AR28/AR46 系列路由器 IS-IS 典型配置
【需求】
A、B、C和D四台路由器属于同一自治系统。这四台路由器上运行IS-IS路由协议，从而实现路由的互通。在网络设计中，A、B、C和D四台路由器属于同一个区域。
【组网图】
 
【配置脚本】

RTA配置脚本
[RTA] isis
[RTA-isis] network-entity 86.0001.0000.0000.0005.00
[RTA] interface ethernet 2/0/0
[RTA-Ethernet2/0/0] ip address 100.0.0.1 255.255.255.0
[RTA-Ethernet2/0/0] isis enable
[RTA-Ethernet2/0/0] interface serial 1/0/0
[RTA-serial1/0/0] ip address 100.10.0.1 255.255.255.0
[RTA-serial1/0/0] isis enable
[RTA-serial1/0/0] interface ethernet 3/0/0
[RTA-ethernet 3/0/0] ip address 100.20.0.1 255.255.255.0
[RTA-ethernet 3/0/0] isis enable
RTB配置脚本
[RTB] isis
[RTB-isis] network-entity 86.0001.0000.0000.0006.00
[RTB] interface ethernet 2/0/0
[RTB-Ethernet2/0/0] ip address 200.0.0.1 255.255.255.0
[RTB-Ethernet2/0/0] isis enable
[RTB-Ethernet2/0/0] interface ethernet 3/0/0
[RTB-ethernet 3/0/0] ip address 200.10.0.1 255.255.255.0
[RTB-ethernet 3/0/0] isis enable
[RTB-ethernet 3/0/0] interface serial 2/0/0
[RTB-serial2/0/0] ip address 100.10.0.2 255.255.255.0
[RTB-serial2/0/0] isis enable
RTC配置脚本
[RTC] isis
[RTC-isis] network-entity 86.0001.0000.0000.0007.00
[RTC] interface ethernet 1/0/0
[RTC-Ethernet1/0/0] ip address 200.10.0.2 255.255.255.0
[RTC-Ethernet1/0/0] isis enable
[RTC-Ethernet1/0/0] interface ethernet 2/0/0
[RTC-Ethernet2/0/0] ip address 200.20.0.1 255.255.255.0
[RTC-Ethernet2/0/0] isis enable
RTD配置脚本
[RTD] isis
[RTD-isis] network-entity 86.0001.0000.0000.0008.00
[RTD] interface ethernet 1/0/0
[RTD-Ethernet1/0/0] ip address 100.20.0.2 255.255.255.0
[RTD-Ethernet1/0/0] isis enable
[RTD-Ethernet1/0/0] interface ethernet 2/0/0
[RTD-Ethernet2/0/0] ip address 100.30.0.1 255.255.255.0
[RTD-Ethernet2/0/0] isis enable