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1.PC1的网关ip位于汇聚交换机A，PC2的网关IP位于汇聚交换机B，默认均为vlan 1；
2.核心交换机A 与核心交换机B 采用VRRP实现高可用，双机互联端口采用二层聚合；
3.核心交换机A 指定为Vlan 194 和 vlan 192 的根桥（bridge root），核心交换机B指定为vlan195 和vlan193的根桥（bridge root）;
汇聚层交换机A：
#生成树的模式选为mstp
stp mode mstp
#进入生成树的配置模式
stp region-configuration
region-name yongfu
#创建实例1，将vlan192、194划到实例1中
instance 1 vlan 192 194
#创建实例1，将vlan193、195划到实例2中
instance 2 vlan 193 195
#激活配置
active region-configuration
interface Vlanif1
#接入层交换机的网关ip
ip address 10.12.192.254 255.255.255.128
interface Vlanif192
ip address 10.13.192.156 255.255.255.248
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
#配置环回接口的IP地址
interface LoopBack0
ip address 1.1.1.1 255.255.255.0
#配置route-id 1.1.1.1
ospf 1 router-id 1.1.1.1
area 0
#宣告直连网络
network 10.13.192.0 0.0.0.255
network 10.12.192.128 0.0.0.127
汇聚层交换机B：
vlan batch 193
stp mode mstp
stp region-configuration
region-name yongfu
instance 1 vlan 192 194
instance 2 vlan 193 195
active region-configuration
interface Vlanif1
#pc2的网关ip
ip address 10.14.192.126 255.255.255.128
interface Vlanif193
ip address 10.13.193.156 255.255.255.248
interface Ethernet0/0/1
port link-type trunk
port trunk allow-pass vlan 193
interface Ethernet0/0/2
port link-type trunk
port trunk allow-pass vlan 193
#配置ospf，手动设置route-id
ospf 1 router-id 2.2.2.2
area 0
#宣告直连网段
network 10.14.192.0 0.0.0.127
network 10.13.193.152 0.0.0.7
核心交换机lsw1：
#创建vlan192-195
vlan batch 192 to 195
#指定该交换机为实例1的根网桥（即为vlan 192、194的根桥）
stp instance 1 root primary
#指定该交换机为实例2的根网桥（即为vlan 193、195的备根桥）
stp instance 2 root secondary
#配置mstp生成树协议
stp mode mstp
stp region-configuration
region-name yongfu
instance 1 vlan 192 194
instance 2 vlan 193 195
active region-configuration
interface Vlanif192
ip address 10.13.192.153 255.255.255.248
#配置vrrp协议，vrid为192，虚拟网关地址为10.13.192.155
vrrp vrid 192 virtual-ip 10.13.192.155
#默认优先级是100，现将优先级设置为120，为主网关设备
vrrp vrid 192 priority 120
interface Vlanif193
ip address 10.13.193.153 255.255.255.248
#不配置优先级，默认为100，作为备用网关
vrrp vrid 193 virtual-ip 10.13.193.155
interface Vlanif194
ip address 10.13.194.1 255.255.255.248
vrrp vrid 194 virtual-ip 10.13.194.3
vrrp vrid 194 priority 120
interface Vlanif195
ip address 10.13.195.1 255.255.255.248
vrrp vrid 195 virtual-ip 10.13.195.3
#配置聚合口
interface Eth-Trunk1
port link-type trunk
#放通所有vlan
port trunk allow-pass vlan 2 to 4094
#将接口划分为对应的vlan
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 192
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 193
#将GigabitEthernet0/0/3、GigabitEthernet0/0/4捆绑成一个聚合口
interface GigabitEthernet0/0/3
eth-trunk 1
interface GigabitEthernet0/0/4
eth-trunk 1
interface GigabitEthernet0/0/5
port link-type trunk
port trunk allow-pass vlan 2 to 4094
interface GigabitEthernet0/0/6
port link-type trunk
port trunk allow-pass vlan 2 to 4094
#配置ospf，进程号为1，route-id为3.3.3.3
ospf 1 router-id 3.3.3.3
area 0.0.0.0
#宣告直连网段
network 10.13.192.152 0.0.0.7
network 10.13.193.152 0.0.0.7
network 10.13.194.0 0.0.0.7
network 10.13.195.0 0.0.0.7
ip route-static 19.130.107.0 255.255.255.192 10.13.194.5
核心交换机lsw2：（配置与lsw1相似）
#创建vlan192-195
