OSPF配置实验之LSA3
1、LSA3 网络汇总LSA（Network summary LSA）解析LSA类型通告者传播范围通告内容Link IDADV Router 备注
LSA1所有路由器同一Area路由、拓扑RIDRID
LSA2DR同一Area掩码、拓扑DR IPDR RID仅存MA网络
LSA3最后的ABR整个OSPF域路由、掩码、Metric路由ABR RID路由标记为IA
LSA1 路由器LSA（Router LSA）
LSA2网络LSA（Network LSA）
LSA3 网络汇总LSA（Network summary LSA）
2、实验拓扑
3、实验配置
R1配置
interface Loopback0
ip address 1.1.1.1 255.255.255.0
interface Serial0/0
ip address 12.1.1.1 255.255.255.0
interface FastEthernet1/0
ip address 120.1.1.1 255.255.255.0
router ospf 110
router-id 8.8.8.1
network 1.1.1.0 0.0.0.255 area 0
network 12.1.1.0 0.0.0.255 area 0
network 120.1.1.0 0.0.0.255 area 0
R2配置
interface Loopback0
ip address 2.2.2.2 255.255.255.0
interface Serial0/0
ip address 12.1.1.2 255.255.255.0
interface Serial0/1
ip address 23.1.1.2 255.255.255.0
face FastEthernet1/0
ip address 120.1.1.2 255.255.255.0
router ospf 110
router-id 8.8.8.2
network 2.2.2.0 0.0.0.255 area 0
network 12.1.1.0 0.0.0.255 area 0
network 23.1.1.0 0.0.0.255 area 1
network 120.1.1.0 0.0.0.255 area 0
R3配置
interface Loopback0
ip address 3.3.3.3 255.255.255.0
interface Serial0/1
ip address 23.1.1.3 255.255.255.0
router ospf 110
router-id 8.8.8.3
network 3.3.3.0 0.0.0.255 area 1
network 23.1.1.0 0.0.0.255 area 1
4、结论验证
Link ID是路由、ADV Router是ABR Router ID。
通告内容为路由、掩码、Metric
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