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  • 思科IS-IS多区域和汇总配置

    实验如下图示:

    R1:
    interface Loopback0
     ip address 172.16.2.1 255.255.255.0 secondary
     ip address 172.16.1.1 255.255.255.0
     ip router isis 
     isis circuit-type level-1
    interface Serial1/1
     ip address 172.16.255.1 255.255.255.252
     ip router isis 
     serial restart-delay 0
     isis circuit-type level-2-only
    router isis 
     net 49.0001.ca00.0bbc.0000
     is-type level-1-2  //一般缺省值为level-1-2,不会显示出来
    
    R2:
    interface Serial1/0
     ip address 172.16.255.2 255.255.255.252
     ip router isis 
     isis circuit-type level-1-2  //一般缺省值为level-1-2,不会显示出来
    interface Serial1/1
     ip address 172.16.255.5 255.255.255.252
     ip router isis 
     isis circuit-type level-2-only
    router isis 
     net 49.0002.ca01.0bbc.0000
    
    R3:
    interface Serial1/0
     ip address 172.16.255.6 255.255.255.252
     ip router isis
    interface Serial1/1
     ip address 172.16.255.9 255.255.255.252
     ip router isis 
     isis circuit-type level-2-only
    router isis 
     net 49.0002.ca02.0bbc.0000
    
    R4:
    interface Serial1/0
     ip address 172.16.255.10 255.255.255.252
     ip router isis 
     isis circuit-type level-2-only
    interface Serial1/1
     ip address 172.16.255.13 255.255.255.252
     ip router isis 
    router isis 
     net 49.0003.ca03.0bbc.0000
    
    R5:
    interface Loopback0
     ip address 172.16.128.1 255.255.255.0
     ip router isis 
     isis circuit-type level-1
    interface Loopback1
     ip address 172.16.129.1 255.255.255.0
     ip router isis 
    interface Serial1/0
     ip address 172.16.255.14 255.255.255.252
     ip router isis 
    router isis 
     net 49.0003.ca04.0bbc.0000
    
    R5#show ip route isis
         172.16.0.0/16 is variably subnetted, 8 subnets, 2 masks
    i L2    172.16.255.0/30 [115/40] via 172.16.255.13, Serial1/0
    i L2    172.16.255.4/30 [115/30] via 172.16.255.13, Serial1/0
    i L2    172.16.255.8/30 [115/20] via 172.16.255.13, Serial1/0
    i L2    172.16.1.0/24 [115/50] via 172.16.255.13, Serial1/0
    i L2    172.16.2.0/24 [115/50] via 172.16.255.13, Serial1/0
    
    R1#show ip route isis 
         172.16.0.0/16 is variably subnetted, 8 subnets, 2 masks
    i L2    172.16.128.0/24 [115/50] via 172.16.255.2, Serial1/1
    i L2    172.16.129.0/24 [115/50] via 172.16.255.2, Serial1/1
    i L2    172.16.255.4/30 [115/20] via 172.16.255.2, Serial1/1
    i L2    172.16.255.8/30 [115/30] via 172.16.255.2, Serial1/1
    i L2    172.16.255.12/30 [115/40] via 172.16.255.2, Serial1/1
    
    R1#ping 172.16.128.1
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 172.16.128.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 48/60/88 ms
    
    R5#ping 172.16.1.1 
    
    Type escape sequence to abort.
    Sending 5, 100-byte ICMP Echos to 172.16.1.1, timeout is 2 seconds:
    !!!!!
    Success rate is 100 percent (5/5), round-trip min/avg/max = 60/73/84 ms
    R1:
    router isis
     summary-address 172.16.0.0 255.255.252.0
    
    R4:
    show ip route isis
         172.16.0.0/16 is variably subnetted, 7 subnets, 3 masks
    i L1    172.16.128.0/24 [115/20] via 172.16.255.14, Serial1/1
    i L1    172.16.129.0/24 [115/20] via 172.16.255.14, Serial1/1
    i L2    172.16.255.0/30 [115/30] via 172.16.255.9, Serial1/0
    i L2    172.16.255.4/30 [115/20] via 172.16.255.9, Serial1/0
    i L2    172.16.0.0/22 [115/40] via 172.16.255.9, Serial1/0
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  • 原文地址:https://www.cnblogs.com/vincent-liang/p/6512574.html
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