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Voice VLAN and QoS for ProCurve Switch

Occasional Advisor

Voice VLAN and QoS for ProCurve Switch

Hi all,

for a customer we need to implement Voice Cisco Phones on HP Switches 2524 and 1920. On Each VoIP Phone there is also a PC connected which should be assigned to the data vlan. There should also a dedicated Voice VLAN available. 

My questions:

  1. How to configure the edge ports for the IP Phones and the data vlan? Should the voice vlan tagged and the data vlan untagged? 
  2. What is best practice recommendation, when the VoIP Phones mark packets with dscp ef and the data vlan should be leave with default value 
  3. Do the uplink ports change the dscp or cos mapping / marking?