Arista DCS-7050S Q-in-Q Configuration

• Topology:

• Arista SW1 Configuration:

//Connected to Cisco SW1

#interface Ethernet 1

#switch access vlan 123

#switchport mode dot1q-tunnel

//Connected to Arista SW2

#interface Ethernet 49

#switchport mode trunk

• Arista SW2 Configuration:

//Connected to Cisco SW2

#interface Ethernet 1

#switch access vlan 123

#switchport mode dot1q-tunnel

//Connected to Arista SW1

#interface Ethernet 49

#switchport mode trunk

• Cisco SW1 Configuration:

//Connected to Arista SW1

#interface GigabitEthernet1/0/25

#switchport trunk encapsulation dot1q

#switchport trunk allowed vlan 1

#switchport mode trunk

//設定IP

#interface Vlan1

#ip address 192.168.12.1 255.255.255.0

• Cisco SW2 Configuration:

//Connected to Arista SW2

#interface GigabitEthernet1/0/25

#switchport trunk encapsulation dot1q

#switchport trunk allowed vlan 1

#switchport mode trunk

//設定IP

#interface Vlan1

#ip address 192.168.12.2 255.255.255.0