VRRP结合mstp的典型配置

拓扑

第一步：配置vlan、trunk

SW3：

#

 sysname SW3

#

vlan 10 

 description pc4 //PC4网段

#

vlan 20

 description pc6 //PC6网段

#             

interface GigabitEthernet1/0/19 //配置trunk链路放通业务vlan 

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20

#

interface GigabitEthernet1/0/9 //配置trunk链路放通业务vlan

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20

#

interface GigabitEthernet1/0/1 //配置acces接口，放通业务vlan

 port link-mode bridge

 port access vlan 10

#

interface GigabitEthernet1/0/2 //配置acces接口，放通业务vlan

 port link-mode bridge

 port access vlan 20

#

SW1:

#

 sysname SW1

#

vlan 10

#

vlan 11

#             

vlan 20       

#                                 

interface GigabitEthernet1/0/1 //在接口上应用vlan虚接口，关闭stp功能

 port link-mode bridge

 port access vlan 11

 combo enable fiber

 undo stp enable

# 

interface GigabitEthernet1/0/19 / //配置trunk链路放通业务vlan

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20 

 combo enable fiber

#

interface GigabitEthernet1/0/20 //配置trunk链路放通业务vlan

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20

 combo enable fiber

#

SW2:

#

 sysname SW2

#

vlan 10

#

vlan 20

#

vlan 21       

#             

#

interface GigabitEthernet1/0/2  //在接口上应用vlan虚接口，关闭stp功能

 port link-mode bridge

 port access vlan 21

 combo enable fiber

 undo stp enable

#

interface GigabitEthernet1/0/9 //配置trunk链路放通业务vlan

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20

 combo enable fiber

#

interface GigabitEthernet1/0/20 //配置trunk链路放通业务vlan

 port link-mode bridge

 port link-type trunk

 undo port trunk permit vlan 1

 port trunk permit vlan 10 20

 combo enable fiber

#

第二步，配置MSTP

SW1、SW2、SW3配置相同：

SW1:

#

stp region-configuration //配置两个实例，并配置激活

 region-name h3c

 instance 1 vlan 10

 instance 2 vlan 20

 active region-configuration

#

SW2:

#

stp region-configuration //配置两个实例，并配置激活

 region-name h3c

 instance 1 vlan 10

 instance 2 vlan 20

 active region-configuration

#

SW3:

#

stp region-configuration //配置两个实例，并配置激活

 region-name h3c

 instance 1 vlan 10

 instance 2 vlan 20

 active region-configuration

#

B、主备根

Sw1：

#

 stp instance 0 to 1 root primary //sw1实例1为主根

 stp instance 2 root secondary   //sw1实例2为备根

 stp global enable 

#

SW2：

#

 stp instance 2 root primary //sw2实例1为主根

 stp instance 0 to 1 root secondary  //sw2实例1为备根

 stp global enable

#

查看mstp配置是否正确

第三步配置VRRP

SW1:

#

interface Vlan-interface10   //进入vlan10虚接口配置ip地址

ip address 10.1.10.2 255.255.255.0

 vrrp vrid 10 virtual-ip 10.1.10.1 //配置10.1.10.1为虚拟网关

 vrrp vrid 10 priority 120  //配置优先级为120

#

interface Vlan-interface20   //进入vlan20虚接口配置ip地址

 ip address 10.1.20.2 255.255.255.0

 vrrp vrid 20 virtual-ip 10.1.20.1 //配置10.1.20.1为虚拟网关

#

SW2:

#

interface Vlan-interface10   //进入vlan10虚接口配置ip地址

 ip address 10.1.10.3 255.255.255.0

 vrrp vrid 10 virtual-ip 10.1.10.1  //配置10.1.10.1为虚拟网关

#

interface Vlan-interface20  //进入vlan20虚接口配置ip地址

 ip address 10.1.20.3 255.255.255.0

 vrrp vrid 20 virtual-ip 10.1.20.1  //配置10.1.20.1为虚拟网关

 vrrp vrid 20 priority 120 //配置优先级为120

#

查看vrrp状态

Ping路由器loopback接口测试

把SW1链路断开，发现主备切换

再次ping，能通链路走SW2