拓扑图如下：
（1）R1的配置
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sysname R1
Oct 22 2019 17:37:56-08:00 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 1, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R1]int g0/0/0
[R1-GigabitEthernet0/0/0]ip add 12.0.0.1 24
Oct 22 2019 17:38:21-08:00 R1 %%01IFNET/4/LINK_STATE(l)[2]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R1-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R1-GigabitEthernet0/0/0]
Oct 22 2019 17:38:26-08:00 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 2, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R1-GigabitEthernet0/0/0]int g0/0/1
[R1-GigabitEthernet0/0/1]ip add 13.0.0.1 24
Oct 22 2019 17:38:48-08:00 R1 %%01IFNET/4/LINK_STATE(l)[3]:The line protocol IP
on the interface GigabitEthernet0/0/1 has entered the UP state.
[R1-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R1-GigabitEthernet0/0/1]
Oct 22 2019 17:38:56-08:00 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 3, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R1-GigabitEthernet0/0/1]int loo 0
Oct 22 2019 17:39:06-08:00 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 4, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R1-LoopBack0]ip add 1.1.1.1 32
[R1-LoopBack0]q
Oct 22 2019 17:39:26-08:00 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.
[R1]dis ip int b
*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
GigabitEthernet0/0/1 13.0.0.1/24 up up
GigabitEthernet0/0/2 unassigned down down
GigabitEthernet0/0/3 unassigned down down
LoopBack0 1.1.1.1/32 up up(s)
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
[R1] User interface con0 is availabl
[R1]ip route-static 3.3.3.3 32 13.0.0.3
[R1]ip route-static 3.3.3.3 32 12.0.0.2
[R1]ip route-static 2.2.2.2 32 13.0.0.3
[R1]ip route-static 2.2.2.2 32 12.0.0.2
[R1]ip route-static 23.0.0.0 24 13.0.0.3
[R1]ip route-static 23.0.0.0 24 12.0.0.2
[R1]
Oct 22 2019 18:32:59-08:00 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 11, the c
hange loop count is 0, and the maximum number of records is 4095.
[R1] User interface con0 is available
[R1]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 13
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 Direct 0 0 D 127.0.0.1 LoopBack0
2.2.2.2/32 Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
Static 60 0 RD 12.0.0.2 GigabitEthernet
0/0/0
3.3.3.3/32 Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
Static 60 0 RD 12.0.0.2 GigabitEthernet
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
23.0.0.0/24 Static 60 0 RD 13.0.0.3 GigabitEthernet
0/0/1
Static 60 0 RD 12.0.0.2 GigabitEthernet
0/0/0
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
[R1]
（2）R2的配置
<Huawei>sys
Enter system view, return user view with Ctrl+Z.
[Huawei]sys
[Huawei]sysname R2
[R2]
[R2]int g
Oct 22 2019 17:39:56-08:00 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
[R2]int g0/0/0
[R2-GigabitEthernet0/0/0]ip add 12.0.0.2 24
[R2-GigabitEthernet0/0/0]
Oct 22 2019 17:40:32-08:00 R2 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/0 has entered the UP state.
[R2-GigabitEthernet0/0/0]un sh
Info: Interface GigabitEthernet0/0/0 is not shutdown.
[R2-GigabitEthernet0/0/0]
Oct 22 2019 17:40:36-08:00 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 2, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R2-GigabitEthernet0/0/0]int g0/0/2
[R2-GigabitEthernet0/0/2]ip add 23.0.0.2 24
[R2-GigabitEthernet0/0/2]
Oct 22 2019 17:40:54-08:00 R2 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP
on the interface GigabitEthernet0/0/2 has entered the UP state.
[R2-GigabitEthernet0/0/2]u
Oct 22 2019 17:40:56-08:00 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 3, the ch
ange loop count is 0, and the maximum number of records is 4095.n sh
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[R2-GigabitEthernet0/0/2]
[R2-GigabitEthernet0/0/2]int loo 0
[R2-LoopBack0]ip
Oct 22 2019 17:41:06-08:00 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 4, the ch
ange loop count is 0, and the maximum number of records is 4095.
^
Error:Incomplete command found at '^' position.
