• 静态路由，PC1与PC2之间的通信使用AR1-AR2-AR3链路。
  • 浮动静态路由，PC1与PC2之间的通信使用主链路AR1-AR2-AR3，备用链路AR1-AR4-AR3。
  • 静态路由负载分担，使用两台路径实现PC1与PC2之间的通信。
  • 默认路由。

静态路由，PC1与PC2之间的通信使用AR1-AR2-AR3链路

AR1 的初始配置

The device is running!<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname AR1
[AR1]interface G
[AR1]interface GigabitEthernet 0/0/0
[AR1-GigabitEthernet0/0/0]ip addr 172.16.10.1 24
Sep 18 2022 13:41:51-08:00 AR1 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state.
[AR1-GigabitEthernet0/0/0]q
[AR1]interface G
[AR1]interface GigabitEthernet 0/0/1
[AR1-GigabitEthernet0/0/1]ip addr 10.10.14.1 24
Sep 18 2022 13:42:25-08:00 AR1 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state.
[AR1-GigabitEthernet0/0/1]q
[AR1]interface G
[AR1]interface GigabitEthernet 0/0/2
[AR1-GigabitEthernet0/0/2]ip addr 10.10.12.1 24
[AR1-GigabitEthernet0/0/2]
Sep 18 2022 13:42:49-08:00 AR1 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR1-GigabitEthernet0/0/2]q
[AR1]user-inter
[AR1]user-interface cons
[AR1]user-interface console 0
[AR1-ui-console0]idle-timeout 0 0
[AR1-ui-console0]q
[AR1]

AR2 的初始配置

The device is running!<Huawei>system-view
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname AR2
[AR2]int g0/0/1
[AR2-GigabitEthernet0/0/1]ip addr 10.10.12.2 24
Sep 18 2022 13:56:29-08:00 AR2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state.
[AR2-GigabitEthernet0/0/1]q
[AR2]int g0/0/2
[AR2-GigabitEthernet0/0/2]ip addr 10.10.23.2 24
Sep 18 2022 13:56:59-08:00 AR2 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR2-GigabitEthernet0/0/2]q
[AR2]int cons
[AR2]user-in
[AR2]user-interface conso
[AR2]user-interface console 0
[AR2-ui-console0]idle-timeout 0 0
[AR2-ui-console0]q
[AR2]

AR3 的初始配置

The device is running!<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname AR3
[AR3]int g0/0/0
[AR3-GigabitEthernet0/0/0]ip addr 172.16.30.3 24
Sep 18 2022 13:59:29-08:00 AR3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet0/0/0 has entered the UP state.
[AR3-GigabitEthernet0/0/0]q
[AR3]int g0/0/1
[AR3-GigabitEthernet0/0/1]ip addr 10.10.34.3 24
Sep 18 2022 14:00:52-08:00 AR3 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state.
[AR3-GigabitEthernet0/0/1]q
[AR3]int g0/0/2
[AR3-GigabitEthernet0/0/2]ip addr 10.10.23.3 24
Sep 18 2022 14:01:22-08:00 AR3 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR3-GigabitEthernet0/0/2]1^
Error: Unrecognized command found at '^' position.
[AR3-GigabitEthernet0/0/2]q
[AR3]user-inter
[AR3]user-interface consol
[AR3]user-interface console 0
[AR3-ui-console0]idle-timeout 0 0
[AR3-ui-console0]1^
Error: Unrecognized command found at '^' position.
[AR3-ui-console0]q
[AR3]

AR4 的初始配置

The device is running!<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname AR4
[AR4]int g0/0/1
[AR4-GigabitEthernet0/0/1]ip addr 10.10.14.4 24
Sep 18 2022 14:03:16-08:00 AR4 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IPon the interface GigabitEthernet0/0/1 has entered the UP state.
[AR4-GigabitEthernet0/0/1]q
[AR4]int g0/0/2
[AR4-GigabitEthernet0/0/2]ip addr 10.10.34.4 24
Sep 18 2022 14:03:52-08:00 AR4 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR4-GigabitEthernet0/0/2]q
[AR4]user-inter
[AR4]user-interface consol
[AR4]user-interface console 0
[AR4-ui-console0]idle-timeout 0 0
[AR4-ui-console0]q
[AR4]

