华为Ensp，VRRP与BFD联动

构建实验拓扑

R1

[Huawei]int g0/0/0

[Huawei-GigabitEthernet0/0/0]ip add 2.1.1.2 24

[Huawei-GigabitEthernet0/0/0]int g0/0/1

[Huawei-GigabitEthernet0/0/1]ip add 1.1.1.10 24

[Huawei-GigabitEthernet0/0/1]q

[Huawei]int g0/0/1

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 virtual-ip 1.1.1.100          //设置编号为1的VRRP组虚拟IP为1.100

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 priority 120

     //优先级为120

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 preempt-mode timer delay 20           //占先的延迟为20秒

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 track interface g0/0/0         //端口追踪

[Huawei-GigabitEthernet0/0/1]q

[Huawei]bfd         //全局开启BFD联动

[Huawei-bfd]q

[Huawei]bfd 1 bind peer-ip 1.1.1.20

[Huawei-bfd-session-1]discriminator local 1

[Huawei-bfd-session-1]discriminator remote 2

[Huawei-bfd-session-1]commit

[Huawei-bfd-session-1]q

display vrrp brief

Total:1     Master:1     Backup:0     Non-active:0     

VRID  State        Interface                Type     Virtual IP    

----------------------------------------------------------------

1     Master       GE0/0/1                  Normal   1.1.1.100     

display vrrp

  GigabitEthernet0/0/1 | Virtual Router 1

    State : Master

    Virtual IP : 1.1.1.100

    Master IP : 1.1.1.10

    PriorityRun : 120

    PriorityConfig : 120

    MasterPriority : 120

    Preempt : YES   Delay Time : 20 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-0101

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Track IF : GigabitEthernet0/0/0   Priority reduced : 10

    IF state : UP

    Create time : 2021-12-22 11:58:02 UTC-08:00

    Last change time : 2021-12-22 11:58:06 UTC-08:00

[Huawei]int g0/0/

[Huawei-GigabitEthernet0/0/1]shutdown     //模拟断开

R2

[Huawei]int g0/0/0

[Huawei-GigabitEthernet0/0/0]ip add 3.1.1.2 24

[Huawei-GigabitEthernet0/0/0]int g0/0/1

[Huawei-GigabitEthernet0/0/1]ip add 1.1.1.20 24

[Huawei-GigabitEthernet0/0/1]q

[Huawei]int g0/0/1

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 virtual-ip 1.1.1.100

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 preempt-mode timer delay 0

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 track interface g0/0/0

[Huawei-GigabitEthernet0/0/1]q

[Huawei]bfd

[Huawei-bfd]q

[Huawei]bfd 2 bind peer-ip 1.1.1.10

[Huawei-bfd-session-2]discriminator local 2

[Huawei-bfd-session-2]discriminator remote 1

[Huawei-bfd-session-2]commit

[Huawei-bfd-session-2]q

[Huawei]int g0/0/1

[Huawei-GigabitEthernet0/0/1]vrrp vrid 1 track bfd session 2 increased 30

[Huawei-GigabitEthernet0/0/1]q

[Huawei]display bfd session all

--------------------------------------------------------------------------------

Local Remote     PeerIpAddr      State     Type        InterfaceName           

--------------------------------------------------------------------------------

2     1          1.1.1.10        Up        S_IP_PEER         -                 

--------------------------------------------------------------------------------

     Total UP/DOWN Session Number : 1/0

 [Huawei]display vrrp

  GigabitEthernet0/0/1 | Virtual Router 1

    State : Backup

    Virtual IP : 1.1.1.100

    Master IP : 1.1.1.10

    PriorityRun : 100

    PriorityConfig : 100

    MasterPriority : 120

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-0101

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Track IF : GigabitEthernet0/0/0   Priority reduced : 10

    IF state : UP

    Track BFD : 2  Priority increased : 30

    BFD-session state : UP

    Create time : 2021-12-22 12:00:05 UTC-08:00

    Last change time : 2021-12-22 12:00:05 UTC-08:00

[Huawei]display vrrp brief

Total:1     Master:0     Backup:1     Non-active:0     

VRID  State        Interface                Type     Virtual IP    

----------------------------------------------------------------

1     Backup       GE0/0/1                  Normal   1.1.1.100     

[Huawei]q

display vrrp       //查看BFD应用成功

  GigabitEthernet0/0/1 | Virtual Router 1

    State : Master

    Virtual IP : 1.1.1.100

    Master IP : 1.1.1.20

    PriorityRun : 130

    PriorityConfig : 100

    MasterPriority : 130

    Preempt : YES   Delay Time : 0 s

    TimerRun : 1 s

    TimerConfig : 1 s

    Auth type : NONE

    Virtual MAC : 0000-5e00-0101

    Check TTL : YES

    Config type : normal-vrrp

    Backup-forward : disabled

    Track IF : GigabitEthernet0/0/0   Priority reduced : 10

    IF state : UP

    Track BFD : 2  Priority increased : 30

    BFD-session state : DOWN

    Create time : 2021-12-22 12:00:05 UTC-08:00

    Last change time : 2021-12-22 12:09:50 UTC-08:00