2 vlan 4-8,10-15,94-98 Instance 1 vlan 1-3,43-45,94-98,253 Spanning-tree mst 2 root primary Spanning-tree mst 1 root secondary
C switch Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 1 vlan 1-3,43-45,94-98,253 Instance 2 vlan 4-8,10-15,94-98
D switch Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 1 vlan 1-3,43-45,94-98,253 Instance 2 vlan 4-8,10-15,94-98
E Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 2 vlan 4-8,10-15,94-98 Instance 1 vlan 1-3,43-45,94-98,253
F Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 2 vlan 4-8,10-15,94-98 Instance 1 vlan 1-3,43-45,94-98,253
G Switch(Config)# spanning-tree mode mst Spanning-tree mst configuration Name manila2 Revision 0 Instance 2 vlan 4-8,10-15,94-98 Instance 1 vlan 1-3,43-45,94-98,253