查看接口配置：      display ip interface brief

<AR1>display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 0Interface                         IP Address/Mask      Physical   Protocol
GigabitEthernet0/0/0              172.16.10.1/24       up         up
GigabitEthernet0/0/1              10.10.14.1/24        up         up
GigabitEthernet0/0/2              10.10.12.1/24        up         up
NULL0                             unassigned           up         up(s)
<AR1>[AR2]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1Interface                         IP Address/Mask      Physical   Protocol
GigabitEthernet0/0/0              unassigned           down       down
GigabitEthernet0/0/1              10.10.12.2/24        up         up
GigabitEthernet0/0/2              10.10.23.2/24        up         up
NULL0                             unassigned           up         up(s)
[AR2][AR3]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 4
The number of interface that is DOWN in Physical is 0
The number of interface that is UP in Protocol is 4
The number of interface that is DOWN in Protocol is 0Interface                         IP Address/Mask      Physical   Protocol
GigabitEthernet0/0/0              172.16.30.3/24       up         up
GigabitEthernet0/0/1              10.10.34.3/24        up         up
GigabitEthernet0/0/2              10.10.23.3/24        up         up
NULL0                             unassigned           up         up(s)
[AR3][AR4]display ip interface brief
*down: administratively down
^down: standby
(l): loopback
(s): spoofing
The number of interface that is UP in Physical is 3
The number of interface that is DOWN in Physical is 1
The number of interface that is UP in Protocol is 3
The number of interface that is DOWN in Protocol is 1Interface                         IP Address/Mask      Physical   Protocol
GigabitEthernet0/0/0              unassigned           down       down
GigabitEthernet0/0/1              10.10.14.4/24        up         up
GigabitEthernet0/0/2              10.10.34.4/24        up         up
NULL0                             unassigned           up         up(s)
[AR4]

