VRRP+MSTP

1.四个交换机上分别配置VLAN10,20,30

[S1]vlan batch 10 20 30

[S2]vlan batch 10 20 30

[S3]vlan batch 10 20 30

[S4]vlan batch 10 20 30

2.配置trunk接口和access接口

LSW1：

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 trunk

port trunk allow-pass vlan 2 to 4094

LSW2:

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 trunk

port trunk allow-pass vlan 2 to 4094

LSW3:

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

LSW4：

interface Ethernet0/0/1

port link-type access

port default vlan 10

#

interface Ethernet0/0/2

port link-type access

port default vlan 20

#

interface Ethernet0/0/3

port link-type trunk

port trunk allow-pass vlan 2 to 4094

#

interface Ethernet0/0/4

port link-type trunk

port trunk allow-pass vlan 2 to 4094

3.配置VLAN间的路由

LSW1：

#

interface Vlanif10

ip address 192.168.10.251 255.255.255.0

#

interface Vlanif20

ip address 192.168.20.251 255.255.255.0

LSW2：

#

interface Vlanif10

ip address 192.168.10.252 255.255.255.0

#

interface Vlanif20

ip address 192.168.20.252 255.255.255.0

LSW3:

#

interface Vlanif10

ip address 192.168.10.253 255.255.255.0

#

interface Vlanif20

ip address 192.168.20.253 255.255.255.0

#

interface Vlanif30

ip address 192.168.30.253 255.255.255.0

4.配置路由协议

LSW1：

#

ospf 1

area 0.0.0.0

  network 0.0.0.0 255.255.255.255

LSW2：

#

ospf 1

area 0.0.0.0

  network 0.0.0.0 255.255.255.255

LSW3：

#

ospf 1

area 0.0.0.0

  network 0.0.0.0 255.255.255.255

5.配置VRRP

LSW1：

interface Vlanif10

ip address 192.168.10.251 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.10.254

vrrp vrid 1 priority 120

#

interface Vlanif20

ip address 192.168.20.251 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.20.254

LSW2：

interface Vlanif10

ip address 192.168.10.252 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.10.254

#

interface Vlanif20

ip address 192.168.20.252 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.20.254

vrrp vrid 1 priority 120

6.配置端口跟踪

LSW1：

interface Vlanif10

ip address 192.168.10.251 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.10.254

vrrp vrid 1 priority 120

vrrp vrid 1 track interface Ethernet0/0/3 reduced 15

vrrp vrid 1 track interface Ethernet0/0/1 reduced 15

LSW2：

interface Vlanif20

ip address 192.168.20.252 255.255.255.0

vrrp vrid 1 virtual-ip 192.168.20.254

vrrp vrid 1 priority 120

vrrp vrid 1 track interface Ethernet0/0/3 reduced 15

vrrp vrid 1 track interface Ethernet0/0/2 reduced 15

7.四个交换机上分别配置MSTP

LSW1：

stp region-configuration

region-name test

revision-level 1

instance 1 vlan 10

instance 2 vlan 20

instance 3 vlan 30

active region-configuration

LSW2：

stp region-configuration

region-name test

revision-level 1

instance 1 vlan 10

instance 2 vlan 20

instance 3 vlan 30

active region-configuration

LSW3：

stp region-configuration

region-name test

revision-level 1

instance 1 vlan 10

instance 2 vlan 20

instance 3 vlan 30

active region-configuration

LSW4：

stp region-configuration

region-name test

revision-level 1

instance 1 vlan 10

instance 2 vlan 20

instance 3 vlan 30

active region-configuration

8.LSW3上配置实例0-3为root

LSW3：

stp instance 0 root primary

stp instance 1 root primary

stp instance 2 root primary

stp instance 3 root primary

9.配置LSW1上的instance 1优先级为8192，instance 2 的优先级为16384

LSW1:

stp instance 1 priority 8192

stp instance 2 priority 16384

10.配置LSW2上的instance 1 优先级为16384，instance 2优先级为8192

LSW2：

stp instance 1 priority 16384

stp instance 2 priority 8192

配置完成