Cisco 3560G 48TS Software Configuration Guide - Page 300

Displaying Voice VLAN Chapter 14 Configuring Voice VLAN Beginning in privileged EXEC mode, follow these steps to set the priority of data traffic received from the nonvoice port on the Cisco IP Phone: Step 1 Step 2 Command configure terminal interface interface-id Step 3 switchport priority extend {cos value | trust} Step 4 Step 5 Step 6 end show interfaces interface-id switchport copy running-config startup-config Purpose Enter global configuration mode. Enter interface configuration mode, and specify the interface connected to the IP phone. Set the priority of data traffic received from the IP phone access port: • cos value-Configure the IP phone to override the priority received from the PC or the attached device with the specified CoS value. The value is a number from 0 to 7, with 7 as the highest priority. The default priority is cos 0. • trust-Configure the IP phone access port to trust the priority received from the PC or the attached device. Return to privileged EXEC mode. Verify your entries. (Optional) Save your entries in the configuration file. This example shows how to configure a port connected to an IP phone to not change the priority of frames received from the PC or the attached device: Switch# configure terminal Enter configuration commands, one per line. End with CNTL/Z. Switch(config)# interface gigabitethernet0/1 Switch(config-if)# switchport priority extend trust Switch(config-if)# end To return the port to its default setting, use the no switchport priority extend interface configuration command. Displaying Voice VLAN To display voice VLAN configuration for an interface, use the show interfaces interface-id switchport privileged EXEC command. 14-6 Catalyst 3560 Switch Software Configuration Guide 78-16156-01