それでは、Switch_Aから設定してゆきます。 ●Switch_Aの設定 Switch#conf t Switch(config)#hostname Switch_A Switch_Aconfig)#exit Switch_A#vlan database Switch_A(vlan)#vtp domain CCNA Switch_A(vlan)#vtp server Switch_A(vlan)#vlan 10 name vlan10 Switch_A(vlan)#vlan 20 name vlan20 Switch_A(vlan)#vlan 30 name vlan30 Switch_A(vlan)#exit Switch_A#config t Switch_A(config)#int f0/1 Switch_A(config-if)#switchport mode access Sw