NSSA area where OSPF is configured for Huawei equipment

1. Configure all interfaces VLAN
   [LSW1]vlan batch 13 14
   [LSW1-GigabitEthernet0/0/3]port link-type trunk
   [LSW1-GigabitEthernet0/0/3]port trunk allow-pass vlan 13
   [LSW1-GigabitEthernet0/0/4]port link-type trunk
   [LSW1-GigabitEthernet0/0/4]port trunk allow-pass vlan 14
   [LSW2]vlan batch 23 24
   [LSW2-GigabitEthernet0/0/3]port link-type trunk
   [LSW2-GigabitEthernet0/0/3]port trunk allow-pass vlan 23
   [LSW2-GigabitEthernet0/0/4]port link-type trunk
   [LSW2-GigabitEthernet0/0/4]port trunk allow-pass vlan 24
   [LSW3]vlan batch 13 23
   [LSW3-GigabitEthernet0/0/1]port link-type trunk
   [LSW3-GigabitEthernet0/0/1]port trunk allow-pass vlan 13
   [LSW3-GigabitEthernet0/0/2]port link-type trunk
   [LSW3-GigabitEthernet0/0/2]port trunk allow-pass vlan 23
   [LSW4]vlan batch 14 24
   [LSW4-GigabitEthernet0/0/1]port link-type trunk
   [LSW4-GigabitEthernet0/0/1]port trunk allow-pass vlan 14
   [LSW4-GigabitEthernet0/0/2]port link-type trunk
   [LSW4-GigabitEthernet0/0/2]port trunk allow-pass vlan 24

2. Configure the IP Address
   [LSW1-Vlanif13]ip add 10.1.13.1 24
   [LSW1-Vlanif14]ip add 10.1.14.1 24
   [LSW2-Vlanif23]ip add 10.1.23.2 24
   [LSW2-Vlanif24]ip add 10.1.24.2 24
   [LSW3-Vlanif13]ip add 10.1.13.3 24
   [LSW3-Vlanif23]ip add 10.1.23.3 24
   [LSW4-Vlanif14]ip add 10.1.14.4 24
   [LSW4-Vlanif24]ip add 10.1.24.4 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 10.1.13.0 0.0.0.255
   [LSW1-ospf-1]area 10
   [LSW1-ospf-1-area-0.0.0.10]network 10.1.14.0 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 10.1.23.0 0.0.0.255
   [LSW2-ospf-1]area 10
   [LSW2-ospf-1-area-0.0.0.10]network 10.1.24.0 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 10.1.23.0 0.0.0.255
   [LSW4]ospf 1 router-id 10.4.4.4
   [LSW4-ospf-1]area 10
   [LSW4-ospf-1-area-0.0.0.10]network 10.1.14.0 0.0.0.255
   [LSW4-ospf-1-area-0.0.0.10]network 10.1.24.0 0.0.0.255

4. To configure Area10 The area is NSSA Area
   [LSW1]ospf 1
   [LSW1-ospf-1]area 10
   [LSW2]ospf 1
   [LSW2-ospf-1]area 10
   [LSW2-ospf-1-area-0.0.0.10]nssa
   [LSW4]ospf 1
   [LSW4-ospf-1]area 10
   [LSW4-ospf-1-area-0.0.0.10]nssa

5. To configure LSW4 Introducing static routing
   [LSW4]ip route-static 10.1.0.0 16 NULL 0
   [LSW4]ospf 1
   [LSW4-ospf-1]import-route static
   

   It can be seen that NSSA Area introduced AS The external route is through LSW1 Released to other regions , namely LSW1 take Type7 LSA Transformed into Type5 LSA

6. To configure LSW2 Convert to router
   [LSW2]ospf 1
   [LSW2-ospf-1]area 10
   [LSW2-ospf-1-area-0.0.0.10]nssa translator-always

7. Verify configuration
   

   It can be seen that NSSA Area introduced AS The external route is through LSW2 Released to other regions , namely LSW2 It becomes a conversion router