理论+实验：eNSP中配置静态路由
@[toc]shell
简单介绍命令
以太网工做在数据链路层ide
数据的三要素：1.语法2.语义3.同步（接口速率） oop
http：//7n4.cn/或https://mac.51240.xom能够查询MAC地址厂商测试
display mac-address 查看mac地址表code
sysname R1 更名为R1orm
dis version 查看系统版本blog
interface gigabitethernet0/0/1 进入g0/0/1接口接口
ip- subnet-vlan 查看接口vlan网段信息图片
speed 10 接口速率配置为10Mip
undo negotiation auto 关闭自动协商
dis vlan 查看vlan接口分布表
int g0/0/0 进入g0/0/0 接口
ip add 192.168.1.1. 24 配置接口ip地址为192.168.1.1 子网掩码24位
undo shutdown 启用
pre 优先级
cost 花销值
浮动路由
即备份一条优先级比当前路由低的路由
实验名称：
实现三台路由器的loop 接口互联互通
1.配置参数已设置，接下来就开始配置
2.思路：loop接口的ip地址至关于路由器自身的一个直连网段
配置各个路由器的接口ip就开始配置相应的路由条目
1.1.1.1 去ping 2.2.2.2，有两条路可走，分别是R1》》R2，和R1》》R3》》R2，能够分别配置，先配置的优先级最高，后配置的最备用，等待优先级高的路由失效后就会触发优先级低的路由，以避免由于链路损坏而影响数据及时传输
同理，1.1.1.1ping3.3.3.3 也是一样的道理
2.2.2.2ping3.3.3.3也是
在这里详细解释1.1.1.1去ping2.2.2.2的过程，剩下的触类旁通便可
R1》》R2
对于1.1.1.1而言，2.2.2.2是R1的非直连网段，因此数据过去的话须要去给R1配置一条2.2.2.0的静态路由，下一跳为12.0.0.2；数据回来就是从R2返回到R1，须要给R2配置一条1.1.1.0的静态路由，下一跳为12.0.0.1
R1》》R3》》R2
首先，值得注意的是，数据一来一回的优先级必须在同一链路上，不能够分开
R1的数据传到R2，通过R3，须要给R1配置一条2.2.2.0的条目，下一跳为13.0.0.3，由于这个条目是第二个配置，因此在12.0.0.0正常做用的状况下，第二个条目不会被触发，这里配置这一条目，仅做备用；2.2.2.0也并非R3的直连网段，因此须要给R3配置一条2.2.2.0的静态路由，下一跳为23.0.0.2。数据过去了，也要回来，配置路由的思路跟过去的一致，这里就不赘述了，开始配置
3.开启设备，先配置ip
R1
The device is running! '显示设备已运行' <Huawei>sys 'systtem-view，进入系统视图' Enter system view, return user view with Ctrl+Z. '反馈已进入' [Huawei]undo info-center enable '关掉信息中心' Info: Information center is disabled. '反馈已关掉' [Huawei]int g0/0/0 '进入g0/0/0接口' [Huawei-GigabitEthernet0/0/0]ip add 12.0.0.1 24 '配置ip地址' [Huawei-GigabitEthernet0/0/0]undo shutdown '启用' Info: Interface GigabitEthernet0/0/0 is not shutdown. '反馈已启用' [Huawei-GigabitEthernet0/0/0]int g0/0/1 '进入g0/0/1接口' [Huawei-GigabitEthernet0/0/1]ip add 13.0.0.1 24 '配置IP地址' [Huawei-GigabitEthernet0/0/1]undo shutdown '启用' Info: Interface GigabitEthernet0/0/1 is not shutdown. [Huawei-GigabitEthernet0/0/1]q '返回到系统视图' [Huawei]int LoopBack 0 '进入Loopback 0 接口' [Huawei-LoopBack0]ip address 1.1.1.1 24 '配置IP 地址' [Huawei-LoopBack0]q '返回，不须要手动启用' [Huawei]dis ip int brief '查看接口ip信息' *down: administratively down !down: FIB overload down ^down: standby (l): loopback (s): spoofing (d): Dampening Suppressed The number of interface that is UP in Physical is 4 The number of interface that is DOWN in Physical is 8 The number of interface that is UP in Protocol is 4 The number of interface that is DOWN in Protocol is 8 Interface IP Address/Mask Physical Protocol Ethernet0/0/0 unassigned down down Ethernet0/0/1 unassigned down down GigabitEthernet0/0/0 12.0.0.1/24 up up '已配置，up已启用' GigabitEthernet0/0/1 13.0.0.1/24 up up '已配置，up已启用' GigabitEthernet0/0/2 unassigned down down GigabitEthernet0/0/3 unassigned down down LoopBack0 1.1.1.1/24 up up(s) '已配置，up已启用' NULL0 unassigned up up(s) Serial0/0/0 unassigned down down Serial0/0/1 unassigned down down Serial0/0/2 unassigned down down Serial0/0/3 unassigned down down
R2的ip配置
