Spanning Tree Protocol (STP) adalah protokol jaringan yang menjamin topologi jaringan bebas melakukan perulangan untuk penghubung Ethernet LAN.
Cara Konfigurasi PVST+
- Buka CIsco Packet Tracer
- Buat skema jaringan seperti dibawah ini
3. Buatlah VLAN 10, 20, 30, 40, 50, 60, 70, 80, dan 99 pada semua switch.
S1>ena S1#conf t
S1(config)#vlan 10
S1(config-vlan)#vlan 20
S1(config-vlan)#vlan 30
S1(config-vlan)#vlan 40
S1(config-vlan)#vlan 50
S1(config-vlan)#vlan 60
S1(config-vlan)#vlan 70
S1(config-vlan)#vlan 80
S1(config-vlan)#vlan 99
S1(config-vlan)#exit
S2>ena
S2#conf t
S2(config)#vlan 10
S2(config-vlan)#vlan 20
S2(config-vlan)#vlan 30
S2(config-vlan)#vlan 40
S2(config-vlan)#vlan 50
S2(config-vlan)#vlan 60
S2(config-vlan)#vlan 70
S2(config-vlan)#vlan 80
S2(config-vlan)#vlan 99
S2(config-vlan)#exit
S3>ena
S3#conf t
S3(config)#vlan 10
S3(config-vlan)#vlan 20
S3(config-vlan)#vlan 30
S3(config-vlan)#vlan 40
S3(config-vlan)#vlan 50
S3(config-vlan)#vlan 60
S3(config-vlan)#vlan 70
S3(config-vlan)#vlan 80
S3(config-vlan)#vlan 99
S3(config-vlan)#exit
4. Mengaktifkan mode access pada semua switch, dan mendaftarkan access vlan-vlan yang telah ditentukan
S1(config)#interface f0/6
S1(config-if)#switchport mode access
S1(config-if)#switchport access vlan 30
S1(config-if)#no shutdown
S1(config-if)#exit
S2(config)#interface f0/18
S2(config-if)#switchport mode access
S2(config-if)#switchport access vlan 20
S2(config-if)#no shutdown
S2(config-if)#exit
S3(config)#interface f0/11
S3(config-if)#switchport mode access
S3(config-if)#switchport access vlan 10
S3(config-if)#no shutdown
S3(config-if)#exit
5. Mengaktifkan mode trunk native VLAN 99 pada semua switch
S1(config)#interface range f0/1-4
S1(config-if-range)#switchport mode trunk
S1(config-if-range)#switchport trunk native vlan 99
S1(config-if-range)#exit
S2(config)#interface range f0/1-4
S2(config-if-range)#switchport mode trunk
S2(config-if-range)#switchport trunk native vlan 99
S2(config-if-range)#exit
S3(config)#interface range f0/1-4
S3(config-if-range)#switchport mode trunk
S3(config-if-range)#switchport trunk native vlan 99
S3(config-if-range)#exit
6. Berikanlah IP Address terhadap Vlan 99 pada semua switch
S1(config)#interface vlan 99
S1(config-if)#ip address 172.31.99.1 255.255.255.0
S1(config-if)#exit
S2(config)#interface vlan 99
S2(config-if)#ip address 172.31.99.2 255.255.255.0
S2(config-if)#exit
S3(config)#interface vlan 99
S3(config-if)#ip address 172.31.99.3 255.255.255.0
S3(config-if)#exit
7. Konfigurasi STP dan PVST+ Load Balancing
S1(config)#spanning-tree mode
pvst
S1(config)#spanning-tree vlan 1,10,30,50,70 root primary
S2(config)#spanning-tree mode
pvst
S2(config)#spanning-tree vlan 1,10,20,30,40,50,60,70,80,99 root secondary
S3(config)#spanning-tree mode
pvst
S3(config)#spanning-tree vlan 20,40,60,80,99 root primary
8. Konfigurasi Portfast dan BPDU Guard
S1(config)#interface f0/6
S1(config-if)#spanning-tree portfast
S1(config-if)#spanning-tree bpduguard enable
S2(config)#interface f0/18
S2(config-if)#spanning-tree portfast
S2(config-if)#spanning-tree bpduguard enable
S3(config)#interface
f0/11
S3(config-if)#spanning-tree portfast
S3(config-if)#spanning-tree bpduguard enable
9. Berikanlah IP address apa masing- masing PC seperti yang telah ditentukan
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