7.4 替代方案

1.Smart Link配置

图片[1]-7.4 替代方案-大赛人网
图7-13  Smart Link配置网络拓扑

1)SW1基本配置

[SW1]vlan 10
[SW1]interface GigabitEthernet 0/0/1
[SW1-GigabitEthernet0/0/1]port link-type trunk 
[SW1-GigabitEthernet0/0/1]port trunk allow-pass vlan all 
[SW1-GigabitEthernet0/0/1]undo stp enable

[SW1]interface GigabitEthernet 0/0/2
[SW1-GigabitEthernet0/0/2]port link-type trunk 
[SW1-GigabitEthernet0/0/2]port trunk allow-pass vlan all 
[SW1-GigabitEthernet0/0/2]undo stp enable

[SW1]interface GigabitEthernet 0/0/3
[SW1-GigabitEthernet0/0/3]port link-type access 
[SW1-GigabitEthernet0/0/3]port default vlan 10

2)SW2基本配置

[SW2]vlan 10
[SW2]interface GigabitEthernet 0/0/3
[SW2-GigabitEthernet0/0/3]port link-type trunk 
[SW2-GigabitEthernet0/0/3]port trunk allow-pass vlan all 
[SW2-GigabitEthernet0/0/3]undo stp enable
[SW2]interface GigabitEthernet 0/0/4
[SW2-GigabitEthernet0/0/4]port link-type trunk 
[SW2-GigabitEthernet0/0/4]port trunk allow-pass vlan all 
[SW2-GigabitEthernet0/0/4]undo stp enable

3)SW3基本配置

[SW3]vlan 10
[SW3]interface GigabitEthernet 0/0/5
[SW3-GigabitEthernet0/0/5]port link-type trunk 
[SW3-GigabitEthernet0/0/5]port trunk allow-pass vlan all 
[SW3-GigabitEthernet0/0/5]undo stp enable 
[SW3]interface GigabitEthernet 0/0/6
[SW3-GigabitEthernet0/0/6]port link-type trunk 
[SW3-GigabitEthernet0/0/6]port trunk allow-pass vlan all 
[SW3-GigabitEthernet0/0/6]undo stp enable 

4)SW4基本配置

[SW4]vlan 10
[R4]interface Vlanif 10
[R4-Vlanif10]ip address 192.168.10.254 24

[R4]interface GigabitEthernet 0/0/3
[R4-GigabitEthernet0/0/3]port link-type access 
[R4-GigabitEthernet0/0/3]port default vlan 10

[R4]interface GigabitEthernet 0/0/7
[R4-GigabitEthernet0/0/7]port link-type trunk 
[R4-GigabitEthernet0/0/7]port trunk allow-pass vlan all 
[R4-GigabitEthernet0/0/7]undo stp enable

[R4]interface GigabitEthernet 0/0/8
[R4-GigabitEthernet0/0/8]port link-type trunk 
[R4-GigabitEthernet0/0/8]port trunk allow-pass vlan all 
[R4-GigabitEthernet0/0/8]undo stp enable

5)SW1的Smart Link配置和Flush报文的发送和接收功能

[SW1]smart-link group 1
[SW1-smlk-group1]port GigabitEthernet 0/0/1 master 
[SW1-smlk-group1]port GigabitEthernet 0/0/2 slave 
[SW1-smlk-group1]flush send control-vlan 10

6)SW2的Smart Link配置和Flush报文的发送和接收功能

[SW2]interface GigabitEthernet 0/0/3
[SW2-GigabitEthernet0/0/3]smart-link flush receive control-vlan 10
[SW2]interface GigabitEthernet 0/0/4
[SW2-GigabitEthernet0/0/4]smart-link flush receive control-vlan 10

7)SW3的Smart Link配置和Flush报文的发送和接收功能

[SW3]interface GigabitEthernet 0/0/5
[SW3-GigabitEthernet0/0/5]smart-link flush receive control-vlan 10
[SW3]interface GigabitEthernet 0/0/6
[SW3-GigabitEthernet0/0/6]smart-link flush receive control-vlan 10

8)SW4的Smart Link配置和Flush报文的发送和接收功能

[R4]interface GigabitEthernet 0/0/7
[R4-GigabitEthernet0/0/7]smart-link flush receive control-vlan 10
[R4]interface GigabitEthernet 0/0/8
[R4-GigabitEthernet0/0/8]smart-link flush receive control-vlan 10

9)使能Smart Link回切功能,请在使能Smart Link前配置此功能。

若已经使能了Smart Link,需要去使能Smart Link,才能配置此功能。
[SW1-smlk-group1]restore enable
[SW1-smlk-group1]timer wtr 30

10)使能Smart Link

[SW1-smlk-group1]smart-link enable 

11)查看Smart Link组状态信息

[SW1]display smart-link group 1
Smart Link group 1 information :
  Smart Link group was enabled
  Wtr-time is: 30 sec.
  There is no Load-Balance
  There is no protected-vlan reference-instance
  DeviceID: 4c1f-cc5a-5958  Control-vlan ID: 10
  Member                  Role   State    Flush Count Last-Flush-Time
  GigabitEthernet0/0/1    Master Active   1           2023/01/25 19:09:02 UTC-08:00 
  GigabitEthernet0/0/2    Slave  Inactive 0           0000/00/00 00:00:00 UTC+00:00 

12)SW1的GigabitEthernet0/0/1 shutdown和undo shutdown后,查看接收到的Flush报文信息

[SW1]interface GigabitEthernet 0/0/1
[SW1-GigabitEthernet0/0/1]shutdown 
[SW1]display smart-link grou 1
Smart Link group 1 information :
  Smart Link group was enabled
  Wtr-time is: 30 sec.
  There is no Load-Balance
  There is no protected-vlan reference-instance
  DeviceID: 4c1f-cc5a-5958  Control-vlan ID: 10
  Member                  Role   State    Flush Count Last-Flush-Time
  GigabitEthernet0/0/1    Master Inactive 3           2023/01/25 19:37:45 UTC-08:00 
  GigabitEthernet0/0/2    Slave  Active   0           0000/00/00 00:00:00 UTC+00:00 

[SW1]interface GigabitEthernet 0/0/1
[SW1-GigabitEthernet0/0/1]undo shutdown 

[SW2]display smart-link flush
Receive flush packets count:               4
Receive last flush interface:              GigabitEthernet0/0/3
Receive last flush packet time:            20:04:55 UTC-08:00 2023/01/25
Receive last flush packet source mac:      4c1f-cc5a-5958
Receive last flush packet control vlan ID: 10

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