[Huawei]sysname R2 '改名为R2' [R2] Nov 7 2019 19:37:53-08:00 R2 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25. 191.3.1 configurations have been changed. The current change number is 1, the ch ange loop count is 0, and the maximum number of records is 4095.u '没有及时关掉信息中心，就会出现这个信息' [R2]undo info-center enable '关掉信息中心' Info: Information center is disabled. '反馈关掉' [R2]int g0/0/0 '进入g0/0/0接口' [R2-GigabitEthernet0/0/0]ip add 12.0.0.2 24 '配IP地址' [R2-GigabitEthernet0/0/0]undo shutdown '启用' Info: Interface GigabitEthernet0/0/0 is not shutdown. [R2-GigabitEthernet0/0/0]int g0/0/2 '进入g0/0/2接口' [R2-GigabitEthernet0/0/2]ip add 23.0.0.2 24 '陪ip地址' [R2-GigabitEthernet0/0/2]undo shutdown '启用' Info: Interface GigabitEthernet0/0/2 is not shutdown. [R2-GigabitEthernet0/0/2]q '返回上一层' [R2]int LoopBack 0 '进入loopback接口' [R2-LoopBack0]ip add 2.2.2.2 24 '配置ip地址' [R2-LoopBack0]q '返回上一层' [R2]dis ip int b '查看接口ip信息表' *down: administratively down !down: FIB overload down ^down: standby (l): loopback (s): spoofing (d): Dampening Suppressed The number of interface that is UP in Physical is 4 The number of interface that is DOWN in Physical is 8 The number of interface that is UP in Protocol is 4 The number of interface that is DOWN in Protocol is 8 Interface IP Address/Mask Physical Protocol Ethernet0/0/0 unassigned down down Ethernet0/0/1 unassigned down down GigabitEthernet0/0/0 12.0.0.2/24 up up '已配置，Up已启用' GigabitEthernet0/0/1 unassigned down down GigabitEthernet0/0/2 23.0.0.2/24 up up '已配置，up已启用' GigabitEthernet0/0/3 unassigned down down LoopBack0 2.2.2.2/24 up up(s) '已配置，up已启用' NULL0 unassigned up up(s) Serial0/0/0 unassigned down down Serial0/0/1 unassigned down down Serial0/0/2 unassigned down down Serial0/0/3 unassigned down down [R2]
R3的ip 配置
<Huawei> <Huawei>system-view '进入系统视图' Enter system view, return user view with Ctrl+Z. [Huawei]undo info-center enable '关掉信息中心' Info: Information center is disabled. [Huawei]sysname R3 '改名为R3' [R3]int g0/0/1 '进入g0/0/1接口' [R3-GigabitEthernet0/0/1]ip add 13.0.0.3 24 '配置ip信息' [R3-GigabitEthernet0/0/1]undo shutdown '启用' Info: Interface GigabitEthernet0/0/1 is not shutdown. [R3-GigabitEthernet0/0/1]int g0/0/2 '进入g0/0/2接口' [R3-GigabitEthernet0/0/2]ip add 23.0.0.3 24 '配置ip地址' [R3-GigabitEthernet0/0/2]undo shutdown '启用' Info: Interface GigabitEthernet0/0/2 is not shutdown. [R3-GigabitEthernet0/0/2]q '返回上一层' [R3]int LoopBack 0 '进入loopback 0 接口' [R3-LoopBack0]ip add 3.3.3.3 24 '配置ip地址' [R3-LoopBack0]q '返回上一层' [R3]int LoopBack 1 [R3-LoopBack1]ip add 4.4.4.4 24 [R3-LoopBack1]q [R3]dis ip interface brief '查看接口ip信息表' *down: administratively down !down: FIB overload down ^down: standby (l): loopback (s): spoofing (d): Dampening Suppressed The number of interface that is UP in Physical is 5 The number of interface that is DOWN in Physical is 8 The number of interface that is UP in Protocol is 5 The number of interface that is DOWN in Protocol is 8 Interface IP Address/Mask Physical Protocol Ethernet0/0/0 unassigned down down Ethernet0/0/1 unassigned down down GigabitEthernet0/0/0 unassigned down down GigabitEthernet0/0/1 13.0.0.3/24 up up '已配置，up已开启' GigabitEthernet0/0/2 23.0.0.3/24 up up '已配置，up已开启' GigabitEthernet0/0/3 unassigned down down LoopBack0 3.3.3.3/24 up up(s) '已配置，uo已开启' LoopBack1 4.4.4.4/24 up up(s) '已配置，up已开启' NULL0 unassigned up up(s) Serial0/0/0 unassigned down down Serial0/0/1 unassigned down down Serial0/0/2 unassigned down down Serial0/0/3 unassigned down down
ip配置完毕，接下来就开始配置路由，先从1.1.1.1去ping 2.2.2.2的思路去配置
R1
