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Peng Hailin 2016-09-20 16:41:05 +08:00
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d36-EIGRP.md
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@ -2172,3 +2172,48 @@ R1(config)#interface Serial0/0
R1(config-if)#ip summary-address eigrp 150 10.0.0.0 255.252.0.0
R1(config-if)#exit
```
在此配置下，该汇总条目`10.0.0.0/14`就将被安装到路由器R1的EIGRP拓扑表与IP路由表中。该EIGRP拓扑表条目如下所示：
```
R1#show ip eigrp topology
IP-EIGRP Topology Table for AS(150)/ID(10.3.3.1)
Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,
r - reply Status, s - sia Status
P 10.0.0.0/14, 1 successors, FD is 128256
via Summary (128256/0), Null0
P 10.3.3.0/24, 1 successors, FD is 128256
via Connected, Loopback3
P 10.2.2.0/24, 1 successors, FD is 128256
via Connected, Loopback2
P 10.0.0.0/24, 1 successors, FD is 128256
via Connected, Loopback0
P 10.1.1.0/24, 1 successors, FD is 128256
via Connected, Loopback1
...
[Truncated Output]
```
而该路由表条目，也同样反应出来此汇总路由的下一跳接口为`Null0`, 如下所示：
```
R1#show ip route
Codes: C - connected, S - static, R - RIP, M - mobile, B - BGP
D - EIGRP, EX - EIGRP external, O - OSPF, IA - OSPF inter area
N1 - OSPF NSSA external type 1, N2 - OSPF NSSA external type 2
E1 - OSPF external type 1, E2 - OSPF external type 2
i - IS-IS, su - IS-IS summary, L1 - IS-IS level-1, L2 - IS-IS level-2
ia - IS-IS inter area, * - candidate default, U - per-user static route
o - ODR, P - periodic downloaded static route
Gateway of last resort is not set
10.0.0.0/8 is variably subnetted, 5 subnets, 2 masks
C 10.3.3.0/24 is directly connected, Loopback3
C 10.2.2.0/24 is directly connected, Loopback2
C 10.1.1.0/24 is directly connected, Loopback1
C 10.0.0.0/24 is directly connected, Loopback0
D* 10.0.0.0/14 is a summary, 00:02:37, Null0
150.1.0.0/24 is subnetted, 1 subnets
C 150.1.1.0 is directly connected, Serial0/0
150.2.0.0/24 is subnetted, 1 subnets
C 150.2.2.0 is directly connected, Serial0/1
```