From: GokhanS@koc.net
Date: Mon Nov 10 2003 - 12:12:29 GMT-3
Hello,
In Cisco 3524 Switches , the port has to be a trunk port for voice vlan.
But in 3550 Series , it is not mandatory.
So For 3550 ;
The following options can be solutions :
1- )
interface FastEthernet0/11
switchport access vlan 5
switchport voice vlan 100
switchport trunk encapsulation dot1q
2-
interface FastEthernet0/11
switchport trunk encapsulation dot1q
switchport trunk native vlan 5
switchport mode trunk
switchport voice vlan 100
3-)
interface FastEthernet0/11
switchport access vlan 5
switchport voice vlan 100
switchport mode trunk command is the key here ;
If you set the port to trunk , data will be put to native vlan which is 1 by default.So you have to use switchport trunk native vlan 5 in order to assign data vlan to 5.
If you set the port to access , you have to use switchport access vlan 5.
Hope this clarifies,
Gokhan
#12161
-----Original Message-----
From: Adminl@kuix.com [mailto:Adminl@kuix.com]
Sent: Wednesday, November 05, 2003 9:17 PM
To: ccielab@groupstudy.com
Subject: Voice vlan with native vlan
Dears..
I know we talked too much about this issue..but still some people confused and dont know what is the last solution ..
If we have IP Phone is attached to port Fa0/11on SW. This phone supports dot1q trunking. Configure fa0/11 to support voice on VLAN 100 with name VOICE, and ensure that data goes to VLAN 5.
Q1-Which solution is right? A or B?and why?
Q2-which case can I use A ?
and which case can I use B?
Solution (A)
interface FastEthernet0/11
switchport access vlan 5
switchport voice vlan 100
switchport trunk encapsulation dot1q
OR
Solution (B)
interface FastEthernet0/11
switchport trunk encapsulation dot1q
switchport trunk native vlan 5
switchport mode trunk
switchport voice vlan 100
Thanx..
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