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Table of Contents
1 Voice VLAN Configuration························································································································1-1
Voice VLAN Overview·····························································································································1-1
How an IP Phone Works················································································································· 1-1
How Switch 4500 Series Switches Identify Voice Traffic································································1-3
Setting the Voice Traffic Transmission Priority ···············································································1-3
Configuring Voice VLAN Assignment Mode of a Port·····································································1-4
Support for Voice VLAN on Various Ports·······················································································1-4
Security Mode of Voice VLAN·········································································································1-6
Voice VLAN Configuration······················································································································1-7
Configuration Prerequisites·············································································································1-7
Configur ing the Voic e VLAN to Ope rate in Aut omatic Voic e VLAN Assig nment Mode ··········1-7
Confi guring t he Voic e VLAN t o Opera te in Man ual Voi ce VLAN Assign ment Mod e·········1-8
Displaying and Maintaining Voice VLAN·······························································································1-10
Voice VLAN Configuration Example·····································································································1-11
Voice VLAN Configuration Example (Automatic Voice VLAN Assignment Mode)·······························1-11
Voice VLAN Configuration Example (Manual Voice VLAN Assignment Mode)···································1-13