Catalyst 2912/2924/3524/3548 with IP Telephony

[rdubo]

Hi,

I have to put IP telephony on a lan that is made of old catalyst. Is it possible tomimplement VLAN (voice vlan) and QoS on these switches (2912/2924/3524/3548°?

Regards

Romain

[Prashanth Krishnappa]

In XLs, you will need to configure all ports to be Trunks to support voice VLAN. Here is a sample config

interface FastEthernet0/1

switchport trunk encapsulation dot1q

switchport mode trunk

switchport trunk native vlan 10 <<---Data VLAN

switchport voice vlan 72 <<--- Voice VLAN

spanning-tree portfast

XLs have limited QoS capabilities

http://www.cisco.com/warp/public/473/139.html