Configuring OSPF load sharing for Huawei devices

1. Configure the interfaces VLAN

[LSW1]vlan batch 10 12 13

[LSW1-GigabitEthernet0/0/2]port link-type trunk  

[LSW1-GigabitEthernet0/0/2]port trunk allow-pass vlan 12

[LSW1-GigabitEthernet0/0/3]port link-type trunk  

[LSW1-GigabitEthernet0/0/3]port trunk allow-pass vlan 13

[LSW1-GigabitEthernet0/0/1]port link-type trunk  

[LSW1-GigabitEthernet0/0/1]port trunk allow-pass vlan 10

[LSW2]vlan batch 12 23

[LSW2-GigabitEthernet0/0/1]port link-type trunk  

[LSW2-GigabitEthernet0/0/1]port trunk allow-pass vlan 12

[LSW2-GigabitEthernet0/0/4]port link-type trunk  

[LSW2-GigabitEthernet0/0/4]port trunk allow-pass vlan 23

[LSW3]vlan batch 13 34

[LSW3-GigabitEthernet0/0/1]port link-type trunk  

[LSW3-GigabitEthernet0/0/1]port trunk allow-pass vlan 13

[LSW3-GigabitEthernet0/0/4]port link-type trunk  

[LSW3-GigabitEthernet0/0/4]port trunk allow-pass vlan 34

[LSW4]vlan batch 23 34

[LSW4-GigabitEthernet0/0/2]port link-type trunk  

[LSW4-GigabitEthernet0/0/2]port trunk allow-pass vlan 23

[LSW4-GigabitEthernet0/0/3]port link-type trunk  

[LSW4-GigabitEthernet0/0/3]port trunk allow-pass vlan 34

[LSW4-GigabitEthernet0/0/1]port link-type trunk  

[LSW4-GigabitEthernet0/0/1]port trunk allow-pass vlan 20

2. Configure the IP Address

[LSW1-Vlanif12]ip add 10.1.12.1 24

[LSW1-Vlanif13]ip add 10.1.13.1 24

[LSW1-Vlanif10]ip add 10.1.10.1 24

[LSW2-Vlanif12]ip add 10.1.12.2 24

[LSW2-Vlanif23]ip add 10.1.23.2 24

[LSW3-Vlanif13]ip add 10.1.13.3 24

[LSW3-Vlanif34]ip add 10.1.34.3 24

[LSW4-Vlanif23]ip add 10.1.23.4 24

[LSW4-Vlanif34]ip add 10.1.34.4 24

[LSW4-Vlanif20]ip add 10.1.20.4 24

[LSW1]int LoopBack 0

[LSW1-LoopBack0]ip add 10.1.1.1 32

[LSW2]int LoopBack 0

[LSW2-LoopBack0]ip add 10.2.2.2 32

[LSW3]int LoopBack 0

[LSW3-LoopBack0]ip add 10.3.3.3 32

[LSW4]int LoopBack 0

[LSW4-LoopBack0]ip add 10.4.4.4 32

3. To configure OSPF Basic function

[LSW1]ospf 1 router-id 10.1.1.1

[LSW1-ospf-1]area 0

[LSW1-ospf-1-area-0.0.0.0]network 10.1.10.0 0.0.0.255

[LSW1-ospf-1-area-0.0.0.0]network 10.1.12.0 0.0.0.255

[LSW1-ospf-1-area-0.0.0.0]network 10.1.13.0 0.0.0.255

[LSW2]ospf 1 router-id 10.2.2.2

[LSW2-ospf-1]area 0

[LSW2-ospf-1-area-0.0.0.0]network 10.1.12.0 0.0.0.255

[LSW2-ospf-1-area-0.0.0.0]network 10.1.23.0 0.0.0.255

[LSW3]ospf 1 router-id 10.3.3.3  

[LSW3-ospf-1]area 0

[LSW3-ospf-1-area-0.0.0.0]network 10.1.13.0 0.0.0.255

[LSW3-ospf-1-area-0.0.0.0]network 10.1.34.0 0.0.0.255

[LSW4]ospf 1 router-id 10.4.4.4  

[LSW4-ospf-1]area 0

[LSW4-ospf-1-area-0.0.0.0]network 10.1.23.0 0.0.0.255

[LSW4-ospf-1-area-0.0.0.0]network 10.1.34.0 0.0.0.255

[LSW4-ospf-1-area-0.0.0.0]network 10.1.20.0 0.0.0.255

      You can see going to 10.1.20.0 Two next hops of network segment 10.1.12.2 and 10.1.13.3 All become effective routes , Form load sharing

4. stay LSW1 Configure the equivalent route priority on

[LSW1-ospf-1]nexthop 10.1.12.2 weight 1

        It can be seen that , When the priority of the equivalent route is configured , Because the next jump is 10.1.12.2 The priority of the （ A weight of 1） Higher than the next jump is 10.1.13.3 The priority of the , therefore OSPF The next jump is preferred to 10.1.12.2 For the only optimal route