diff --git a/B. 第二阶段/拓扑练习/0902_多服务练习拓扑.md b/B. 第二阶段/拓扑练习/0902_多服务练习拓扑.md
new file mode 100644
index 0000000..65adc43
--- /dev/null
+++ b/B. 第二阶段/拓扑练习/0902_多服务练习拓扑.md	
@@ -0,0 +1,113 @@
+# 多服务练习拓扑
+
+![image-20240902180316802](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240902180316802.png)
+
+![image-20240902173915624](https://picgo-noriu.oss-cn-beijing.aliyuncs.com/Images/image-20240902173915624.png)
+
+### 一、IP、VLAN、Routing
+
+- **PC**
+
+- **SW1**
+
+  ```
+  [SW1]vlan batch 10 20 30
+  [SW1]int g0/0/1
+  [SW1-GigabitEthernet0/0/1]port link-type access
+  [SW1-GigabitEthernet0/0/1]port default vlan 10
+  [SW1-GigabitEthernet0/0/1]int g0/0/2
+  [SW1-GigabitEthernet0/0/2]port link-type trunk
+  [SW1-GigabitEthernet0/0/2]port trunk allow-pass vlan all
+  ```
+
+- **SW2**
+
+  ```
+  [SW2]vlan batch 10 20 30
+  [SW2]int g0/0/1
+  [SW2-GigabitEthernet0/0/1]port link-type access
+  [SW2-GigabitEthernet0/0/1]port default vlan 20
+  [SW2-GigabitEthernet0/0/1]int g0/0/2
+  [SW2-GigabitEthernet0/0/2]port link-type trunk
+  [SW2-GigabitEthernet0/0/2]port trunk allow-pass vlan all
+  ```
+
+- **SW3**
+
+  ```
+  [SW3]vlan batch 10 20 30
+  [SW3]int g0/0/1
+  [SW3-GigabitEthernet0/0/1]port link-type access
+  [SW3-GigabitEthernet0/0/1]port default vlan 30
+  [SW3-GigabitEthernet0/0/1]int g0/0/2
+  [SW3-GigabitEthernet0/0/2]port link-type trunk
+  [SW3-GigabitEthernet0/0/2]port trunk allow-pass vlan all
+  ```
+
+- **HX-SW5**
+
+  ```
+  [HX-SW5]vlan batch 10 20 30 50
+  [HX-SW5]port-group group-member g0/0/1 to g0/0/3
+  [HX-SW5-port-group]port link-type trunk 
+  [HX-SW5-port-group]quit
+  [HX-SW5]int g0/0/5
+  [HX-SW5-GigabitEthernet0/0/5]port link-type access
+  [HX-SW5-GigabitEthernet0/0/5]port default vlan 50
+  ```
+
+- **AR3 - DHCP**
+
+  ```
+  [AR3-DHCP]int g0/0/1
+  [AR3-DHCP-GigabitEthernet0/0/1]ip add 192.168.50.1 24
+  [AR3-DHCP-GigabitEthernet0/0/1]quit
+  [AR3-DHCP]ip route-static 0.0.0.0 0 192.168.50.251
+  ```
+
+### 二、DHCP
+
+- **AR3 - DHCP**
+
+  ```
+  [AR3-DHCP]dhcp enable 
+  [AR3-DHCP]ip pool vlan10
+  [AR3-DHCP-ip-pool-vlan10]network 192.168.10.0 mask 24
+  [AR3-DHCP-ip-pool-vlan10]gateway-list 192.168.10.254
+  [AR3-DHCP-ip-pool-vlan10]dns-list 8.8.8.8
+  [AR3-DHCP-ip-pool-vlan10]quit
+  [AR3-DHCP]ip pool vlan20
+  [AR3-DHCP-ip-pool-vlan20]network 192.168.20.0 mask 24
+  [AR3-DHCP-ip-pool-vlan20]gateway-list 192.168.20.254
+  [AR3-DHCP-ip-pool-vlan20]dns-list 8.8.8.8
+  [AR3-DHCP-ip-pool-vlan20]quit
+  [AR3-DHCP]ip pool vlan30
+  [AR3-DHCP-ip-pool-vlan30]network 192.168.30.0 mask 24
+  [AR3-DHCP-ip-pool-vlan30]gateway-list 192.168.30.254
+  [AR3-DHCP-ip-pool-vlan30]dns-list 8.8.8.8
+  [AR3-DHCP-ip-pool-vlan30]quit
+  [AR3-DHCP]int g0/0/1
+  [AR3-DHCP-GigabitEthernet0/0/1]dhcp select global
+  ```
+
+- **HX - SW5**
+
+  ```
+  [HX-SW5]dhcp enable 
+  [HX-SW5]int vlan 10
+  [HX-SW5-Vlanif10]ip add 192.168.10.251 24
+  [HX-SW5-Vlanif10]dhcp select relay
+  [HX-SW5-Vlanif10]dhcp relay server-ip 192.168.50.1
+  [HX-SW5-Vlanif10]int vlan 20
+  [HX-SW5-Vlanif20]ip add 192.168.20.251 24
+  [HX-SW5-Vlanif20]dhcp select relay
+  [HX-SW5-Vlanif20]dhcp relay server-ip 192.168.50.1
+  [HX-SW5-Vlanif20]int vlan 30
+  [HX-SW5-Vlanif30]ip add 192.168.30.251 24
+  [HX-SW5-Vlanif30]dhcp select relay
+  [HX-SW5-Vlanif30]dhcp relay server-ip 192.168.50.1
+  [HX-SW5-Vlanif30]int vlan 50
+  [HX-SW5-Vlanif50]ip add 192.168.50.251 24
+  ```
+
+  
\ No newline at end of file