静态路由

华为不同路由的优先级

路由的优先级越小越优先。

浮动路由

AR1配置

interface GigabitEthernet0/0/0
 ip address 12.12.12.1 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 13.13.13.1 255.255.255.0 
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
 ip address 1.1.1.1 255.255.255.255 
#
ip route-static 3.3.3.3 255.255.255.255 13.13.13.3
ip route-static 3.3.3.3 255.255.255.255 12.12.12.2 preference 80
ip route-static 23.23.23.0 255.255.255.0 13.13.13.3
ip route-static 23.23.23.0 255.255.255.0 12.12.12.2 preference 80

AR2配置

interface GigabitEthernet0/0/0
 ip address 12.12.12.2 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 23.23.23.2 255.255.255.0 
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
 ip address 2.2.2.2 255.255.255.255 
#
ip route-static 3.3.3.3 255.255.255.255 23.23.23.3
#

AR3配置

interface GigabitEthernet0/0/0
 ip address 23.23.23.3 255.255.255.0 
#
interface GigabitEthernet0/0/1
 ip address 13.13.13.3 255.255.255.0 
#
interface GigabitEthernet0/0/2
#
interface NULL0
#
interface LoopBack0
 ip address 3.3.3.3 255.255.255.255 
#
ip route-static 12.12.12.0 255.255.255.0 23.23.23.2
#

[Huawei]ping 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=50 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=30 ms
    Reply from 3.3.3.3: bytes=56 Sequence=4 ttl=255 time=20 ms
    Reply from 3.3.3.3: bytes=56 Sequence=5 ttl=255 time=10 ms

  --- 3.3.3.3 ping statistics ---
    5 packet(s) transmitted
    5 packet(s) received
    0.00% packet loss
    round-trip min/avg/max = 10/24/50 ms

[Huawei]tra    
[Huawei]tracert 3.3.3.3

 traceroute to  3.3.3.3(3.3.3.3), max hops: 30 ,packet length: 40,press CTRL_C t
o break 

 1 13.13.13.3 20 ms  20 ms  20 ms 
[Huawei]

去往3.3.3.3，是从13.13.13.3过去的。

关闭AR3的G0/0/1口

[Huawei]interface GigabitEthernet 0/0/1
[Huawei-GigabitEthernet0/0/1]shutdown 
May 14 2020 17:32:14-08:00 Huawei %%01IFPDT/4/IF_STATE(l)[0]:Interface GigabitEt
hernet0/0/1 has turned into DOWN state.
[Huawei-GigabitEthernet0/0/1]
[Huawei-GigabitEthernet0/0/1]
May 14 2020 17:32:14-08:00 Huawei %%01IFNET/4/LINK_STATE(l)[1]:The line protocol
 IP on the interface GigabitEthernet0/0/1 has entered the DOWN state.

[Huawei]tracert 3.3.3.3

 traceroute to  3.3.3.3(3.3.3.3), max hops: 30 ,packet length: 40,press CTRL_C t
o break 

 1 12.12.12.2 540 ms  20 ms  20 ms 

 2 23.23.23.3 30 ms  30 ms  30 ms 

去往3.3.3.3要先经过AR2。

 。。。。。。。。。。。。。。。。。。。。。。。。。。。。。