测试直连连通性

<AR1>ping 172.16.10.10PING 172.16.10.10: 56  data bytes, press CTRL_C to breakReply from 172.16.10.10: bytes=56 Sequence=1 ttl=128 time=70 msReply from 172.16.10.10: bytes=56 Sequence=2 ttl=128 time=10 msReply from 172.16.10.10: bytes=56 Sequence=3 ttl=128 time=10 msReply from 172.16.10.10: bytes=56 Sequence=4 ttl=128 time=20 msReply from 172.16.10.10: bytes=56 Sequence=5 ttl=128 time=10 ms--- 172.16.10.10 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/24/70 ms<AR1>ping 10.10.12.2PING 10.10.12.2: 56  data bytes, press CTRL_C to breakReply from 10.10.12.2: bytes=56 Sequence=1 ttl=255 time=70 msReply from 10.10.12.2: bytes=56 Sequence=2 ttl=255 time=20 msReply from 10.10.12.2: bytes=56 Sequence=3 ttl=255 time=10 msReply from 10.10.12.2: bytes=56 Sequence=4 ttl=255 time=10 msReply from 10.10.12.2: bytes=56 Sequence=5 ttl=255 time=10 ms--- 10.10.12.2 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/24/70 ms<AR1>ping 10.10.14.4PING 10.10.14.4: 56  data bytes, press CTRL_C to breakReply from 10.10.14.4: bytes=56 Sequence=1 ttl=255 time=100 msReply from 10.10.14.4: bytes=56 Sequence=2 ttl=255 time=30 msReply from 10.10.14.4: bytes=56 Sequence=3 ttl=255 time=10 msReply from 10.10.14.4: bytes=56 Sequence=4 ttl=255 time=10 msReply from 10.10.14.4: bytes=56 Sequence=5 ttl=255 time=30 ms--- 10.10.14.4 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/36/100 ms<AR1>[AR2]ping 10.10.12.1PING 10.10.12.1: 56  data bytes, press CTRL_C to breakReply from 10.10.12.1: bytes=56 Sequence=1 ttl=255 time=20 msReply from 10.10.12.1: bytes=56 Sequence=2 ttl=255 time=20 msReply from 10.10.12.1: bytes=56 Sequence=3 ttl=255 time=30 msReply from 10.10.12.1: bytes=56 Sequence=4 ttl=255 time=20 msReply from 10.10.12.1: bytes=56 Sequence=5 ttl=255 time=30 ms--- 10.10.12.1 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 20/24/30 ms[AR2]ping 10.10.23.3PING 10.10.23.3: 56  data bytes, press CTRL_C to breakReply from 10.10.23.3: bytes=56 Sequence=1 ttl=255 time=70 msReply from 10.10.23.3: bytes=56 Sequence=2 ttl=255 time=20 msReply from 10.10.23.3: bytes=56 Sequence=3 ttl=255 time=20 msReply from 10.10.23.3: bytes=56 Sequence=4 ttl=255 time=30 msReply from 10.10.23.3: bytes=56 Sequence=5 ttl=255 time=20 ms--- 10.10.23.3 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 20/32/70 ms[AR2][AR3]ping 172.16.30.10PING 172.16.30.10: 56  data bytes, press CTRL_C to breakReply from 172.16.30.10: bytes=56 Sequence=1 ttl=128 time=150 msReply from 172.16.30.10: bytes=56 Sequence=2 ttl=128 time=20 msReply from 172.16.30.10: bytes=56 Sequence=3 ttl=128 time=10 msReply from 172.16.30.10: bytes=56 Sequence=4 ttl=128 time=10 msReply from 172.16.30.10: bytes=56 Sequence=5 ttl=128 time=10 ms--- 172.16.30.10 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/40/150 ms[AR3]ping 10.10.34.4PING 10.10.34.4: 56  data bytes, press CTRL_C to breakReply from 10.10.34.4: bytes=56 Sequence=1 ttl=255 time=40 msReply from 10.10.34.4: bytes=56 Sequence=2 ttl=255 time=10 msReply from 10.10.34.4: bytes=56 Sequence=3 ttl=255 time=20 msReply from 10.10.34.4: bytes=56 Sequence=4 ttl=255 time=20 msReply from 10.10.34.4: bytes=56 Sequence=5 ttl=255 time=20 ms--- 10.10.34.4 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 10/22/40 ms[AR3]ping 10.10.23.2PING 10.10.23.2: 56  data bytes, press CTRL_C to breakReply from 10.10.23.2: bytes=56 Sequence=1 ttl=255 time=20 msReply from 10.10.23.2: bytes=56 Sequence=2 ttl=255 time=30 msReply from 10.10.23.2: bytes=56 Sequence=3 ttl=255 time=20 msReply from 10.10.23.2: bytes=56 Sequence=4 ttl=255 time=20 msReply from 10.10.23.2: bytes=56 Sequence=5 ttl=255 time=20 ms--- 10.10.23.2 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 20/22/30 ms[AR3][AR4]ping 10.10.14.1PING 10.10.14.1: 56  data bytes, press CTRL_C to breakReply from 10.10.14.1: bytes=56 Sequence=1 ttl=255 time=40 msReply from 10.10.14.1: bytes=56 Sequence=2 ttl=255 time=30 msReply from 10.10.14.1: bytes=56 Sequence=3 ttl=255 time=20 msReply from 10.10.14.1: bytes=56 Sequence=4 ttl=255 time=20 msReply from 10.10.14.1: bytes=56 Sequence=5 ttl=255 time=30 ms--- 10.10.14.1 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 20/28/40 ms[AR4]ping 10.10.12.2PING 10.10.12.2: 56  data bytes, press CTRL_C to breakRequest time outRequest time outRequest time outRequest time outRequest time out--- 10.10.12.2 ping statistics ---5 packet(s) transmitted0 packet(s) received100.00% packet loss[AR4]ping 10.10.34.3PING 10.10.34.3: 56  data bytes, press CTRL_C to breakReply from 10.10.34.3: bytes=56 Sequence=1 ttl=255 time=20 msReply from 10.10.34.3: bytes=56 Sequence=2 ttl=255 time=30 msReply from 10.10.34.3: bytes=56 Sequence=3 ttl=255 time=20 msReply from 10.10.34.3: bytes=56 Sequence=4 ttl=255 time=20 msReply from 10.10.34.3: bytes=56 Sequence=5 ttl=255 time=20 ms--- 10.10.34.3 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 20/22/30 ms[AR4]

