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  • 浮动路由

    浮动路由指的是配置两条静态路由,默认选取链路质量优(带宽大的)作为主路径,当路径出现故障时,由带宽较小的备份路由顶替,保持网络的不中断

    浮动路由的地址是默认不显示的,只有主路径失效时,该路径才显示

     

    例题:

    R1:

    <Huawei>undo terminal monitor

    Info: Current terminal monitor is off.

    <Huawei>system-view

    Enter system view, return user view with Ctrl+Z.

    [Huawei]sysname R1

    [R1]user-interface console 0

    [R1-ui-console0]idle-timeout 0 0

    [R1-ui-console0]quit

    [R1]int e0/0/0

    [R1-Ethernet0/0/0]ip add 10.1.3.1 24

    [R1-Ethernet0/0/0]undo shut

    Info: Interface Ethernet0/0/0 is not shutdown.

    [R1-Ethernet0/0/0]int g0/0/0

    [R1-GigabitEthernet0/0/0]ip add 10.1.1.1 24

    [R1-GigabitEthernet0/0/0]undo shut

    Info: Interface GigabitEthernet0/0/0 is not shutdown.

    [R1-GigabitEthernet0/0/0]int loop 0

    [R1-LoopBack0]ip add 1.1.1.1 32

    [R1-LoopBack0]quit

    [R1]ip route-static 0.0.0.0 0.0.0.0 10.1.3.2 preference 61

    静态路由优先级是60,preference设置比60大即可

     

    R2:

    <Huawei>undo terminal monitor

    Info: Current terminal monitor is off.

    <Huawei>system-view

    Enter system view, return user view with Ctrl+Z.

    [Huawei]sysname R2

    [R2]user-interface console 0

    [R2-ui-console0]idle-timeout 0 0

    [R2-ui-console0]quit

    [R2]int e0/0/0

    [R2-Ethernet0/0/0]ip add 10.1.3.2 24

    [R2-Ethernet0/0/0]undo shut

    Info: Interface Ethernet0/0/0 is not shutdown.

    [R2-Ethernet0/0/0]int g0/0/0

    [R2-GigabitEthernet0/0/0]ip add 10.1.1.2 24

    [R2-GigabitEthernet0/0/0]undo shut

    Info: Interface GigabitEthernet0/0/0 is not shutdown.

    [R2-GigabitEthernet0/0/0]int loop 0

    [R2-LoopBack0]ip add 2.2.2.2 32

    [R2-LoopBack0]quit

    [R2]int g0/0/1

    [R2-GigabitEthernet0/0/1]ip add 10.1.2.2 24

    [R2-GigabitEthernet0/0/1]undo shut

    Info: Interface GigabitEthernet0/0/1 is not shutdown.

    [R2-GigabitEthernet0/0/1]quit

    [R2]ip route-static 1.1.1.1 32 10.1.3.1 preference 61

     

    R3:

    <Huawei>undo terminal monitor

    Info: Current terminal monitor is off.

    <Huawei>system-view

    Enter system view, return user view with Ctrl+Z.

    [Huawei]sysname R3

    [R3]user-interface console 0

    [R3-ui-console0]idle-timeout 0 0

    [R3-ui-console0]quit

    [R3]int g0/0/0

    [R3-GigabitEthernet0/0/0]ip add 10.1.2.3 24

    [R3-GigabitEthernet0/0/0]undo shut

    Info: Interface GigabitEthernet0/0/0 is not shutdown.

    [R3-GigabitEthernet0/0/0]int loop 0

    [R3-LoopBack0]ip add 3.3.3.3 32

    [R3-LoopBack0]quit

     

    命令输入完成后开始验证:

    R1:

    Int g0/0/0

    Shutdown

    Quit

    Display ip routing-table

    手动shutdown该链路,测试是否显示备选路由

    0.0.0.0/0   Static  61   0          RD   10.1.3.2        Ethernet0/0/0

    1.1.1.1/32  Direct  0    0           D   127.0.0.1       LoopBack0

    10.1.3.0/24  Direct  0    0           D   10.1.3.1        Ethernet0/0/0

    10.1.3.1/32  Direct  0    0           D   127.0.0.1       Ethernet0/0/0

    127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0

          127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0

     

     

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  • 原文地址:https://www.cnblogs.com/Xing88/p/13430836.html
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