ISIS中间系统到中间系统
本文展示了7台路由器(R1-R7)的IS-IS配置,形成多区域网络架构。R1-R3配置为区域49.0001的Level-1路由器,R4-R5为区域49.0002的Level-2路由器,R7属于区域49.0003。其中包含系统ID转换说明(如1.1.1.1转换为0000.0000.0001)和各接口IP地址配置。网络通过GigabitEthernet和Serial接口互联,形成包含Level-1和L
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R1:
router id 1.1.1.1
isis 1
network-entity 49.0001.0000.0000.0001.00
is-level level-1
interface GigabitEthernet0/0/0
ip address 10.1.123.1 255.255.255.0
isis enable 1
interface LoopBack0
ip address 1.1.1.1 255.255.255.0
isis enable 1
R2:
router id 2.2.2.2
isis 1
network-entity 49.0001.0000.0000.0002.00
interface GigabitEthernet0/0/0
ip address 10.1.123.2 255.255.255.0
isis enable 1
#
interface GigabitEthernet0/0/1
ip address 10.1.24.2 255.255.255.0
isis enable 1
interface LoopBack0
ip address 2.2.2.2 255.255.255.0
isis enable 1
注意:
49.0001.0000.0000.0001.00
49.0001 表示区域id (49 国际组织分配 49表示任意使用类似私有ip)
0000.0000.0001 系统id 表示某个路由 类似router id
00 代表isis 工作于IP网络中
router id 和系统id 转换
例如:
router id 1.1.1.1
001.001.001.001---->0010.0100.1001
router id 192.168.2.2
192.168.002.002----->1921.6800.2002
R3:
router id 3.3.3.3
isis 1
network-entity 49.0001.0000.0000.0003.00
interface Serial4/0/0
link-protocol ppp
ip address 10.1.34.3 255.255.255.0
isis enable 1
interface GigabitEthernet0/0/0
ip address 10.1.123.3 255.255.255.0
isis enable 1
R4:
router id 4.4.4.4
isis 1
is-level level-2
network-entity 49.0002.0000.0000.0004.00
interface Serial4/0/0
link-protocol ppp
ip address 10.1.34.4 255.255.255.0
isis enable 1
interface GigabitEthernet0/0/0
ip address 10.1.24.4 255.255.255.0
isis enable 1
#
interface GigabitEthernet0/0/1
ip address 10.1.45.4 255.255.255.0
isis enable 1
#
interface LoopBack0
ip address 4.4.4.4 255.255.255.0
isis enable 1
R5:
router id 5.5.5.5
isis 1
is-level level-2
network-entity 49.0002.0000.0000.0005.00
interface GigabitEthernet0/0/0
ip address 10.1.45.5 255.255.255.0
isis enable 1
#
interface GigabitEthernet0/0/1
ip address 10.1.56.5 255.255.255.0
isis enable 1
#
interface GigabitEthernet0/0/2
ip address 10.1.58.5 255.255.255.0
interface LoopBack0
ip address 5.5.5.5 255.255.255.0
isis enable 1
R6:
router id 6.6.6.6
interface GigabitEthernet0/0/0
ip address 10.1.56.6 255.255.255.0
isis enable 1
#
interface GigabitEthernet0/0/1
ip address 10.1.67.6 255.255.255.0
isis enable 1
#
interface LoopBack0
ip address 6.6.6.6 255.255.255.0
isis enable 1
R7:
router id 7.7.7.7
isis 1
network-entity 49.0003.0000.0000.0007.00
#
interface GigabitEthernet0/0/0
ip address 10.1.67.7 255.255.255.0
isis enable 1
interface LoopBack0
ip address 7.7.7.7 255.255.255.0
isis enable 1
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