vlan batch 192 to 195
stp mode mstp
stp instance 2 root primary
stp instance 1 root secondary
stp region-configuration
region-name yongfu
instance 1 vlan 192 194
instance 2 vlan 193 195
active region-configuration
#配置个接口的ip地址，配置vrrp，设置主、备网关
interface Vlanif192
ip address 10.13.192.154 255.255.255.248
vrrp vrid 192 virtual-ip 10.13.192.155
interface Vlanif193
ip address 10.13.193.154 255.255.255.248
vrrp vrid 193 virtual-ip 10.13.193.155
vrrp vrid 193 priority 120
interface Vlanif194
ip address 10.13.194.2 255.255.255.248
vrrp vrid 194 virtual-ip 10.13.194.3
interface Vlanif195
ip address 10.13.195.2 255.255.255.248
vrrp vrid 195 virtual-ip 10.13.195.3
vrrp vrid 195 priority 120
interface Eth-Trunk1
port link-type trunk
port trunk allow-pass vlan 2 to 4094
interface GigabitEthernet0/0/1
port link-type trunk
port trunk allow-pass vlan 192
interface GigabitEthernet0/0/2
port link-type trunk
port trunk allow-pass vlan 193
interface GigabitEthernet0/0/3
eth-trunk 1
interface GigabitEthernet0/0/4
eth-trunk 1
interface GigabitEthernet0/0/5
port link-type trunk
port trunk allow-pass vlan 2 to 4094
interface GigabitEthernet0/0/6
port link-type trunk
port trunk allow-pass vlan 2 to 4094
交换机lsw14：
vlan batch 194
stp mode mstp
stp region-configuration
region-name yongfu
instance 1 vlan 192 194
instance 2 vlan 193 195
active region-configuration
interface Vlanif1
ip address 10.13.192.133 255.255.255.252
interface Vlanif194
ip address 10.13.194.5 255.255.255.248
interface Ethernet0/0/1
port link-type trunk
port trunk allow-pass vlan 194
interface Ethernet0/0/2
port link-type trunk
port trunk allow-pass vlan 194
#配置ospf，进程号为1，route-id 5.5.5.5
ospf 1 router-id 5.5.5.5
area 0.0.0.0
network 10.13.194.0 0.0.0.7
network 10.13.192.132 0.0.0.3
ip route-static 19.130.107.0 255.255.255.0 10.13.192.134
交换机lsw15：
vlan batch 195
stp mode mstp
stp region-configuration
region-name yongu
instance 1 vlan 192 194
instance 2 vlan 193 195
active region-configuration
interface Vlanif1
ip address 10.13.192.149 255.255.255.252
interface Vlanif195
ip address 10.13.195.5 255.255.255.248
interface Ethernet0/0/1
port link-type trunk
port trunk allow-pass vlan 195
interface Ethernet0/0/2
port link-type trunk
port trunk allow-pass vlan 195
ospf 1 router-id 6.6.6.6
area 0.0.0.0
network 10.13.192.148 0.0.0.3
network 10.13.195.0 0.0.0.7
ip route-static 61.142.211.0 255.255.255.0 10.13.192.150
出口路由器R1:
interface Ethernet0/0/0
ip address 10.13.192.134 255.255.255.252
interface Ethernet0/0/1
ip address 19.130.107.1 255.255.255.0
ospf 1 router-id 7.7.7.7
area 0.0.0.0
network 10.13.192.132 0.0.0.3
network 19.130.107.0 0.0.0.255
ip route-static 0.0.0.0 0.0.0.0 10.13.192.133
出口路由器R2:
interface Ethernet0/0/0
ip address 10.13.192.150 255.255.255.252
interface Ethernet0/0/1
interface GigabitEthernet0/0/0
ip address 61.142.211.122 255.255.255.0
nat static global 61.142.211.123 inside 10.12.194.1 netmask 255.255.255.255
nat static enable
ospf 1 router-id 8.8.8.8
area 0.0.0.0
network 10.13.192.148 0.0.0.3
network 61.142.211.0 0.0.0.255
ip route-static 0.0.0.0 0.0.0.0 10.13.192.149