1. Buka Cisco Packet Tracer

2. Buat skema jaringan seperti di gambar

3. Buatlah VLAN 10, 20, 30, 40, 50, 60, 70, 80 dan 99 pada semua switch.

Switch1>en

Switch1#conf t

Switch1(config)#vlan 10

Switch1(config-vlan)#vlan 20

Switch1(config-vlan)#vlan 30

Switch1(config-vlan)#vlan 40

Switch1(config-vlan)#vlan 50

Switch1(config-vlan)#vlan 60

Switch1(config-vlan)#vlan 70

Switch1(config-vlan)#vlan 80

Switch1(config-vlan)#vlan 99

Switch1(config-vlan)#exit

Switch2>en

Switch2#conf t

Switch2(config)#vlan 10

Switch2(config-vlan)#vlan 20

Switch2(config-vlan)#vlan 30

Switch2(config-vlan)#vlan 40

Switch2(config-vlan)#vlan 50

Switch2(config-vlan)#vlan 60

Switch2(config-vlan)#vlan 70

Switch2(config-vlan)#vlan 80

Switch2(config-vlan)#vlan 99

Switch2(config-vlan)#exit

Switch3>en

Switch3#conf t

Switch3(config)#vlan 10

Switch3(config-vlan)#vlan 20

Switch3(config-vlan)#vlan 30

Switch3(config-vlan)#vlan 40

Switch3(config-vlan)#vlan 50

Switch3(config-vlan)#vlan 60

Switch3(config-vlan)#vlan 70

Switch3(config-vlan)#vlan 80

Switch3(config-vlan)#vlan 99

Switch3(config-vlan)#exit

4. Mengaktifkan mode access pada semua switch dan mendaftarkan vlan - vlan yang telah ditentukan

Switch1(config)#interface f0/6

Switch1(config-if)#switchport mode access 

Switch1(config-if)#switchport access vlan 30

Switch1(config-if)#no shutdown

Switch1(config-if)#exit

Switch2(config)#interface f0/18

Switch2(config-if)#switchport mode access 

Switch2(config-if)#switchport access vlan 20

Switch2(config-if)#no shutdown

Switch2(config-if)#exit

Switch3(config)#interface f0/11

Switch3(config-if)#switchport mode access 

Switch3(config-if)#switchport access vlan 10

Switch3(config-if)#no shutdown

Switch3(config-if)#exit

5. Mengaktifkan mode trunk native VLAN 99 pada semua switch

Switch1(config)#interface range f0/1-4

Switch1(config-if-range)#switchport mode trunk 

Switch1(config-if-range)#switchport trunk native vlan 99

Switch1(config-if-range)#exit

Switch2(config)#interface range f0/1-4

Switch2(config-if-range)#switchport mode trunk 

Switch2(config-if-range)#switchport trunk native vlan 99

Switch2(config-if-range)#exit

Switch3(config)#interface range f0/1-4

Switch3(config-if-range)#switchport mode trunk 

Switch3(config-if-range)#switchport trunk native vlan 99

Switch3(config-if-range)#exit

6. Berikanlah ip address terhadap VLAN 99 pada semua switch

Switch1(config)#interface vlan 99

Switch1(config-if)#ip address 172.31.99.1 255.255.255.0

Switch1(config-if)#exit

Switch2(config)#interface vlan 99

Switch2(config-if)#ip address 172.31.99.2 255.255.255.0

Switch2(config-if)#exit

Switch3(config)#interface vlan 99

Switch3(config-if)#ip address 172.31.99.3 255.255.255.0

Switch3(config-if)#exit

7. Konfigurasi STP dan PVST+ Load Balancing

Switch1(config)#spanning-tree mode pvst

Switch1(config)#spanning-tree vlan 1,10,30,50,70 root primary

Switch2(config)#spanning-tree mode pvst

Switch2(config)#spanning-tree vlan 1,10,20,30,40,50,60,70,80,99 root secondary

Switch3(config)#spanning-tree mode pvst

Switch3(config)#spanning-tree vlan 20,40,60,80,99 root primary

8. Konfigurasi Portfast dan BPDU Guard

Switch1(config)#interface f0/6

Switch1(config-if)#spanning-tree portfast 

Switch1(config-if)#spanning-tree bpduguard enable

Switch2(config)#interface f0/18

Switch2(config-if)#spanning-tree portfast 

Switch2(config-if)#spanning-tree bpduguard enable

Switch3(config)#interface f0/11

Switch3(config-if)#spanning-tree portfast 

Switch3(config-if)#spanning-tree bpduguard enable

9. Konfigurasi ip address pada semua pc

 klik pc 1

- buka tampilan desktop

- klik pada ip configuration

- masukan ip address, subnet mask, dan default gateway nya sesuai pada tabel diatas

Terimakasih,,