<Huawei>system-view '进入系统视图' Enter system view, return user view with Ctrl+Z. [Huawei]sysname R1 '更名为R1' [R1] Nov 7 2019 19:45:23-08:00 R1 DS/4/DATASYNC_CFGCHANGE:OID 1.3.6.1.4.1.2011.5.25. 191.3.1 configurations have been changed. The current change number is 5, the ch ange loop count is 0, and the maximum number of records is 4095. '出现信息中心的信息' Info: Information center is disabled. '关掉信息中心' [R1]ip route-static 2.2.2.0 24 12.0.0.2 '配置静态路由，目标网段2.2.2.0，下一跳12.0.0.2'
R2
[R2]ip route-static 1.1.1.0 24 12.0.0.1 '配置静态路由，目标网段1.1.1.0 下一跳为12.0.0.1'
R1的1.1.1.1 去ping 2.2.2.2
[R1]ping -a 1.1.1.1 2.2.2.2 '-a指定源ip地址'
PING 2.2.2.2: 56 data bytes, press CTRL_C to break
Reply from 2.2.2.2: bytes=56 Sequence=1 ttl=255 time=50 ms '成功'
Reply from 2.2.2.2: bytes=56 Sequence=2 ttl=255 time=20 ms
Reply from 2.2.2.2: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 2.2.2.2: bytes=56 Sequence=4 ttl=255 time=30 ms
Reply from 2.2.2.2: bytes=56 Sequence=5 ttl=255 time=20 ms
--- 2.2.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 20/34/50 ms
接下来配置备用路由，即R1》》R3》》R2
R1
[R1]ip route-static 2.2.2.0 24 13.0.0.3 '配置静态路由'
R3
[R3]ip route-static 2.2.2.0 24 23.0.0.2 '配置静态路由'
再往回配
R2
[R2]ip route-static 1.1.1.0 24 23.0.0.3
R3
[R3]ip route-static 1.1.1.0 24 13.0.0.1
接下来能够把12.0.0.0/24的链路中断
R1操做方法
[R1]int g0/0/0 '进入对应网段接口' [R1-GigabitEthernet0/0/0]shutdown '关闭' [R1-GigabitEthernet0/0/0]q
这个时候再ping一波
[R1]ping -a 1.1.1.1 2.2.2.2
PING 2.2.2.2: 56 data bytes, press CTRL_C to break
Reply from 2.2.2.2: bytes=56 Sequence=1 ttl=254 time=80 ms
Reply from 2.2.2.2: bytes=56 Sequence=2 ttl=254 time=60 ms
Reply from 2.2.2.2: bytes=56 Sequence=3 ttl=254 time=60 ms
Reply from 2.2.2.2: bytes=56 Sequence=4 ttl=254 time=60 ms
Reply from 2.2.2.2: bytes=56 Sequence=5 ttl=254 time=50 ms
--- 2.2.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 50/62/80 ms
查看一下此时R1的路由表
[R1]dis ip routing-table '查看路由表'
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 7 Routes : 7
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Direct 0 0 D 1.1.1.1 LoopBack0
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.0/24 Static 60 0 RD 13.0.0.3 GigabitEthernet '注意这一条'
0/0/1
13.0.0.0/24 Direct 0 0 D 13.0.0.1 GigabitEthernet
0/0/1
13.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
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
恢复12.0.0.1链路，再次查看路由表
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]undo shutdown
[R1-GigabitEthernet0/0/0]q
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 9 Routes : 10
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Direct 0 0 D 1.1.1.1 LoopBack0
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.0/24 Static 60 0 RD 12.0.0.2 GigabitEthernet '注意这一条'
0/0/0
Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
12.0.0.0/24 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/0
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
13.0.0.0/24 Direct 0 0 D 13.0.0.1 GigabitEthernet
0/0/1
13.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
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
接下来就主要循序渐进把其他的以一样的形式配置好便可
1.1.1.1 ping 3.3.3.3
R1
[R1]ip route-static 3.3.3.0 24 13.0.0.3
R3
[R3]ip route-static 1.1.1.0 24 13.0.0.1 Error: The route already exists. '显示以前已被配置过'
备用路由
R1
[R1]ip route-static 3.3.3.0 24 12.0.0.2
R2
[R2]ip route-static 3.3.3.0 24 23.0.0.3