PC1 ping / tracert  PC2

Welcome to use PC Simulator!PC>ping 172.16.30.10Ping 172.16.30.10: 32 data bytes, Press Ctrl_C to break
Request timeout!
Request timeout!
Request timeout!
Request timeout!
Request timeout!--- 172.16.30.10 ping statistics ---5 packet(s) transmitted0 packet(s) received100.00% packet lossPC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1    *  *  *2    *  *  *3    *  *  *4    *  *  *5    *  *  *6    *  *  *7    *  *  *8    *  *  *PC>
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 13       Routes : 13       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]

AR1 添加 静态路由  ]ip route-static 172.16.30.0 24 10.10.12.2

[AR1]ip route-static 172.16.30.0 24 10.10.12.2
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]

AR2 添加静态路由      [AR2]ip route-static 172.16.30.0 24 10.10.23.3

[AR2]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 10       Routes : 10       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.2      GigabitEthernet
0/0/110.10.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.23.0/24  Direct  0    0           D   10.10.23.2      GigabitEthernet
0/0/210.10.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR2]ip rout
[AR2]ip route
[AR2]ip route-static 172.16.30.0 24 10.10.23.3
[AR2]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.2      GigabitEthernet
0/0/110.10.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.23.0/24  Direct  0    0           D   10.10.23.2      GigabitEthernet
0/0/210.10.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.30.0/24  Static  60   0          RD   10.10.23.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR2]

PC1 ping PC2， 对AR3 g0/0/0 抓包可以发现 Echo（ping）Request和Reply

PC1 ping PC2， 对AR3 g0/0/2 抓包可以发现 Echo（ping）Request但没有Reply

AR3 添加静态路由     [AR3]ip route-static 172.16.10.0 24 10.10.23.2

[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 13       Routes : 13       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]ip route-static 172.16.10.0 24 10.10.23.2
[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]

AR2 添加静态路由。   [AR2]ip route-static 172.16.10.0 24 10.10.12.1

[AR2]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.2      GigabitEthernet
0/0/110.10.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.23.0/24  Direct  0    0           D   10.10.23.2      GigabitEthernet
0/0/210.10.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.30.0/24  Static  60   0          RD   10.10.23.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR2]ip route-static 172.16.10.0 24 10.10.12.1
[AR2]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 12       Routes : 12       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.2      GigabitEthernet
0/0/110.10.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.23.0/24  Direct  0    0           D   10.10.23.2      GigabitEthernet
0/0/210.10.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.12.1      GigabitEthernet
0/0/1172.16.30.0/24  Static  60   0          RD   10.10.23.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR2]

PC1 ping tracert PC2

PC>ping 172.16.30.10Ping 172.16.30.10: 32 data bytes, Press Ctrl_C to break
Request timeout!
From 172.16.30.10: bytes=32 seq=2 ttl=125 time=31 ms
From 172.16.30.10: bytes=32 seq=3 ttl=125 time=16 ms
From 172.16.30.10: bytes=32 seq=4 ttl=125 time=31 ms
From 172.16.30.10: bytes=32 seq=5 ttl=125 time=16 ms--- 172.16.30.10 ping statistics ---5 packet(s) transmitted4 packet(s) received20.00% packet lossround-trip min/avg/max = 0/23/31 msPC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  16 ms  <1 ms2  10.10.12.2   31 ms  <1 ms  16 ms3  10.10.23.3   15 ms  32 ms  15 ms4  172.16.30.10   16 ms  15 ms  32 msPC>

AR1 浮动路由设置    [AR1]ip route-static 172.16.30.0 24 10.10.14.4 preference 65

[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]ip route-static 172.16.30.0 24 10.10.14.4 preference 65
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]int g0/0/2
[AR1-GigabitEthernet0/0/2]shutdown
Sep 18 2022 17:33:58-08:00 AR1 %%01IFPDT/4/IF_STATE(l)[3]:Interface GigabitEther
net0/0/2 has turned into DOWN state.
[AR1-GigabitEthernet0/0/2]
[AR1-GigabitEthernet0/0/2]
Sep 18 2022 17:33:58-08:00 AR1 %%01IFNET/4/LINK_STATE(l)[4]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the DOWN state.
[AR1-GigabitEthernet0/0/2]q
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  65   0          RD   10.10.14.4      GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]

