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
拓扑图：
具体配置步骤
1.在lsw1和lws2上基于接口划分vlan 10 20。
2.lsw3和lsw4交换机之间的链路聚合，并将接口类型配置为trunk，允许所以vlan通过。
3.在lsw3和lsw4上基于端口划分3个vlan，交换机之间接口用trunk，交换机与路由器之间用access，并配置ip地址。
4.在lsw3和lsw4上配置vrrp，配置虚拟地址和优先级。
5.在lsw3和lsw4上配置mstp，并设置实例，设置主根和词根
6.在lsw3，lsw4 ,R1上配置ospf 。
各设备的配置如下：
LSW1
[Huawei]vlan batch 10 20
[Huawei]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type access
[Huawei-Ethernet0/0/1]port default vlan 10
[Huawei-Ethernet0/0/1]int e0/0/3
[Huawei-Ethernet0/0/3]port link-type trunk
[Huawei-Ethernet0/0/3]port trunk allow-pass vlan all
[Huawei-Ethernet0/0/3]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type trunk
[Huawei-Ethernet0/0/2]port trunk allow-pass vlan all
[Huawei]stp region-configuration
[Huawei-mst-region] region-name rg1
[Huawei-mst-region] instance 1 vlan 10
[Huawei-mst-region] instance 2 vlan 20
[Huawei-mst-region] active region-configuration
LSW2
[Huawei]vlan batch 10 20
[Huawei]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type access
[Huawei-Ethernet0/0/1]port default vlan 20
[Huawei-Ethernet0/0/1]int e0/0/2
[Huawei-Ethernet0/0/2]port link-type trunk
[Huawei-Ethernet0/0/2]port trunk allow-pass vlan all
[Huawei-Ethernet0/0/2]int e0/0/3
[Huawei-Ethernet0/0/3]port link-type trunk
[Huawei-Ethernet0/0/3]port trunk allow-pass vlan all
[Huawei]stp region-configuration
[Huawei-mst-region] region-name rg1
[Huawei-mst-region] instance 1 vlan 10
[Huawei-mst-region] instance 2 vlan 20
[Huawei-mst-region] active region-configuration
LSW3
链路聚合
[Huawei]int Eth-Trunk 1
[Huawei-Eth-Trunk1]trunkport e0/0/2
[Huawei-Eth-Trunk1]trunkport e0/0/3
[Huawei-Eth-Trunk1]port link-type trunk
[Huawei-Eth-Trunk1]port trunk allow-pass vlan all
[Huawei]int e0/0/4
[Huawei-Ethernet0/0/4]port link-type access
[Huawei-Ethernet0/0/4]port default vlan 30
[Huawei-Ethernet0/0/4]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type trunk
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all
[Huawei-Ethernet0/0/1]int e0/0/5
[Huawei-Ethernet0/0/5]port link-type trunk
[Huawei-Ethernet0/0/5]port trunk allow-pass vlan all
[Huawei]int vlan 10
[Huawei-Vlanif10]ip address 10.1.1.3 24
[Huawei-Vlanif10]int vlan 20
[Huawei-Vlanif20]ip address 10.1.2.3 24
[Huawei-Vlanif20]int vlan 30
[Huawei-Vlanif30]ip address 10.1.4.3 24
[Huawei]int vlan 10
[Huawei-Vlanif10]vrrp vrid 1 virtual-ip 10.1.1.254
[Huawei-Vlanif10]vrrp vrid 1 priority 120
[Huawei]int vlan 20
[Huawei-Vlanif20]vrrp vrid 2 virtual-ip 10.1.2.254
[Huawei]stp region-configuration
[Huawei-mst-region]instance 1 vlan 10
[Huawei-mst-region]instance 2 vlan 20
[Huawei-mst-region]region-name rg1
[Huawei-mst-region]active region-configuration
[Huawei]stp instance 1 root primary
[Huawei]stp instance 2 root secondary
[Huawei]ospf
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]ne
[Huawei-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 10.1.4.0 0.0.0.255
LSW4
链路聚合
[Huawei]int Eth-Trunk 1
[Huawei-Eth-Trunk1]trunkport e0/0/2
[Huawei-Eth-Trunk1]trunkport e0/0/3
[Huawei-Eth-Trunk1]port link-type trunk
[Huawei-Eth-Trunk1]port trunk allow-pass vlan all
[Huawei]int e0/0/4
[Huawei-Ethernet0/0/4]port link-type access
[Huawei-Ethernet0/0/4]port default vlan 30
[Huawei-Ethernet0/0/4]int e0/0/1
[Huawei-Ethernet0/0/1]port link-type trunk
[Huawei-Ethernet0/0/1]port trunk allow-pass vlan all
[Huawei-Ethernet0/0/1]int e0/0/5
[Huawei-Ethernet0/0/5]port link-type trunk
[Huawei-Ethernet0/0/5]port trunk allow-pass vlan all
[Huawei]int vlan 30
[Huawei-Vlanif30]ip address 10.1.5.3 24
[Huawei-Vlanif30]int vlan 20
[Huawei-Vlanif20]ip address 10.1.2.4 24
[Huawei-Vlanif20]int vlan 10
[Huawei-Vlanif10]ip address 10.1.1.4 24
[Huawei]int vlan 10
[Huawei-Vlanif10]vrrp vrid 1 virtual-ip 10.1.1.254
[Huawei]int vlan 20
[Huawei-Vlanif20]vrrp vrid 2virtual-ip 10.1.2.254
[Huawei-Vlanif20]vrrp vrid 2priority 120
[Huawei]stp instance 1 root secondary
[Huawei]stp instance 2 root primary
[Huawei]ospf
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]netw
[Huawei-ospf-1-area-0.0.0.0]network 10.1.1.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 10.1.2.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 10.1.5.0 0.0.0.255
R1
[Huawei]int g0/0/0
[Huawei-GigabitEthernet0/0/0]ip address 10.1.4.1 24
[Huawei-GigabitEthernet0/0/0]int e0/0/1
[Huawei-Ethernet0/0/1]ip address 10.1.5.1 24
[Huawei]int loop 0
[Huawei-LoopBack0]ip address 1.1.1.1 32
[Huawei]ospf
[Huawei-ospf-1]area 0
[Huawei-ospf-1-area-0.0.0.0]network 10.1.4.0 0.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network10.1.5.00.0.0.255
[Huawei-ospf-1-area-0.0.0.0]network 1.1.1.1 0.0.0.0
测试
lsw3
lsw4
pc1 ping 10.1.4.1
pc2 ping