R3
[R3]ip route-static 1.1.1.0 24 23.0.0.2
R2
[R2]ip route-static 1.1.1.0 24 12.0.0.1 Error: The route already exists.
2.2.2.2 ping 3.3.3.3
R2
[R2]ip route-static 3.3.3.0 24 23.0.0.3 Error: The route already exists.
R3
[R3]ip route-static 2.2.2.0 24 23.0.0.2 Error: The route already exists.
再去配置另外一条备用路由
R2》》R1》》R3
R2
[R2]ip route-static 3.3.3.0 24 12.0.0.1
R1
[R1]ip route-static 3.3.3.0 24 13.0.0.3 Error: The route already exists.
R3
[R3]ip route-static 2.2.2.0 24 13.0.0.1
R1
[R1]ip route-static 2.2.2.0 24 12.0.0.2 Error: The route already exists.
完毕
接下来1.1.1.1 ping 3.3.3.3
[R1]ping -a 1.1.1.1 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=255 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=255 time=30 ms
Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 3.3.3.3 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 30/42/50 ms
2.2.2.2去ping 3.3.3.3
[R2]ping -a 2.2.2.2 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=255 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=255 time=20 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 3.3.3.3 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 20/42/50 ms
查看各个路由器的路由表
R1
[R1]dis ip routing-table '查看路由表'
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 12
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Direct 0 0 D 1.1.1.1 LoopBack0
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.0/24 Static 60 0 RD 12.0.0.2 GigabitEthernet
0/0/0
Static 60 0 RD 13.0.0.3 GigabitEthernet '备用路由'
0/0/1
3.3.3.0/24 Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
Static 60 0 RD 12.0.0.2 GigabitEthernet '备用路由'
0/0/0
12.0.0.0/24 Direct 0 0 D 12.0.0.1 GigabitEthernet
0/0/0
12.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
13.0.0.0/24 Direct 0 0 D 13.0.0.1 GigabitEthernet
0/0/1
13.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
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
R2
[R2]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 12
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Static 60 0 RD 12.0.0.1 GigabitEthernet
0/0/0
Static 60 0 RD 23.0.0.3 GigabitEthernet '备用路由'
0/0/2
2.2.2.0/24 Direct 0 0 D 2.2.2.2 LoopBack0
2.2.2.2/32 Direct 0 0 D 127.0.0.1 LoopBack0
3.3.3.0/24 Static 60 0 RD 23.0.0.3 GigabitEthernet
0/0/2
Static 60 0 RD 12.0.0.1 GigabitEthernet '备用路由'
0/0/0
12.0.0.0/24 Direct 0 0 D 12.0.0.2 GigabitEthernet
0/0/0
12.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/0
23.0.0.0/24 Direct 0 0 D 23.0.0.2 GigabitEthernet
0/0/2
23.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2
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
R3
[R3]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 12 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
Static 60 0 RD 23.0.0.2 GigabitEthernet '备用路由'
0/0/2
2.2.2.0/24 Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
Static 60 0 RD 13.0.0.1 GigabitEthernet '备用路由'
0/0/1
3.3.3.0/24 Direct 0 0 D 3.3.3.3 LoopBack0
3.3.3.3/32 Direct 0 0 D 127.0.0.1 LoopBack0
4.4.4.0/24 Direct 0 0 D 4.4.4.4 LoopBack1
4.4.4.4/32 Direct 0 0 D 127.0.0.1 LoopBack1
13.0.0.0/24 Direct 0 0 D 13.0.0.3 GigabitEthernet
0/0/1
13.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
23.0.0.0/24 Direct 0 0 D 23.0.0.3 GigabitEthernet
