IS-IS配置及原理
原理IS-IS配置拓扑图R1配置R2配置R3配置R4配置R5配置查看命令
测试
原理
IS-IS：中间系统（路由器）间的路由协议 ES-IS：主机到路由器
IS-IS和OSPF的区别
ISISOSPF
支持CLNP网络、IP网络目前只支持IP网络工作在网络层工作在IP层
NET地址有三部分组成 ( area ID )+( system ID )+ SEL( 00 ) Area ID： 标识路由域中的区域 system ID： 用来在区域内标识主机或路由器，固定长度位48bit(6字节) NET是一种特殊的NSAP(SEL=00)
IS-IS路由器的三种类型 level -1 路由器（只能创建level-1的LSDB）相同区域 level -2 路由器（只能创建level-2的LSDB）不同区域 level -1-2 路由器（路由器的默认类型，能同时创建level -1 和 level -2 的LSDB)
level 邻居的建立 相同区域号（Area ID）
类型类型可否建立邻居
level-1level-1可以level-1level-1-2可以level-1level-2不可以
不同区域号（Area ID）
类型类型可否建立邻居
level-2level-2可以level-2level-1-2可以level-1level-2不可以level-1level-1-2不可以
IS-IS配置
拓扑图
R1配置
<Huawei>undo terminal monitor //关闭弹出消息
<Huawei>system-view //进入系统模式
[Huawei]sysname R1 //重命名
[R1]user-interface console 0
[R1-ui-console0]idle-timeout 0 0 //设置永不超时
[R1-ui-console0]q
[R1]int g0/0/0 //设置IP地址
[R1-GigabitEthernet0/0/0]ip add 12.1.1.1 24
[R1-GigabitEthernet0/0/0]q
[R1]interface LoopBack 0
[R1-LoopBack0]ip add 1.1.1.1 32 //测试地址
[R1-LoopBack0]q
[R1]isis
[R1-isis-1]network-entity 49.0001.1111.1111.1111.00 //设置NET地址
[R1]interface LoopBack 0
[R1-LoopBack0]isis enable 1 //进入接口设置IS-IS进程
[R1-LoopBack0]int g0/0/0
[R1-GigabitEthernet0/0/0]isis enable 1
[R1-GigabitEthernet0/0/0]q
[R1]
R2配置
<Huawei>undo terminal monitor
<Huawei>system-view
[Huawei]sysname R2
[R2]user-interface console 0
[R2-ui-console0]idle-timeout 0 0
[R2-ui-console0]q
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.1.1.2 24
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]ip add 23.1.1.2 24
[R2-GigabitEthernet0/0/1]q
[R2]int LoopBack 0
[R2-LoopBack0]ip add 2.2.2.2 32
[R2-LoopBack0]isis
[R2-isis-1]network-entity 49.0001.2222.2222.2222.00
[R2-isis-1]q
[R2]int LoopBack 0
[R2-LoopBack0]isis enable 1
[R2-LoopBack0]q
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]isis enable 1
[R2-GigabitEthernet0/0/0]int g0/0/1
[R2-GigabitEthernet0/0/1]isis enable 1
[R2-GigabitEthernet0/0/1]q
[R2]
R3配置
<Huawei>undo terminal monitor
<Huawei>system-view
[Huawei]sysname R3
[R3]user-interface console 0
[R3-ui-console0]idle-timeout 0 0
[R3-ui-console0]q
[R3]int g0/0/0
[R3-GigabitEthernet0/0/0]ip add 23.1.1.3 24
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 34.1.1.3 24
[R3-GigabitEthernet0/0/1]q
[R3]isis
[R3-isis-1]network-entity 49.0001.3333.3333.3333.00
[R3-isis-1]q
[R3]int LoopBack 0
[R3-LoopBack0]ip add 3.3.3.3 32
[R3-LoopBack0]isis enable 1
[R3-LoopBack0]int g0/0/0
[R3-GigabitEthernet0/0/0]isis enable 1
[R3-GigabitEthernet0/0/0]int g0/0/1
[R3-GigabitEthernet0/0/1]isis enable 1
R4配置
<Huawei>undo terminal monitor
<Huawei>system-view
[Huawei]sysname R4
[R4]user-interface console 0
[R4-ui-console0]idle-timeout 0 0
[R4-ui-console0]q
[R4]int g0/0/0
[R4-GigabitEthernet0/0/0]ip add 34.1.1.4 24
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]ip add 45.1.1.4 24
[R4-GigabitEthernet0/0/1]q
[R4]isis
[R4-isis-1]network-entity 47.0001.4444.4444.4444.00
[R4-isis-1]q
[R4]int LoopBack 0
[R4-LoopBack0]ip add 4.4.4.4 32
[R4-LoopBack0]isis enable 1
[R4-LoopBack0]int g0/0/0
[R4-GigabitEthernet0/0/0]isis enable 1
[R4-GigabitEthernet0/0/0]int g0/0/1
[R4-GigabitEthernet0/0/1]isis enable 1
R5配置
<Huawei>undo terminal monitor
<Huawei>system-view
[Huawei]sysname R5
[R5]user-interface console 0
[R5-ui-console0]idle-timeout 0 0
[R5-ui-console0]q
[R5]int g0/0/0
[R5-GigabitEthernet0/0/0]ip add 45.1.1.5 24
[R5-GigabitEthernet0/0/0]q
[R5]isis
[R5-isis-1]network-entity 47.0001.5555.5555.5555.00
[R5-isis-1]q
[R5]int LoopBack 0
[R5-LoopBack0]ip add 5.5.5.5 32
[R5-LoopBack0]isis enable 1
[R5-LoopBack0]q
[R5-LoopBack0]int g0/0/0
[R5-GigabitEthernet0/0/0]isis enable 1
[R5-GigabitEthernet0/0/0]
查看命令
display isis peer //查看IS-IS邻居
display isis lsdb //查看IS-IS数据库
display isis in //查看IS-IS进程
display isis route //查看IS-IS路由表
display ip routing-table protocol isis
测试
