Cisco vlan voip native

Posted on 2013-11-27
Medium Priority
Last Modified: 2014-01-30
Please can anyone direct me to setting up 2 vlans on a cisco 2960 S 48 port switch.

I need to move ports off the defualt vlan into the NATIVE   DATA vlan   and then create trunks to pass   untagged data  and tagged voice traffic through.

the voice vlan are using ip phones (non cisco)

The reason this is delicate is that i have inherited a system where they are running phones and computers on a flat network with no vlans etc.

keep losing voice

thanks kindly
Question by:Maphew
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions

Expert Comment

ID: 39681350
how are your pcs connected? Are they connected to the back of the phones or is everything running directly to the wall jack?

Assisted Solution

vmagan earned 1200 total points
ID: 39681376
to configure a voice vlan on the switch do the following:

Switch2960#conf t
Switch2960(config)# vlan10 (put in any number you want here)
Switch2960(config-vlan)#name VOICE
do a sho vlan brief. THis should show a newly created Voice Vlan with no ports assigned to it.

now add the ports to this vlan. You can do a range or one at a time.
Switch2960# conf t
Switch(config)#interface range fa 0/2 - 22 (example)
Switch(config-if-range)#spanning-tree portfast
Switch(config-if-range)switchport voice vlan 10
Switch(config-if-range) end
sho vlan brief
now the new vlan should have the ports that are directly connected to the phones displayed here.
LVL 79

Assisted Solution

lrmoore earned 400 total points
ID: 39682518
>the voice vlan are using ip phones (non cisco)
So, here's how:

create the vlan's
vlan 10
 name data
vlan 20
 name voice

interface gig 1/0/1
 switch mode trunk
 switch trunk native vlan 10
 switch voice vlan 20

That's it!
Get your Disaster Recovery as a Service basics

Disaster Recovery as a Service is one go-to solution that revolutionizes DR planning. Implementing DRaaS could be an efficient process, easily accessible to non-DR experts. Learn about monitoring, testing, executing failovers and failbacks to ensure a "healthy" DR environment.


Author Comment

ID: 39684060
Thanks again, however how do i make sure that the new data vlan is a native vlan hence not tagged ?

Assisted Solution

vmagan earned 1200 total points
ID: 39686258
Yes make the data vlan the native.

conf t
inter vlan 10 (data vlan)
switch trunk native vlan 10 (this is the cmd that makes it happen)
LVL 79

Accepted Solution

arnold earned 400 total points
ID: 39688299
Your switch might be configurable to assign a VLAN based on the MAC address of the device.
i.e. without locking the switch ports as is done in the example.
ie. the default VLAN is data, when an IP Phone is connected, that port is auto tagged as a Voice VlaN.
You should also setup a QoS to prioritize voice traffic wheher it is VLANed or flat.


Author Closing Comment

ID: 39820250
Thank you guys, i really appreciate your help

Featured Post

Free Tool: Path Explorer

An intuitive utility to help find the CSS path to UI elements on a webpage. These paths are used frequently in a variety of front-end development and QA automation tasks.

One of a set of tools we're offering as a way of saying thank you for being a part of the community.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

As companies replace their old PBX phone systems with Unified IP Communications, many are finding out that legacy applications such as fax do not work well with VoIP. Fortunately, Cloud Faxing provides a cost-effective alternative that works over an…
Why do some people recommend buying business VoIP from an ISP? What are the benefits to my company? What are the costs?
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
After creating this article (http://www.experts-exchange.com/articles/23699/Setup-Mikrotik-routers-with-OSPF.html), I decided to make a video (no audio) to show you how to configure the routers and run some trace routes and pings between the 7 sites…
Suggested Courses

777 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question