Cisco WS-C3560G-24PS-S Software Guide - Page 213
Configuring Voice Ports to Carry Voice and Data Traffic on Different VLANs, Configuring Inline Power
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Chapter 7 Configuring the Switch Ports Configuring Inline Power on the Catalyst 3524-PWR Ports Configuring Voice Ports to Carry Voice and Data Traffic on Different VLANs The Cisco 7960 IP Phone has an integrated three-port 10/100 switch that can connect to a PC or other device. You can configure a switch port to instruct the phone to forward voice and data traffic on different virtual LANs (VLANs). In this configuration, VLAN 1 carries data traffic, and VLAN 2 carries voice traffic. In this configuration, you must connect all Cisco IP Phones and other voice-related devices to switch ports that belong to VLAN 2. Beginning in privileged EXEC mode, follow these steps to configure a port to receive voice and data from a Cisco IP Phone in different VLANs: Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Command configure terminal interface interface switchport priority default (0) switchport voice vlan (2) end show interface interface switchport Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Assign an IEEE 802.1p priority to untagged traffic that is received on the switch port. The Cisco IP Phone forwards this traffic through the native VLAN, VLAN 1. Instruct the Cisco IP Phone to forward all voice traffic through VLAN 2. The Cisco IP Phone forwards the traffic with an 802.1p priority of 5. Return to privileged EXEC mode. Verify the configuration. Configuring Inline Power on the Catalyst 3524-PWR Ports The Catalyst 3524-PWR XL switch automatically supplies inline power to connected Cisco IP Phones and Cisco access points if it senses no power on the circuit. If there is power on the circuit, the switch does not supply it. You can also configure the Catalyst 3524-PWR XL switch to never supply power to these devices and to disable the inline-power detection mechanism. Cisco IP Phones and access points can also be connected to an AC power source and supply their own power to the voice circuit. For information about configuring a switch port to forward IP voice traffic to and from connected Cisco IP Phones, see the "Configuring Voice Ports to Carry Voice and Data Traffic on Different VLANs" section on page 7-15. Beginning in privileged EXEC mode, follow these steps to disable the inline-power detection mechanism on a switch port: Step 1 Step 2 Step 3 Step 4 Step 5 Command configure terminal interface interface power inline never end show power inline interface configured Purpose Enter global configuration mode. Enter interface configuration mode, and enter the port to be configured. Permanently disable inline power on the port. Return to privileged EXEC mode. Verify the change. To enable inline-power detection mechanism on a switch port, use the power inline auto interface configuration command. 78-6511-08 Catalyst 2900 Series XL and Catalyst 3500 Series XL Software Configuration Guide 7-15