ITHELPDESK

Cisco IP telephones have included a small small LAN switch, inside the phone. A single UTP cable from switch is connected to one physical port on the embedded switch of phone and a short patch cable to PC is connected to the other physical port in the internal switch of IP phone. To make that happen, the switch port acts a little like an access link (for PC’s traffic), and a little like a trunk (for the phone’s traffic). There are 2 VLANs on that port, as follows: Data VLAN & Voice VLAN. How to configure the Voice and Data VLANs on ports connected to phones? SW1# configure terminal SW1# vlan10 SW1 (config-vlan) # vlan11 SW1 (config-vlan) # interface range Fastethernet0/1 – 4 SW1 (config-if) # switchport mode access SW1 (config-if) # switchport access vlan 10 SW1 (config-if) # switchport access vlan 10 SW1 (config-if) # switchport voice vlan 11 SW1 (config-if) #^Z SW1# Note: CDP is enabled by default, so its configuration is not required. What is...