CCNP - MSTP (Multiple Spanning Tree)
Lab 49 Multiple Spanning Tree
Secara default Cisco Catalyst Switches menjalankan PVST + atau Rapid PVST + (Per VLAN Spanning Tree). Ini berarti bahwa setiap VLAN dipetakan ke satu instance spanning tree. Jika Anda memiliki 20 VLAN, itu berarti ada 20 instance spanning tree.

Buatlah :
vlan database
vlan 10 name TONO
vlan 20 name SAMSUL
vlan 30 name UDIN
vlan 40 name JONO
vlan 50 name BAMBANG
vlan 60 name SMK
SW 1
SW1(config-mst)#name IDN
SW1(config-mst)#revision 1
SW1(config-mst)#instance 1 vlan 10,20,30
SW1(config-mst)#instance 2 vlan 40,50,60
SW1(config-mst)#span mst 1 root primary
SW1(config)#span mst 2 root secondary
SW1(config)#interface range e0/0-1
SW1(config-if-range)#switchport trunk encapsulation dot1q
SW1(config-if-range)#switchport mode trunk
SW1(config-if-range)#exit
SW 2
SW2(config)#spanning-tree mode mst
SW2(config)#spanning-tree mst configuration
SW2(config-mst)#name IDN
SW2(config-mst)#revision 1
SW2(config-mst)#instance 1 vlan 10,20,30
SW2(config-mst)#instance 2 vlan 40,50,60
SW2(config-mst)#span mst 1 root secondary
SW2(config)#span mst 2 root primary
SW2(config)#interface range e0/0-1
SW2(config-if-range)#switchport trunk encap dot1q
SW2(config-if-range)#switchport mode trunk
SW2(config-if-range)#exit
SW 2
SW2#show spanning-tree mst conf
SW2#show spanning-tree mst configuration
Name [IDN]
Revision 1 Instances configured 3
Instance Vlans mapped
-------- ------------------------------------------------------------------
---
0 1-9,11-19,21-29,31-39,41-49,51-59,61-4094
1 10,20,30
2 40,50,60
SW 1
SW1#show spanning-tree mst 1
##### MST1 vlans mapped: 10,20,30
Bridge address aabb.cc00.0100 priority 24577 (24576 sysid 1)
Root this switch for MST1
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- -------------------------------
Et0/0 Desg FWD 2000000 ................... 128.1 P2p
Et0/1 Desg FWD 2000000 ................... 128.2 P2p
SW 2
SW2#show spanning-tree mst 2
##### MST2 vlans mapped: 40,50,60
Bridge address aabb.cc00.0200 priority 24578 (24576 sysid 2)
Root this switch for MST2
Interface Role Sts Cost Prio.Nbr Type
---------------- ---- --- --------- -------- -------------------------------
Et0/0 Desg FWD 2000000....................128.1 P2p
Et0/1 Desg FWD 2000000
Berhasil deh... :)
128.2 P2p
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