R4 配置静态路由

[AR4]ip route-static 172.16.10.0 24 10.10.14.1
[AR4]ip route-static 172.16.30.0 24 10.10.34.3

[AR4]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 10       Routes : 10       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.14.0/24  Direct  0    0           D   10.10.14.4      GigabitEthernet
0/0/110.10.14.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.0/24  Direct  0    0           D   10.10.34.4      GigabitEthernet
0/0/210.10.34.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR4]ip route-static 172.16.10.0 24 10.10.14.1
[AR4]ip route-static 172.16.30.0 24 10.10.34.3
[AR4]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 12       Routes : 12       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.14.0/24  Direct  0    0           D   10.10.14.4      GigabitEthernet
0/0/110.10.14.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.0/24  Direct  0    0           D   10.10.34.4      GigabitEthernet
0/0/210.10.34.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.14.1      GigabitEthernet
0/0/1172.16.30.0/24  Static  60   0          RD   10.10.34.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR4]

R3 配置浮动静态路由

[AR3]ip route-static 172.16.10.0 24 10.10.34.4 preference 65

[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]ip route-static 172.16.10.0 24 10.10.34.4 preference 65
[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]display ip routing-table protocol static
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : StaticDestinations : 1        Routes : 2        Configured Routes : 2Static routing table status : <Active>Destinations : 1        Routes : 1Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2Static routing table status : <Inactive>Destinations : 1        Routes : 1Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface172.16.10.0/24  Static  65   0          R    10.10.34.4      GigabitEthernet
0/0/1[AR3]int g0/0/2
[AR3-GigabitEthernet0/0/2]shutdown
Sep 18 2022 18:27:16-08:00 AR3 %%01IFPDT/4/IF_STATE(l)[3]:Interface GigabitEther
net0/0/2 has turned into DOWN state.
[AR3-GigabitEthernet0/0/2]
Sep 18 2022 18:27:16-08:00 AR3 %%01IFNET/4/LINK_STATE(l)[4]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the DOWN state.
[AR3-GigabitEthernet0/0/2]q
[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  65   0          RD   10.10.34.4      GigabitEthernet
0/0/1172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]

PC1 ping tracert PC2，浮动路由

PC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  16 ms  <1 ms2  10.10.12.2   31 ms  <1 ms  16 ms3  10.10.23.3   15 ms  32 ms  15 ms4  172.16.30.10   16 ms  15 ms  32 msPC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  15 ms  16 ms2  10.10.14.4   16 ms  15 ms  31 ms3  10.10.34.3   16 ms  31 ms  16 ms4    *172.16.30.10   31 ms  16 msPC>ping 172.16.30.10Ping 172.16.30.10: 32 data bytes, Press Ctrl_C to break
From 172.16.30.10: bytes=32 seq=1 ttl=125 time=16 ms
From 172.16.30.10: bytes=32 seq=2 ttl=125 time=31 ms
From 172.16.30.10: bytes=32 seq=3 ttl=125 time=16 ms
From 172.16.30.10: bytes=32 seq=4 ttl=125 time=31 ms
From 172.16.30.10: bytes=32 seq=5 ttl=125 time=16 ms--- 172.16.30.10 ping statistics ---5 packet(s) transmitted5 packet(s) received0.00% packet lossround-trip min/avg/max = 16/22/31 msPC>

重新打开AR1的G0/0/2接口，查看路由表。

路由表的浮动路由65下去，静态路由60上来

[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  65   0          RD   10.10.14.4      GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]int g0/0/2
[AR1-GigabitEthernet0/0/2]undo shutdown
[AR1-GigabitEthernet0/0/2]q
[AR1]undo shutdown
Sep 18 2022 18:40:21-08:00 AR1 %%01IFPDT/4/IF_STATE(l)[5]:Interface GigabitEther
net0/0/2 has turned into UP state.
[AR1]undo shutdown
Sep 18 2022 18:40:21-08:00 AR1 %%01IFNET/4/LINK_STATE(l)[6]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1]

