diff --git "a/\350\265\226\351\274\216\346\226\207/20240511.md" "b/\350\265\226\351\274\216\346\226\207/20240511.md"
new file mode 100644
index 0000000000000000000000000000000000000000..81eaca2081dc0b73e1abfb7984ca83a3c6504005
--- /dev/null
+++ "b/\350\265\226\351\274\216\346\226\207/20240511.md"
@@ -0,0 +1,43 @@
+双层交换机
+
+en
+
+conf t
+
+vlan 10
+
+vlan 20
+
+int f0/1
+
+sw acc valn 10
+
+int f0/2
+
+sw acc vlan 20
+
+int f0/3
+
+sw mode trunk
+
+多层交换机
+
+en
+
+conf t
+
+ip routing
+
+int f0/1
+
+int vlan 10
+
+ip add 192.168.10.254 255.255.255.0
+
+int vlan 20
+
+ip add 192.168.20.254 255.255.255.0
+
+int f0/2
+
+sw acc vlan 10
\ No newline at end of file