新华三s5120V52p-si做核心交换机多网段无障碍互通

在 MSR3640-XS 路由器上配置：
1. 配置接口 IP 地址和子网掩码：
interface GigabitEthernet0/0/0
ip address 192.168.100.1 255.255.255.0
interface GigabitEthernet0/0/1
ip address 192.168.1.1 255.255.255.0
interface GigabitEthernet0/0/2
ip address 192.168.2.1 255.255.255.0
interface GigabitEthernet0/0/3
ip address 192.168.3.1 255.255.255.0
interface GigabitEthernet0/0/4
ip address 172.22.8.1 255.255.255.0
interface GigabitEthernet0/0/5
ip address 172.22.7.1 255.255.255.0
interface GigabitEthernet0/0/6
ip address 172.22.6.1 255.255.255.0
interface GigabitEthernet0/0/7
ip address 172.22.5.1 255.255.255.0
2. 配置默认路由：
ip route-static 0.0.0.0 0.0.0.0 <ISP 网关 IP 地址>
3. 配置 NAT：
nat address-group 1 192.168.100.0 24
nat address-group 2 192.168.1.0 24
nat address-group 3 192.168.2.0 24
nat address-group 4 192.168.3.0 24
nat address-group 5 172.22.8.0 24
nat address-group 6 172.22.7.0 24
nat address-group 7 172.22.6.0 24
nat address-group 8 172.22.5.0 24
nat outbound 2000 address-group 1 interface GigabitEthernet0/0/0
nat outbound 2001 address-group 2 interface GigabitEthernet0/0/1
nat outbound 2002 address-group 3 interface GigabitEthernet0/0/2
nat outbound 2003 address-group 4 interface GigabitEthernet0/0/3
nat outbound 2004 address-group 5 interface GigabitEthernet0/0/4
nat outbound 2005 address-group 6 interface GigabitEthernet0/0/5
nat outbound 2006 address-group 7 interface GigabitEthernet0/0/6
nat outbound 2007 address-group 8 interface GigabitEthernet0/0/7
4. 配置 OSPF：
ospf
router-id 192.168.100.1
area 0.0.0.0
network 192.168.100.0 0.0.0.255
network 192.168.1.0 0.0.0.255
network 192.168.2.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 172.22.5.0 0.0.0.255
network 172.22.6.0 0.0.0.255
network 172.22.7.0 0.0.0.255
network 172.22.8.0 0.0.0.255
在 S5120V2-52P-SI 核心交换机上配置：
1. 配置接口 VLAN 和 IP 地址：
interface Vlanif100
ip address 192.168.100.2 255.255.255.0
interface Vlanif1
ip address 192.168.1.2 255.255.255.0
interface Vlanif2
ip address 192.168.2.2 255.255.255.0
interface Vlanif3
ip address 192.168.3.2 255.255.255.0
interface Vlanif4
ip address 172.22.8.2 255.255.255.0
interface Vlanif5
ip address 172.22.7.2 255.255.255.0
interface Vlanif6
ip address 172.22.6.2 255.255.255.0
interface Vlanif7
ip address 172.22.5.2 255.255.255.0
2. 配置 VLAN：
vlan batch 1 to 7
3. 配置交换机 OSPF：
ospf
router-id 192.168.100.2
area 0.0.0.0
network 192.168.100.0 0.0.0.255
network 192.168.1.0 0.0.0.255
network 192.168.2.0 0.0.0.255
network 192.168.3.0 0.0.0.255
network 172.22.5.0 0.0.0.255
network 172.22.6.0 0.0.0.255
network 172.22.7.0 0.0.0.255
network 172.22.8.0 0.0.0.255
4. 配置默认路由：
ip route-static 0.0.0.0 0.0.0.0 <MSR3640-XS 路由器接口 IP 地址>
5. 配置交换机端口：
interface GigabitEthernet0/0/1
port link-type access
port default vlan 1
interface GigabitEthernet0/0/2
port link-type access
port default vlan 2
interface GigabitEthernet0/0/3
port link-type access
port default vlan 3
interface GigabitEthernet0/0/4
port link-type access
port default vlan 4
interface GigabitEthernet0/0/5
port link-type access
port default vlan 5
interface GigabitEthernet0/0/6
port link-type access
port default vlan 6
interface GigabitEthernet0/0/7
port link-type access
port default vlan 7
interface GigabitEthernet0/0/8
port link-type access
port default vlan 7
以上是一个基本的网络配置，如果需要更复杂的配置（如安全策略、QoS 等），还需要根据实际情况进行进一步的配置。