Arista DCS-7050S MLAG Configuration

• Topology:

• Arista SW1 Configuration:

//建立Peer Link

#vlan 4094

#no spanning-tree vlan 4094

#trunk group mlagpeer

#interface Ethernet 49 – 50

#channel-group 10 mode active

#interface port-channel 10

#switchport mode trunk

#switchport trunk group mlagpeer

//設定SVI提供peer雙方溝通用

#interface vlan 4094

#ip address 10.0.0.1/24

#no autostate

//設定MLAG

#mlag configuration

#local-interface vlan 4094

#peer-address 10.0.0.2

#peer-link port-channel 10

#domain-id mlagDomain

//設定MLAG interface

#interface Ethernet 45

#channel-group 1 mode active

#interface port-channel 1

#switchport mode trunk

#mlag 1

• Arista SW2 Configuration:

//建立Peer Link

#vlan 4094

#no spanning-tree vlan 4094

#trunk group mlagpeer

#interface Ethernet 49 – 50

#channel-group 10 mode active

#interface port-channel 10

#switchport mode trunk

#switchport trunk group mlagpeer

//設定SVI提供peer雙方溝通用

#interface vlan 4094

#ip address 10.0.0.2/24

#no autostate

//設定MLAG

#mlag configuration

#local-interface vlan 4094

#peer-address 10.0.0.1

#peer-link port-channel 10

#domain-id mlagDomain

//設定MLAG interface

#interface Ethernet 45

#channel-group 1 mode active

#interface port-channel 1

#switchport mode trunk

#mlag 1

• Cisco 3750 Configuration:

//建立port-channel

#interface range GigabitEthernet 1/0/25 - 26

#channel-protocol lacp

#channel-group 1 mode active