AR3  开启G0/0/2接口，查看路由表。

路由表的浮动路由65下去，静态路由60上来

[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 11       Routes : 11       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  65   0          RD   10.10.34.4      GigabitEthernet
0/0/1172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]int g0/0/2
[AR3-GigabitEthernet0/0/2]undo shutdown
[AR3-GigabitEthernet0/0/2]
Sep 18 2022 18:43:33-08:00 AR3 %%01IFPDT/4/IF_STATE(l)[5]:Interface GigabitEther
net0/0/2 has turned into UP state.
[AR3-GigabitEthernet0/0/2]
Sep 18 2022 18:43:33-08:00 AR3 %%01IFNET/4/LINK_STATE(l)[6]:The line protocol IPon the interface GigabitEthernet0/0/2 has entered the UP state.
[AR3-GigabitEthernet0/0/2]q
[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 14       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3]

PC1 ping tracert PC2

#  浮动静态路由
PC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  15 ms  16 ms2  10.10.14.4   16 ms  15 ms  31 ms3  10.10.34.3   16 ms  31 ms  16 ms4    *172.16.30.10   31 ms  16 ms# 静态路由
PC>ping 172.16.30.10Ping 172.16.30.10: 32 data bytes, Press Ctrl_C to break
Request timeout!
Request timeout!
Request timeout!
From 172.16.30.10: bytes=32 seq=4 ttl=125 time=15 ms
From 172.16.30.10: bytes=32 seq=5 ttl=125 time=32 ms--- 172.16.30.10 ping statistics ---5 packet(s) transmitted2 packet(s) received60.00% packet lossround-trip min/avg/max = 0/23/32 msPC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  15 ms  16 ms2  10.10.12.2   <1 ms  15 ms  32 ms3  10.10.23.3   15 ms  16 ms  16 ms4  172.16.30.10   31 ms  15 ms  16 msPC>

静态路由负载分担

[AR1]undo ip route-static 172.16.30.0 24 10.10.14.4 preference 65
[AR1]ip route-static 172.16.30.0 24 10.10.14.4
[AR1]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.0/24  Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2Static  60   0          RD   10.10.14.4      GigabitEthernet
0/0/1
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR1][AR2]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 12       Routes : 12       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.2      GigabitEthernet
0/0/110.10.12.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.23.0/24  Direct  0    0           D   10.10.23.2      GigabitEthernet
0/0/210.10.23.2/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.12.1      GigabitEthernet
0/0/1172.16.30.0/24  Static  60   0          RD   10.10.23.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR2][AR3]undo ip route-static 172.16.10.0 24 10.10.34.4 preference 65
[AR3]ip route-static 172.16.10.0 24 10.10.34.4
[AR3]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 14       Routes : 15       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2Static  60   0          RD   10.10.34.4      GigabitEthernet
0/0/1172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR3][AR4]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 12       Routes : 12       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.14.0/24  Direct  0    0           D   10.10.14.4      GigabitEthernet
0/0/110.10.14.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.0/24  Direct  0    0           D   10.10.34.4      GigabitEthernet
0/0/210.10.34.4/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/2127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Static  60   0          RD   10.10.14.1      GigabitEthernet
0/0/1172.16.30.0/24  Static  60   0          RD   10.10.34.3      GigabitEthernet
0/0/2
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[AR4]

PC1 tracert PC2，分别关闭R2，R4


PC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   <1 ms  16 ms  16 ms2    *  *10.10.12.2   15 ms3  10.10.23.3   31 ms  32 ms  31 ms4  172.16.30.10   16 ms  31 ms  15 msPC>tracert 172.16.30.10traceroute to 172.16.30.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.10.1   16 ms  16 ms  <1 ms2    *10.10.14.4   47 ms  <1 ms3    *10.10.34.3   31 ms  15 ms4    *172.16.30.10   16 ms  31 msPC>

