8.2 多区域集成ISIS配置

图片[1]-8.2 多区域集成ISIS配置-大赛人网
图8-2  多区域集成ISIS配置网络拓扑

1.R1配置ISIS

[R1]ISIS 1
[R1-isis-1]network-entity 49.0001.0000.0000.1111.00
[R1]interface GigabitEthernet 0/0/1
[R1-GigabitEthernet0/0/1]isis enable 1
[R1]interface LoopBack 0
[R1-LoopBack0]isis enable 1

2.R2配置ISIS

[R2]isis 1
[R2-isis-1]network-entity 49.0001.0000.0000.2222.00
[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]isis enable 1
[R2]interface GigabitEthernet 0/0/0
[R2-GigabitEthernet0/0/0]isis enable 1
[R2]interface LoopBack 0
[R2-LoopBack0]isis enable 1

3.R3配置ISIS

[R3]isis 1
[R3-isis-1]network-entity 49.0002.0000.0000.3333.00
[R3]interface GigabitEthernet 0/0/0
[R3-GigabitEthernet0/0/0]isi enable 1
[R3]interface GigabitEthernet 0/0/1
[R3-GigabitEthernet0/0/1]isis enable 1
[R3]interface LoopBack 0
[R3-LoopBack0]isis enable 1

4.R4配置ISIS

[R4]isis 1
[R4-isis-1]network-entity 49.0002.0000.0000.4444.00
[R4]interface GigabitEthernet 0/0/0
[R4-GigabitEthernet0/0/0]isis enable 1
[R4]interface GigabitEthernet 0/0/1
[R4-GigabitEthernet0/0/1]isis enable 1
[R4]interface LoopBack 0
[R4-LoopBack0]isis enable 1

5.R5配置ISIS

[R5]isis 1
[R5-isis-1]network-entity 49.0003.0000.0000.5555.00
[R5]interface GigabitEthernet 0/0/0
[R5-GigabitEthernet0/0/0]isis enable 1
[R5]interface GigabitEthernet 0/0/1
[R5-GigabitEthernet0/0/1]isis enable 1
[R5]interface LoopBack 0
[R5-LoopBack0]isis enable 1

6.R6配置ISIS

[R6]isis 1
[R6-isis-1]network-entity 49.0003.0000.0000.6666.00
[R6]interface GigabitEthernet 0/0/0
[R6-GigabitEthernet0/0/0]isis  enable 1
[R6]interface GigabitEthernet 0/0/1
[R6-GigabitEthernet0/0/1]isis
[R6-GigabitEthernet0/0/1]isis enable 1
[R6]interface LoopBack 0
[R6-LoopBack0]isis enable 1 

7.查看ISIS peer

<R2>display isis peer
0000.0000.1111  GE0/0/1            0000.0000.2222.01 Up   23s      L1(L1L2) 64 
0000.0000.1111  GE0/0/1            0000.0000.2222.01 Up   25s      L2(L1L2) 64 
0000.0000.3333  GE0/0/0            0000.0000.3333.01 Up   8s       L2(L1L2) 64 

8.定义骨干区域和普通区域。

[R1]isis 1
[R1-isis-1]is-level level-1
//R1为普通路由器

[R2]isis 1
[R2-isis-1]is-level level-1-2
//R2是连接骨干区域和普通区域的路由器,默认路由器类型

[R3]isis 1
[R3-isis-1]is-level level-2
//R3是骨干区域

[R4]isis 1
[R4-isis-1]is-level level-2
//R4是骨干区域

[R5]isis 1
[R5-isis-1]is-level level-1-2
//R5是连接骨干区域和普通区域的路由器,默认路由器类型

[R6]isis 1
[R6-isis-1]is-level level-1
//R1为普通路由器

9. level-1的路由器只维持本区域的数据库, level-2维持所以出于骨干区域的数据库,level-1-2包含level-1、level-2的数据库。

[R1]display isis lsdb 
0000.0000.1111.00-00* 0x00000008   0x8b73        937           86      0/0/0   
0000.0000.2222.00-00  0x0000000c   0x7f0         1080          102     1/0/0   
0000.0000.2222.01-00  0x00000003   0x3fa3        916           55      0/0/0   

[R2]display isis lsdb
    Level-1 Link State Database
LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.1111.00-00  0x00000008   0x8b73        599           86      0/0/0   
0000.0000.2222.00-00* 0x0000000c   0x7f0         743           102     1/0/0   
0000.0000.2222.01-00* 0x00000003   0x3fa3        580           55      0/0/0  
 Level-2 Link State Database

LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.1111.00-00  0x0000000a   0xb5ec        453           110     0/0/0   
0000.0000.2222.00-00* 0x00000015   0x1623        784           114     0/0/0   
0000.0000.2222.01-00* 0x00000002   0xb302        0 (609)       27      0/0/0   
0000.0000.3333.00-00  0x0000000e   0xc6bc        763           113     0/0/0   
0000.0000.3333.01-00  0x00000002   0xfc80        1091          55      0/0/0   
0000.0000.3333.02-00  0x00000002   0x4bec        763           55      0/0/0   
0000.0000.4444.00-00  0x00000010   0x8581        782           113     0/0/0   
0000.0000.4444.01-00  0x00000001   0x10c3        147           55      0/0/0   
0000.0000.5555.00-00  0x00000015   0xba3d        1091          114     0/0/0   
0000.0000.6666.00-00  0x0000000c   0x4b77        781           110     0/0/0   
0000.0000.6666.02-00  0x00000001   0x2b1f        280           55      0/0/0   

<R3>display isis lsdb 
 Level-2 Link State Database

LSPID                 Seq Num      Checksum      Holdtime      Length  ATT/P/OL
-------------------------------------------------------------------------------
0000.0000.1111.00-00  0x0000000a   0xb5ec        400           110     0/0/0   
0000.0000.2222.00-00  0x00000015   0x1623        730           114     0/0/0   
0000.0000.3333.00-00* 0x0000000e   0xc6bc        712           113     0/0/0   
0000.0000.3333.01-00* 0x00000002   0xfc80        1040          55      0/0/0   
0000.0000.3333.02-00* 0x00000002   0x4bec        712           55      0/0/0   
0000.0000.4444.00-00  0x00000010   0x8581        731           113     0/0/0   
0000.0000.4444.01-00  0x00000001   0x10c3        94            55      0/0/0   
0000.0000.5555.00-00  0x00000015   0xba3d        1040          114     0/0/0   
0000.0000.6666.00-00  0x0000000c   0x4b77        730           110     0/0/0   
0000.0000.6666.02-00  0x00000001   0x2b1f        227           55      0/0/0   

10.查看ISIS路由表

<R1>display ip routing-table protocol isis 
  0.0.0.0/0   ISIS-L1 15   10          D   12.1.1.2        GigabitEthernet0/0/1
        2.2.2.2/32  ISIS-L1 15   10          D   12.1.1.2        GigabitEthernet0/0/1
       23.0.0.0/8   ISIS-L1 15   20          D   12.1.1.2        GigabitEthernet0/0/1

11.R2、R5( Level-1-2)配置只发送必要类型的hello

[R2]interface GigabitEthernet 0/0/1
[R2-GigabitEthernet0/0/1]isis circuit-level level-1

[R5]interface GigabitEthernet 0/0/1
[R5-GigabitEthernet0/0/1]isis circuit-level level-1
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