VRRP+MSTP组网配置实例

目前新的网络设备基本使用网络虚拟化,但在中小企业考虑成本问题没有升级的网络设备还是采用VRRP+MSTP组网。

VRRP是一种容错协议,当主机的下一跳路由器出现故障时,由另一台路由器来代替出现故障的路由器进行工作,从而保持网络通信的连续性和可靠性。

MSTP:多生成树协议,通过生成多个生成树,来解决以太网环路问题,以及交换机负载

拓扑如下:

VRRP+MSTP组网配置实例

上图所示vrrp+mstp组网做主备并流量负载均衡,PC1/2走CE1,ce1作为vlan10 20的主路由且为根桥,作为vlan30 40 的备路由,PC3/4走CE2,ce2作为vlan30 40 主路由且为根桥,作为vlan10 20备路由,各交换机之间配置trunk

配置如下:

一、配置CE1

1、批量创建

vlan batch 10 20 30 40

2、配置vrrp

interface Vlanif10

ip address 192.168.1.253 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.1.254(vrrp虚拟ip,vrid要和另外一台一致)

vrrp vrid 1 priority 120(优先级)

vrrp vrid 1 track interface GE1/0/0 reduce 30(跟踪上行接口,当上行口故障降低优先级成为备份设备)

#

interface Vlanif20

ip address 192.168.2.253 255.255.255.0

vrrp vrid 2 virtual-ip 192.168.2.254

vrrp vrid 2 priority 120

vrrp vrid 2 track interface GE1/0/0 reduce 30

#

interface Vlanif30

ip address 192.168.3.253 255.255.255.0

vrrp vrid 3 virtual-ip 192.168.3.254

#

interface Vlanif40

ip address 192.168.4.253 255.255.255.0

vrrp vrid 4 virtual-ip 192.168.4.254

3、配置mstp

stp en(启用stp)

stp mode mstp(模式mstp)

stp region-configuration(域配置)

region-name vrrp(域名,其他设备域名一致)

instance 1 vlan 10 20(实例1关联vlan10 20)

instance 2 vlan 30 40

qu(退出域配置)

stp instance 1 root primary(全局模式下,ce1为实例1的主根桥)

stp instance 2 root secondary(e1为实例2的次根桥)

4、各相关端口配置

interface GE1/0/1

port link-type trunk

port trunk allow-pass vlan all

#

interface GE1/0/2

port link-type trunk

port trunk allow-pass vlan all

#

interface Eth-Trunk1

port link-type trunk

port trunk allow-pass vlan all

#

interface GE1/0/3

eth-trunk 1

#

interface GE1/0/4

eth-trunk 1

#

二、配置CE2

1、批量创建

vlan batch 10 20 30 40

2、配置vrrp

interface Vlanif10

ip address 192.168.1.252 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.1.254(vrrp虚拟ip,vrid要和ce1一致)

vrrp vrid 1 priority 100(默认100,这条可以省)

#

interface Vlanif20

ip address 192.168.2.252 255.255.255.0

vrrp vrid 2 virtual-ip 192.168.2.254

#

interface Vlanif30

ip address 192.168.3.252 255.255.255.0

vrrp vrid 3 virtual-ip 192.168.3.254

vrrp vrid 3 priority 120

vrrp vrid 3 track interface GE1/0/0 reduce 30

#

interface Vlanif40

ip address 192.168.4.252 255.255.255.0

vrrp vrid 4 virtual-ip 192.168.4.254

vrrp vrid 4 priority 120

vrrp vrid 4 track interface GE1/0/0 reduce 30

3、配置mstp

stp en(启用stp)

stp mode mstp(模式mstp)

stp region-configuration(域配置)

region-name vrrp(域名,其他设备域名一致)

instance 1 vlan 10 20(实例1关联vlan10 20)

instance 2 vlan 30 40

stp instance 1 root secondary(ce2为实例1次根桥)

stp instance 2 root primary(ce2为实例2的主根桥)

4、各相关端口配置

interface GE1/0/1

port link-type trunk

port trunk allow-pass vlan all

#

interface GE1/0/2

port link-type trunk

port trunk allow-pass vlan all

#

interface Eth-Trunk1

port link-type trunk

port trunk allow-pass vlan all

#

interface GE1/0/3

eth-trunk 1

#

interface GE1/0/4

eth-trunk 1

#

三、配置sw1

批量创建vlan:

vlan batch 10 20 30 40

配置mstp:

stp en

stp mode mstp

stp region-configuration

region-name vrrp

instance 1 vlan 10 20

instance 2 vlan 30 40

active region-configuration

各端口配置:

interface Ethernet0/0/1

port link-type trunk

port trunk allow-pass vlan 2 to 4094

#

interface Ethernet0/0/2

port link-type trunk

port trunk allow-pass vlan 2 to 4094

#

interface Ethernet0/0/3

port link-type access

port default vlan 10

#

interface Ethernet0/0/4

port link-type access

port default vlan 20

#

四、配置sw2

批量创建vlan:

vlan batch 10 20 30 40

配置mstp:

stp en

stp mode mstp

stp region-configuration

region-name vrrp

instance 1 vlan 10 20

instance 2 vlan 30 40

active region-configuration

各端口配置:

interface Ethernet0/0/1

port link-type trunk

port trunk allow-pass vlan 2 to 4094

#

interface Ethernet0/0/2

port link-type trunk

port trunk allow-pass vlan 2 to 4094

#

interface Ethernet0/0/3

port link-type access

port default vlan 30

#

interface Ethernet0/0/4

port link-type access

port default vlan40

#

五、测试

查看 ce1 vrrp:dis vrrp

VRRP+MSTP组网配置实例

可以看到ce1做为vlan10 20 的master,vlan30 40 的backup

PC1长ping PC4,任意断开sw1与ce1的链路,ce1与ce2的链路,ce1与sw2的链路,都可以ping通pc4

VRRP+MSTP组网配置实例

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