华为vrrp配置

VRRP基本概念

vrrp原理

同一组的vrrp中只有一个master。通过优先级进行选举谁是master,优先级相同则通过IP地址进行选举。真正具有转发功能的是master，当master出现故障时,其他的backup会根据优先级重新选举新的master，继续进行转发。中间可能会断开几秒。

拓补图如下：

VRRP配置

R1:
#
interface GigabitEthernet0/0/0
 ip address 3.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/1
 ip address 4.1.1.2 255.255.255.0
#
interface GigabitEthernet0/0/2
 ip address 5.1.1.254 255.255.255.0
#
rip 1
 version 2
 network 3.0.0.0
 network 4.0.0.0
 network 5.0.0.0
#
LSW1：
#
interface Vlanif10
 ip address 1.1.1.252 255.255.255.0
 vrrp vrid 1 virtual-ip 1.1.1.254
 vrrp vrid 1 priority 150
 vrrp vrid 1 track interface GigabitEthernet0/0/4 reduced 100
 vrrp vrid 1 authentication-mode md5  admin
#
interface Vlanif20
 ip address 2.1.1.252 255.255.255.0
 vrrp vrid 2 virtual-ip 2.1.1.254
#
interface Vlanif30
 ip address 3.1.1.1 255.255.255.0
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/4
 port link-type trunk
 port trunk pvid vlan 30
 port trunk allow-pass vlan 2 to 4094
#
rip 1
 version 2
 network 1.0.0.0
 network 2.0.0.0
 network 3.0.0.0
#

LSW2
#
interface Vlanif10
 ip address 1.1.1.253 255.255.255.0
 vrrp vrid 1 virtual-ip 1.1.1.254
 vrrp vrid 1 authentication-mode md5  admin
#
interface Vlanif20
 ip address 2.1.1.253 255.255.255.0
 vrrp vrid 2 virtual-ip 2.1.1.254
 vrrp vrid 2 priority 150
 vrrp vrid 2 track interface GigabitEthernet0/0/4 reduced 100
#
interface Vlanif40
 ip address 4.1.1.1 255.255.255.0
#
interface MEth0/0/1
#
interface GigabitEthernet0/0/1
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/2
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/4
 port link-type trunk
 port trunk pvid vlan 40
 port trunk allow-pass vlan 2 to 4094
#
#
rip 1
 version 2
 network 1.0.0.0
 network 2.0.0.0
 network 4.0.0.0
#
LSW3和LSW4一样
#
interface GigabitEthernet0/0/1
 port link-type access
 port default vlan 10
#
interface GigabitEthernet0/0/2
 port link-type access
 port default vlan 20
#
interface GigabitEthernet0/0/3
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#
interface GigabitEthernet0/0/4
 port link-type trunk
 port trunk allow-pass vlan 2 to 4094
#