[R2-LoopBack0]ip add 2.2.2.2 32
[R2-LoopBack0]q
[R2]dis ip int b
*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
GigabitEthernet0/0/1 unassigned down down
GigabitEthernet0/0/2 23.0.0.2/24 up up
GigabitEthernet0/0/3 unassigned down down
LoopBack0 2.2.2.2/32 up up(s)
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]
Oct 22 2019 17:41:26-08:00 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 5, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R2]
[R2]ip route-static 1.1.1.1 32 12.0.0.1
[R2]ip route-static 1.1.1.1 32 23.0.0.3
[R2]ip route-static 3.3.3.3 32 12.0.0.1
[R2]ip route-static 3.3.3.3 32 23.0.0.3
[R2]ip route-static 13.0.0.0 24 23.0.0.3
[R2]ip route-static 13.0.0.0 24 12.0.0.1
[R2]
Oct 22 2019 18:33:18-08:00 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 11, the c
hange loop count is 0, and the maximum number of records is 4095.
[R2]
[R2] User interface con0 is available
[R2]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 10 Routes : 13
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 Static 60 0 RD 12.0.0.1 GigabitEthernet
0/0/0
Static 60 0 RD 23.0.0.3 GigabitEthernet
0/0/2
2.2.2.2/32 Direct 0 0 D 127.0.0.1 LoopBack0
3.3.3.3/32 Static 60 0 RD 12.0.0.1 GigabitEthernet
0/0/0
Static 60 0 RD 23.0.0.3 GigabitEthernet
0/0/2
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
13.0.0.0/24 Static 60 0 RD 23.0.0.3 GigabitEthernet
0/0/2
Static 60 0 RD 12.0.0.1 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
[R2]
（3）R3的配置
<R3>sys
Enter system view, return user view with Ctrl+Z.
[R3]int g0/0/1
[R3-GigabitEthernet0/0/1]ip add 13.0.0.3 24
[R3-GigabitEthernet0/0/1]
Oct 22 2019 18:31:33-08:00 R3 %%01IFNET/4/LINK_STATE(l)[0]:The line protocol IP
on the interface GigabitEthernet0/0/1 has entered the UP state.
[R3-GigabitEthernet0/0/1]un sh
Info: Interface GigabitEthernet0/0/1 is not shutdown.
[R3-GigabitEthernet0/0/1]
[R3-GigabitEthernet0/0/1]
Oct 22 2019 18:31:39-08:00 R3 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 2, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R3-GigabitEthernet0/0/1]int g0/0/2
[R3-GigabitEthernet0/0/2]ip add 23.0.0.3 24
[R3-GigabitEthernet0/0/2]
Oct 22 2019 18:31:55-08:00 R3 %%01IFNET/4/LINK_STATE(l)[1]:The line protocol IP
on the interface GigabitEthernet0/0/2 has entered the UP state.
Oct 22 2019 18:31:59-08:00 R3 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 3, the ch
ange loop count is 0, and the maximum number of records is 4095.
[R3-GigabitEthernet0/0/2]un sh
Info: Interface GigabitEthernet0/0/2 is not shutdown.
[R3-GigabitEthernet0/0/2]
[R3-GigabitEthernet0/0/2]
[R3-GigabitEthernet0/0/2]q
[R3]dis ip int b
*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 3
The number of interface that is DOWN in Physical is 8
The number of interface that is UP in Protocol is 3
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
GigabitEthernet0/0/2 23.0.0.3/24 up up
GigabitEthernet0/0/3 unassigned down down
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
[R3]
[R3]ip route-static 1.1.1.1 32 13.0.0.1
[R3]ip route-static 1.1.1.1 32 23.0.0.2
[R3]ip route-static 2.2.2.2 32 13.0.0.1
[R3]ip route-static 2.2.2.2 32 23.0.0.2
[R3]ip route-static 12.0.0.0 24 23.0.0.2
[R3]ip route-static 12.0.0.0 24 13.0.0.1
[R3]dis ip routing-table
Route Flags: R - relay, D - download to fib
------------------------------------------------------------------------------
Routing Tables: Public
Destinations : 9 Routes : 12
Destination/Mask Proto Pre Cost Flags NextHop Interface
1.1.1.1/32 Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
2.2.2.2/32 Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
12.0.0.0/24 Static 60 0 RD 23.0.0.2 GigabitEthernet
0/0/2
Static 60 0 RD 13.0.0.1 GigabitEthernet
0/0/1
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
[R3]