2 VLANs in the same intrface?

[sugatada9]

Can we define assign 2 different VLANs in the same switch port?

for example:

interface gigabitethernet1/6

switchport mode access

switchport access vlan 1234

switchport voice vlan 5678

[Dragan Ilic]

For sure.

HTH,
Dragan

[John Blakley · Accepted solution]

Yes, but a phone that supports CDP will only work on the voice vlan. Otherwise, you wouldn't be able to pass data across the two vlans like this. The port would need to be configured as a trunk port.

HTH,
John

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[sugatada9]

Ok John...very good explanation. I think most Cisco IP phone support CDP today, so there shall not be any problem. But I will definitely check this.

[sugatada9]

Hi John, just wanted to know CDP helps here?