配置如图:

EIGRP的AD(管理距离)、AD(宣告距离)、FD(可行距离)_第1张图片

说明:这个文档只是介绍一下几个参数在哪查看。

 

看一下路由信息:

R2

     1.0.0.0/32 is subnetted, 1 subnets

D       1.1.1.1 [90/156160] via 192.168.2.1, 00:05:26, FastEthernet1/1

                [90/10130432] via 192.168.1.1, 00:05:26, FastEthernet1/0

     2.0.0.0/32 is subnetted, 1 subnets

C       2.2.2.2 is directly connected, Loopback0

C    192.168.1.0/24 is directly connected, FastEthernet1/0

C    192.168.2.0/24 is directly connected, FastEthernet1/1

EIGRP拓扑表信息:

R2# sh ip eigrp 1 topology

IP-EIGRP Topology Table for AS(1)/ID(2.2.2.2)

 

Codes: P - Passive, A - Active, U - Update, Q - Query, R - Reply,

       r - reply Status, s - sia Status

 

P 1.1.1.1/32, 1 successors, FD is 156160

        via 192.168.2.1 (156160/128256), FastEthernet1/1

        via 192.168.1.1 (10130432/128256), FastEthernet1/0

P 2.2.2.2/32, 1 successors, FD is 128256

        via Connected, Loopback0

P 192.168.1.0/24, 1 successors, FD is 10002432

        via Connected, FastEthernet1/0

        via 192.168.2.1 (30720/28160), FastEthernet1/1

P 192.168.2.0/24, 1 successors, FD is 28160

        via Connected, FastEthernet1/1

下面进行解释说明:

D       1.1.1.1 [90/156160] via 192.168.2.1, 00:05:26, FastEthernet1/1

              [90/10130432] via 192.168.1.1, 00:05:26, FastEthernet1/0

这里的90指的是EIGRP的管理距离,相关的管理距离数值有:

直连:0

使用出战接口配置的路由:0

使用下一跳地址配置的静态路由:1

EIGRP汇总路由:5

OSPF110

RIP120

外部EIGRP170

后面的156160是路由的度量值,这里这条路由的FD(可行距离)的值。

P 1.1.1.1/32, 1 successors, FD is 156160

        via 192.168.2.1 (156160/128256), FastEthernet1/1

        via 192.168.1.1 (10130432/128256), FastEthernet1/0

在这里明确标出了FD的值,后面的128256是宣告距离(AD)。

 

PS:在本案例中做了非等价路径路由负载均衡,variance 111