Multi-Area Ospf Configuration Example - Zte ZXR10 5900E Series User Manual

ZXR10 5900E Series User Manual (IPv4 Volume)
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Multi-Area OSPF Configuration
Example
When a network is big, it should be divided into multiple OSPF
areas. This is shown in
F 7 MULTI-AREA OSPF CONFIGURATION
IGURE
1. Area 0.0.0.1 is a NSSA; R1 is an ABR working between the
NSSA 0.0.0.1 and the backbone area. R1 advertises a default
route in the local area.
R1 configuration:
ZXR10_R1(config)#interface vlan 1
ZXR10_R1(config-if-vlan1)#ip address 10.0.1.1 255.255.255.252
ZXR10_R1(config-if-vlan1)#exit
ZXR10_R1(config)#interface vlan2
ZXR10_R1(config-if-vlan2)#ip address 10.0.0.1 255.255.255.0
ZXR10_R1(config-if-vlan2)#exit
ZXR10_R1(config)#router ospf 1
ZXR10_R1(config-router)#network 10.0.0.0 0.0.0.255 area 0.0.0.0
ZXR10_R1(config-router)#network 10.0.1.0 0.0.0.3 area 0.0.0.1
ZXR10_R1(config-router)#area 0.0.0.1 nssa
2. Area 0.0.0.2 is a stub area; R2 is an ABR working between the
Area 0.0.0.2 and the backbone area. In the stub area, the ABR
advertises a default route automatically.
R2 configuration:
ZXR10_R2(config)#interface vlan1
ZXR10_R2(config-if-vlan1)#ip address 10.0.2.1 255.255.255.252
ZXR10_R2(config-if-vlan1)#exit
ZXR10_R2(config)#interface vlan2
ZXR10_R2(config-if-vlan2)#ip address 10.0.0.2 255.255.255.0
ZXR10_R2(config-if-vlan2)#exit
ZXR10_R2(config)#router ospf 1
ZXR10_R2(config-router)#network 10.0.0.0 0.0.0.255 area 0.0.0.0
ZXR10_R2(config-router)#network 10.0.2.0 0.0.0.3 area 0.0.0.2
ZXR10_R2(config-router)#area 0.0.0.2 stub
3. R3 is a router in the backbone area 0 and connects to other
ASs through a BGP. R3 Configuration can be done as egress
Figure 7 as an example of multi-area OSPF.
default-information-originate