【实验】配置VRRP负载分担

拓扑图

规格

适用于所有版本、所有形态的AR路由器。

组网需求

如图1所示，某公司网络中RouterA和RouterB为直连设备，下行连接一台交换机设备。用户希望对网络中的四种业务：上网、邮件、视频及核心业务进行分路，即上网和邮件业务从RouterA出去，视频和核心业务从RouterB出去。当RouterA和RouterB中的任意一个设备链路down的时候，这四种业务都快速切换到另一台Router上。

操作步骤

1.RouterA的配置

#sysname RouterA#acl number 3100 rule 5 permit ip destination 1.1.1.3 0 #bfd # traffic classifier 0 operator or if-match acl 3100 # traffic behavior 0 redirect ip-nexthop 192.168.2.253 track nqa internet icmp //配置策略路由和NQA联动# traffic policy 0 classifier 0 behavior 0 #ip pool 1 gateway-list 192.168.0.2 network 192.168.0.0 mask 255.255.255.0 #interface Vlanif1 ip address 192.168.0.253 255.255.255.0 vrrp vrid 1 virtual-ip 192.168.0.1 vrrp vrid 1 priority 90 vrrp vrid 1 track bfd-session 20 increased 20 //VRRP和BFD联动实现快速切换 vrrp vrid 2 virtual-ip 192.168.0.2 //主备备份组1和主备备份组2实现负载分担 vrrp vrid 2 track bfd-session 20 reduced 20 traffic-policy 0 inbound //策略路由实现区分业务 dhcp select global #interface GigabitEthernet0/0/0 ip address 1.1.1.2 255.255.255.0 #interface GigabitEthernet0/0/1 ip address 192.168.2.254 255.255.255.0 # bfd vrrp bind peer-ip 192.168.0.254 interface Vlanif1 //检测VRRP通过交换机相连链路质量discriminator local 20 discriminator remote 10 commit #nqa test-instance internet icmp //RouterA通过NQA检测通往RouterB网关的链路test-type icmp destination-address ipv4 2.2.2.1 frequency 12 timeout 1 start now #ip route-static 2.2.2.0 255.255.255.0 192.168.2.253ip route-static 0.0.0.0 0.0.0.0 1.1.1.1#Return

2.RouterB的配置

# sysname RouterB#acl number 3100                                                                  rule 5 permit ip destination 2.2.2.1 0                                         # bfd  #                                                                               traffic classifier 0 operator or                                                 if-match acl 3100                                                              #                                                                               traffic behavior 0                                                               redirect ip-nexthop 192.168.2.254 track nqa internet icmp  //配置策略路由和NQA联动#                                                                               traffic policy 0                                                                 classifier 0 behavior 0                                                        #                                                                               ip pool 1                                                                        gateway-list 192.168.0.1                                                        network 192.168.0.0 mask 255.255.255.0                                         #                                                                               interface Vlanif1                                                                ip address 192.168.0.254 255.255.255.0                                          vrrp vrid 1 virtual-ip 192.168.0.1                                              vrrp vrid 1 track bfd-session 10 reduced 20                                  vrrp vrid 2 virtual-ip 192.168.0.2  //主备备份组1和主备备份组2实现负载分担            vrrp vrid 2 priority 90                                                         vrrp vrid 2 track bfd-session 10 increased 20  //VRRP和BFD联动实现快速切换         traffic-policy 0 inbound  //策略路由实现区分业务                                   dhcp select global                                                             #                                                                                 interface GigabitEthernet0/0/0                                                   ip address 2.2.2.2 255.255.255.0                                         #                                                                            interface GigabitEthernet0/0/1                                                ip address 192.168.2.253 255.255.255.0  //配置RouterB的接口IP地址#                                                                               bfd vrrp bind peer-ip 192.168.0.253 interface Vlanif1  //检测VRRP通过交换机相连的链路质量 discriminator local 10                                                          discriminator remote 20                                                         commit                                                                         #nqa test-instance internet icmp  //RouterB通过NQA检测通往RouterA网关的链路           test-type icmp                                                                  destination-address ipv4 1.1.1.1                                    frequency 12                                                       timeout 1                                                                       start now                                                                      #ip route-static 1.1.1.0 255.255.255.0 192.168.2.254ip route-static 0.0.0.0 0.0.0.0 2.2.2.1  //配置静态路由使路由互通

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