书上的结果，PC1去PC2是AR1-AR2-AR3和AR1-AR4-AR3交替进行

AR1 和 AR3 取消静态路由，配置默认路由。

AR1-AR2-AR3

<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]undo ip route-static 172.16.30.0 24
[Huawei]display ip rout
[Huawei]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 13       Routes : 13       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.12.0/24  Direct  0    0           D   10.10.12.1      GigabitEthernet
0/0/210.10.12.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.12.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.14.0/24  Direct  0    0           D   10.10.14.1      GigabitEthernet
0/0/110.10.14.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.14.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.10.0/24  Direct  0    0           D   172.16.10.1     GigabitEthernet
0/0/0172.16.10.1/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.10.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[Huawei]ip route-static 0.0.0.0 0 10.10.12.2
[Huawei]display ip routing-table pr
[Huawei]display ip routing-table protocol s
[Huawei]display ip routing-table protocol static
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : StaticDestinations : 1        Routes : 1        Configured Routes : 1Static routing table status : <Active>Destinations : 1        Routes : 1Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2Static routing table status : <Inactive>Destinations : 0        Routes : 0[Huawei]<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]undo ip route-sta
[Huawei]undo ip route-static 172.16.10.0 24
[Huawei]displ
[Huawei]display ip r
[Huawei]display ip rd-filter
[Huawei]display ip rout
[Huawei]display ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: PublicDestinations : 13       Routes : 13       Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface10.10.23.0/24  Direct  0    0           D   10.10.23.3      GigabitEthernet
0/0/210.10.23.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.23.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/210.10.34.0/24  Direct  0    0           D   10.10.34.3      GigabitEthernet
0/0/110.10.34.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/110.10.34.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/1127.0.0.0/8   Direct  0    0           D   127.0.0.1       InLoopBack0127.0.0.1/32  Direct  0    0           D   127.0.0.1       InLoopBack0
127.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0172.16.30.0/24  Direct  0    0           D   172.16.30.3     GigabitEthernet
0/0/0172.16.30.3/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0172.16.30.255/32  Direct  0    0           D   127.0.0.1       GigabitEthernet
0/0/0
255.255.255.255/32  Direct  0    0           D   127.0.0.1       InLoopBack0[Huawei]display ip routing-table pro
[Huawei]display ip routing-table protocol static
[Huawei]ip route-stat
[Huawei]ip route-static 0.0.0.0 0 10.10.23.2
[Huawei]

AR1-AR4-AR3

# AR1
[Huawei]ip route-static 0.0.0.0 0 10.10.14.4
[Huawei]display ip routing-table protocol static
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : StaticDestinations : 1        Routes : 2        Configured Routes : 2Static routing table status : <Active>Destinations : 1        Routes : 2Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   10.10.12.2      GigabitEthernet
0/0/2Static  60   0          RD   10.10.14.4      GigabitEthernet
0/0/1Static routing table status : <Inactive>Destinations : 0        Routes : 0[Huawei]# AR3[Huawei]ip route-static 0.0.0.0 0 10.10.34.4
[Huawei]display ip routing-able protocol static^
Error: Unrecognized command found at '^' position.
[Huawei]display ip routing-table protocol static
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Public routing table : StaticDestinations : 1        Routes : 2        Configured Routes : 2Static routing table status : <Active>Destinations : 1        Routes : 2Destination/Mask    Proto   Pre  Cost      Flags NextHop         Interface0.0.0.0/0   Static  60   0          RD   10.10.23.2      GigabitEthernet
0/0/2Static  60   0          RD   10.10.34.4      GigabitEthernet
0/0/1Static routing table status : <Inactive>Destinations : 0        Routes : 0[Huawei]

PC2 tracert PC1


# AR2 AR4 都开着
PC>tracert 172.16.10.10traceroute to 172.16.10.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.30.3   31 ms  <1 ms  16 ms2  10.10.23.2   31 ms  31 ms  16 ms3  10.10.12.1   31 ms  16 ms  31 ms4  172.16.10.10   16 ms  31 ms  16 ms# 关闭AR2PC>tracert 172.16.10.10traceroute to 172.16.10.10, 8 hops max
(ICMP), press Ctrl+C to stop1  172.16.30.3   16 ms  <1 ms  16 ms2  10.10.34.4   15 ms  16 ms  15 ms3  10.10.14.1   16 ms  31 ms  16 ms4    *172.16.10.10   31 ms  31 msPC>

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