1、Network LSAs解析
| LSA类型 | 通告者 | 传播范围 | 通告内容 | Link ID | ADV Router | 注 释 |
| Router lsa | 所有路由器 | 同一Area | 路由、拓扑 | RouterID | RouterID | |
| Network lsa | DR | 同一Area | 掩码、拓扑 | DR IP | DR RID | 仅存MA网络 |
| Summary lsa | ABR | 整个OSPF Area | 路由、掩码、Metric | 路由 | ABR RID | 路由标记为IA |
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
