Data and Voice VLAN Configurations

Defining exactly how to configure the data/voice multi-vlan port can be full of self-questioning. I started to write my interpretation of how this should be done with this blog entry, but must really defer to what seems to be the mother of all voice/data vlan blog entries.

If you have not taken the time yet to read the above blog entry by Scott Morris, please do! It is an excellent discussion of the various configurations that have been used, with Cisco IP Phones, or even non-Cisco IP Phones.

** Dynamic port **
switchport access vlan 1
switchport voice vlan 2

** Access port **
switchport mode access
switchport access vlan 1
switchport voice vlan 2

** Trunk port **
switchport mode trunk
switchport trunk native vlan 1
switchport voice vlan 2
switchport trunk allowed vlan 1,2

Of all the above, the simpler and safer way is the “access port” config, where you dont have to mind the trunk security, and yet the port is statically set as an access port, and wont trunk anything else than the voice vlan.