Phone Systems

Previous Thread
Next Thread
Print Thread
Rate Thread
Joined: Feb 2017
Posts: 23
Member
OP Offline
Member
Joined: Feb 2017
Posts: 23
So I have a better understanding, is anyone able to explain the WAN and PC port VLAN tagging on the Yealink phones for me.
I understand the VLAN tagging for the WAN port so that the phone will communicate to on the voice VLAN setup for voice traffic.

But for the PC port VLAN tagging, does the PC not pickup the data VLAN association when it negotiates on the network?
Wouldn't the PC receive this information when it connects to the network? Or does the PC port NEED to be tagged with the data VLAN so that the PC is able to communicate on the data VLAN and receive its DHCP information from the data VLAN?

I am trying to understand this better. My understanding leads me to think that the data traffic sent from the phone to the network is received at the router/switch without VLAN tagging.
But does the phone send all traffic on its WAN port with the VLAN tag set on the WAN port unless you specifically call out data traffic on the PC port to be tagged with a separate VLAN (i.e. the PC port tags traffic with the appropriate VLAN prior to sending traffic out the WAN port of the phone).

If more clarification of my question is needed, please ask and I will try to explain/ask more clearly.
Thanks!


EMP & Lightning Home Surge Protection
EMP - Click Here!
Joined: Jan 2009
Posts: 800
Member
Offline
Member
Joined: Jan 2009
Posts: 800
I think of it as this:
You have one VLAN for data (VLAN 1 for example) and one VLAN for voice (VLAN 2 for example).

Many providers/installers like to separate this voice and data traffic, and it is definitely recommended on large deployments. If there are separate drops for voice and data, it is easy to segregate your traffic. However many times, there may only be one data drop available, which is where the VLANS come into play. To pass more than one network down a wire/drop, at least one (or both) must be tagged. So oftentimes, the voice traffic will be tagged and the data traffic left untagged. Then when a user plugs in a phone, the network (usually through the use of the LLDP protocol) will tell the phone as it is booting up, that its voice traffic is on tagged VLAN 2, and to simply pass untagged (data) traffic thru.

Joined: Oct 2004
Posts: 1,480
Member
*****
Offline
Member
*****
Joined: Oct 2004
Posts: 1,480
This lets you hard code in the LAN port in the event you would need to just as you can do with the WAN port. That way someone couldn't walk up to plug something in and get direclty on to a say Production VLAN or the likes if maybe the phone was in a warehouse or common area.


Moderated by  Professor Shadow 

Link Copied to Clipboard
Most Recent 5 Post
Summit 800 (9224 Phones) Solid Hold Light
by Keith Janssen - 01/25/21 09:42 PM
Outgoing ANI
by Andyreed - 01/24/21 02:52 PM
Fiber Equipment Installation
by dexman - 01/22/21 11:10 PM
8300 with UCB voicemail to email issue
by Rob Jordan - 01/22/21 06:45 PM
Power unit/interrupter issues
by Telephonemaven - 01/22/21 01:44 AM
Who's Online Now
32 members (Curlycord, nortelvoip, dexman, MooreTel, jeffmoss26, Touch Tone Tommy, justbill, JBean3329, bttirc, Keith Janssen, msnell, metelcom, jknichols, teletron, hitechcomm, morephones, jab1780, bdunne, sketchypro, diehard, Joe Talbot, nonameyet, MartinE, Scotty Woods, KRRath, Bob3470, nfcphoneman, grich, newtecky, skip555, pvj, Rob Jordan), 542 guests, and 67 robots.
Key: Admin, Global Mod, Mod
Popular Topics (Views)
Forum Statistics
Forums94
Topics94,196
Posts638,627
Members49,403
Most Online5,661
May 23rd, 2018
Today's Birthdays
dcttech, George/wa2vnv, telesalesrep
Newest Members
AleGor, Schreiber, RotoTech99, corkie, FixYaBrokeStuff
49,402 Registered Users
Get Tech Support Now! Click the banner below
Get Tech Support Now!
Top Posters (30 Days)
dexman 33
Yoda 19
Bluewater Sailing
https://www.patreon.com/bePatron?u=5256033
EMP Shield for Commercial - Home & Vehicle
Use Coupon code SAVE - Click Here!
Sold AD
Servpro Ventura 24-Hour Emergency Service
Free Estimates call us now 24Hours
Contact Us | Telephone System Tech Support | Terms of Service

Sundance Communications is not affiliated with any of the above manufacturers.
©Copyright Sundance Communications 1998-2021
Trusted Partners