IP phone configuration difference on the switch

Unanswered Question
Jan 28th, 2008
User Badges:

if we need configure the port on the switch to allow voice traffic and data traffic, we have 2 kinds of configurations:

confgiure1:

switchport voice vlan 2

switchport mode access

spanning-tree port fast


configuration2:

switchport trunk encap dot1q

switchport mode trunk

switchport trunk native vlan 1


can both these 2 work? what is the difference ?

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 4 (1 ratings)
Loading.
royalblues Mon, 01/28/2008 - 07:08
User Badges:
  • Green, 3000 points or more

The thing to understand is that you require a trunk port to carry more than one vlan i.e voice and data


Now the first config definitely works woth Cisco phones as they use CDP and dynamically negotiate a trunk.


The 2nd option is mostly used with other vendor phones like Avaya, nortel etc which requires us to set the port as trunk to carry both data and voice vlan


HTH

Narayan

Actions

This Discussion