เตรียม IP Address

Management IP
Switch 1 Management IP : 192.168.1.11
Switch 2 Management IP : 192.168.1.12
MLAG IP : 192.168.1.10 (Subnet เดียวกับ Switch 1,2 Management IP)

IPL IP ไม่ตรงกับ Subnet ที่มีใช้งานอยู่แล้วในบริษัท
Switch 1 IPL IP : 10.1.4.10
Switch 2 IPL IP : 10.1.4.11

Config Switch ทั้งคู่

# configure terminal
# hostname SwitchX
# interface mgmt0
# ip address 192.168.1.11 255.255.255.0
# exit
# ip route vrf mgmt 0.0.0.0/0 192.168.1.254
# ip name-server vrf mgmt 192.168.1.1
# ip domain-list domain.local

# en
# configure terminal
# lacp
# no spanning-tree
# ip routing
# protocol mlag
# dcb priority-flow-control enable force

Config IPL ทำที่ Switch ทั้งคู่ ใช้ Port ที่ Link ระหว่าง Switch หากัน

# interface port-channel 1
interface port-channel 1 ) # exit

# interface ethernet 1/35 channel-group 1 mode active
# interface ethernet 1/36 channel-group 1 mode active

# vlan 4000
vlan 4000) # exit

# interface vlan 4000
interface vlan 4000 ) # exit

# interface port-channel 1 ipl 1
# interface port-channel 1 dcb priority-flow-control mode on force

Config IPL Switch 1

# interface vlan 4000
interface vlan 4000 ) # ip address 10.4.1.10 /24
interface vlan 4000 ) # ipl 1 peer-address 10.4.1.11
interface vlan 4000 ) # exit

Config IPL Switch 2

# interface vlan 4000 on switch 2
interface vlan 4000 ) # ip address 10.4.1.11 /24
interface vlan 4000 ) # ipl 1 peer-address 10.4.1.10
interface vlan 4000 ) # exit

Config MLAG ทำที่ Switch ทั้งคู่

# mlag-vip my-mlag-vip-domain ip 192.168.1.10 /24 force
# mlag system-mac 00:00:5E:00:01:5D
# no mlag shutdown

ตัวอย่างสร้าง 3 mlag-port-chanel ทำที่ Switch ทั้งคู่

# interface mlag-port-channel 1-3
# interface mlag-port-channel 1-3) # exit

# interface ethernet 1/1 mlag-channel-group 1 mode active
# interface ethernet 1/2 mlag-channel-group 1 mode active

# interface ethernet 1/3 mlag-channel-group 2 mode active
# interface ethernet 1/4 mlag-channel-group 2 mode active

# interface ethernet 1/5 mlag-channel-group 3 mode active
# interface ethernet 1/6 mlag-channel-group 3 mode active

# interface mlag-port-channel 1-3 no shutdown