0/0/2
23.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2
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
```shell
能够发现各少了一个网段，可是并不影响loop间的互联互通
能够断掉一条链路，去测试备用链路
断掉R1的g0/0/1
```shell
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]shutdown
再次ping一波
[R1]ping -a 1.1.1.1 2.2.2.2
PING 2.2.2.2: 56 data bytes, press CTRL_C to break
Reply from 2.2.2.2: bytes=56 Sequence=1 ttl=254 time=80 ms
Reply from 2.2.2.2: bytes=56 Sequence=2 ttl=254 time=60 ms
Reply from 2.2.2.2: bytes=56 Sequence=3 ttl=254 time=80 ms
Reply from 2.2.2.2: bytes=56 Sequence=4 ttl=254 time=60 ms
Reply from 2.2.2.2: bytes=56 Sequence=5 ttl=254 time=60 ms
--- 2.2.2.2 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 60/68/80 ms
[R1]ping -a 1.1.1.1 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=255 time=10 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=255 time=30 ms
--- 3.3.3.3 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 10/36/50 ms
[R2]ping -a 2.2.2.2 3.3.3.3
PING 3.3.3.3: 56 data bytes, press CTRL_C to break
Reply from 3.3.3.3: bytes=56 Sequence=1 ttl=255 time=20 ms
Reply from 3.3.3.3: bytes=56 Sequence=2 ttl=255 time=10 ms
Reply from 3.3.3.3: bytes=56 Sequence=3 ttl=255 time=50 ms
Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=255 time=40 ms
Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=255 time=50 ms
--- 3.3.3.3 ping statistics ---
5 packet(s) transmitted
5 packet(s) received
0.00% packet loss
round-trip min/avg/max = 10/34/50 ms
并不影响
再次查看路由表
R1
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Direct 0 0 D 1.1.1.1 LoopBack0
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.0/24 Static 60 0 RD 13.0.0.3 GigabitEthernet '备用路由'
0/0/1
3.3.3.0/24 Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
13.0.0.0/24 Direct 0 0 D 13.0.0.1 GigabitEthernet
0/0/1
13.0.0.1/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
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
R2
[R2]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 8 Routes : 8
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Static 60 0 RD 23.0.0.3 GigabitEthernet '备用路由'
0/0/2
2.2.2.0/24 Direct 0 0 D 2.2.2.2 LoopBack0
2.2.2.2/32 Direct 0 0 D 127.0.0.1 LoopBack0
3.3.3.0/24 Static 60 0 RD 23.0.0.3 GigabitEthernet
0/0/2
23.0.0.0/24 Direct 0 0 D 23.0.0.2 GigabitEthernet
0/0/2
23.0.0.2/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2
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
R3
[R3]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 12 Routes : 14
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.0/24 Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
2.2.2.0/24 Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
3.3.3.0/24 Direct 0 0 D 3.3.3.3 LoopBack0
3.3.3.3/32 Direct 0 0 D 127.0.0.1 LoopBack0
4.4.4.0/24 Direct 0 0 D 4.4.4.4 LoopBack1
4.4.4.4/32 Direct 0 0 D 127.0.0.1 LoopBack1
13.0.0.0/24 Direct 0 0 D 13.0.0.3 GigabitEthernet
0/0/1
13.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/1
23.0.0.0/24 Direct 0 0 D 23.0.0.3 GigabitEthernet
0/0/2
23.0.0.3/32 Direct 0 0 D 127.0.0.1 GigabitEthernet
0/0/2
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
跟12.0.0.0相关的都改用了备用链路，再次印证了以前说的一个原理
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