(ISISOSPF实验)ISIS与OSPF域间选路比较

ISIS 与 OSPF 域间选路比较（ ISIS 部分）

TOPO 如下 ：

 

基本配置如下 ：

l        R1

l        R2

l        R3

l        R4

l        R5

 

R1 基本配置

interface Loopback0  ip address 1.1.1 .1 255.255.255.0 ! interface Serial1/0  ip address 12.1.1 .1 255.255.255.0  ip router isis ! interface Serial2/0  ip address 13.1.1 .1 255.255.255.0  ip router isis ! router isis  net 02.0010.0100.1001.00  passive-interface Loopback0

 

R2 基本配置

interface Loopback0  ip address 2.2.2 .2 255.255.255.0 ! interface Serial1/0  ip address 24.1.1.2 255.255.255.0  ip router isis ! interface Serial2/0  ip address 12.1.1 .2 255.255.255.0  ip router isis ! router isis  net 01.0020.0200.2002.00  passive-interface Loopback0

 

R3 基本配置

interface Loopback0  ip address 3.3.3 .3 255.255.255.0 ! interface Ethernet0/0  ip address 34.1.1.3 255.255.255.0  ip router isis ! interface Serial1/0  ip address 13.1.1 .3 255.255.255.0  ip router isis ! interface Serial2/0  ip address 35.1.1.3 255.255.255.0  ip router isis ! router isis  net 03.0030.0300.3003.00  passive-interface Loopback0

 

R4 基本配置

interface Loopback0  ip address 4.4.4 .4 255.255.255.0 ! interface Ethernet0/0  ip address 34.1.1.4 255.255.255.0  ip router isis ! interface Serial2/0  ip address 24.1.1.4 255.255.255.0  ip router isis ! router isis  net 03.0040.0400.4004.00  passive-interface Loopback0 !

R5 基本配置

interface Loopback0  ip address 5.5.5 .5 255.255.255.0 ! interface Serial1/0  ip address 35.1.1.5 255.255.255.0  ip router isis  ! router isis  net 03.0050.0500.5005.00  is-type level-1  passive-interface Loopback0

 

 

测试 ⑴ ：

在 R3 上查看 2.0.0 .0/24 的路由，有两条路径做负载

r3#sho ip route | be 2.0.0 .0/24

     2.0.0 .0/24 is subnetted, 1 subnets

i L2    2.2.2 .0 [115/20] vi a 13.1.1 .1, Serial1/0

                [115/20] via 34.1.1.4, Ethernet0/0

r3#traceroute 2.2.2 .2

Type escape sequence to abort.

Tracing the route to 2.2.2 .2

  1  *

    13.1.1 .1 32 msec