實(shí)驗(yàn)配置如下：

交換機(jī)SW1的配置如下：

sysname SW1

#

vlan batch 10 20 40

#

stp disable //因?yàn)橛森h(huán)路需關(guān)閉生成樹功能，不然SW2的GE0/0/1將阻塞掉，無法學(xué)習(xí)到192.168.30.0地址

#

bfd //全局模式下開啟bfd

#

interface Vlanif10

ip address 192.168.10.254 255.255.255.0

#

interface Vlanif20

ip address 192.168.20.1 255.255.255.0

#

interface Vlanif40

ip address 192.168.40.1 255.255.255.0

#

interface GigabitEthernet0/0/1

port link-type trunk

port trunk allow-pass vlan 40

#

interface GigabitEthernet0/0/2

port link-type trunk

port trunk allow-pass vlan 20

#

interface GigabitEthernet0/0/3

port link-type access

port default vlan 10

#

bfd sw20 bind peer-ip 192.168.20.2 //進(jìn)入bfd,取名為sw20并綁定對(duì)端交換機(jī)地址

discriminator local 1 //辨別本地標(biāo)識(shí)為1

discriminator remote 2 //辨別遠(yuǎn)端標(biāo)識(shí)為2

commit //提交配置

#

ip route-static 192.168.30.0 255.255.255.0 192.168.20.2 track bfd-session sw20

ip route-static 192.168.30.0 255.255.255.0 192.168.40.2 preference 80

交換機(jī)SW2的配置如下：

sysname SW2

#

vlan batch 20 30 40

#

stp disable //因?yàn)橛森h(huán)路需關(guān)閉生成樹功能，不然SW2的GE0/0/1將阻塞掉，無法學(xué)習(xí)到192.168.10.0地址

#

Bfd //全局模式下開啟bfd

#

interface Vlanif20

ip address 192.168.20.2 255.255.255.0

#

interface Vlanif30

ip address 192.168.30.254 255.255.255.0

#

interface Vlanif40

ip address 192.168.40.2 255.255.255.0

#

interface GigabitEthernet0/0/1

port link-type trunk

port trunk allow-pass vlan 20

#

interface GigabitEthernet0/0/2

port link-type trunk

port trunk allow-pass vlan 40

#

interface GigabitEthernet0/0/3

port link-type access

port default vlan 30

#

bfd sw20 bind peer-ip 192.168.20.1 //進(jìn)入bfd,取名為sw20并綁定對(duì)端交換機(jī)地址

discriminator local 2 //辨別本地標(biāo)識(shí)為2

discriminator remote 1 //辨別遠(yuǎn)端標(biāo)識(shí)為1

commit //提交配置

#

ip route-static 192.168.10.0 255.255.255.0 192.168.20.1 track bfd-session sw20

ip route-static 192.168.10.0 255.255.255.0 192.168.40.1 preference 80

#

交換機(jī)SW2的配置如下：

sysname SW3

#

vlan batch 40

#

interface GigabitEthernet0/0/1

port link-type trunk

port trunk allow-pass vlan 40

#

interface GigabitEthernet0/0/2

port link-type trunk

port trunk allow-pass vlan 40

總結(jié)

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