Need assistance configuring VLANs on Dell 3548 PoE

Posted on 2009-04-21
Last Modified: 2012-05-06
Migrating to a VoIP solution.  Purchased a Dell 3548 PoE switch.  I need two (2) VLANs (VLAN 1 PC and VLAN 2 VoIP sets).  There is no need to route between VLANs.  All ports will carry both VLAN 1 and VLAN 2 traffic.  Should all ports be tagged to distinguish between VLANs?  The port VLAN modes are trunk, access, customer, and general.

By the way, what is a LAG?
Question by:Marangvi
    LVL 12

    Expert Comment

    Not sure about configuring the Dell switch but LAG = Link Aggregation or Port Channeling (as called by Cisco). Basically, it allows you to "connect" two ports from one switch to two ports on another and use the bandwith from both links.

    Maybe this can help:
    LVL 3

    Accepted Solution

    Well a port can only belong to one VLAN at a time if it's an access port. Trunk ports (used to carry vlan's between switches) can be assigned to carry whatever vlan you tell it to.

    Tagging only refers to marking the packets that belong to a particular vlan so the switch can determine where to send the traffic.

    Author Closing Comment

    If there is one wire to the desktop and the PC plugs into the network via the IP set, then how do put the PC and IP set on seperate VLANs?
    LVL 3

    Expert Comment

    Well, most IP phones act as a "switch" themselves and will tag the packets they send. The phone can tag it's traffic destined for the voice vlan, and the traffic it receives from the PC will not be tagged and will most likely be part of the default VLAN.

    If this is the case, then I believe you can make a trunk port on the switch that goes to the phones b/c the phone effectively acts as a switch as well. Just a two port switch. =]

    Hope that clarifies!


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    How your wiki can always stay up-to-date

    Quip doubles as a “living” wiki and a project management tool that evolves with your organization. As you finish projects in Quip, the work remains, easily accessible to all team members, new and old.
    - Increase transparency
    - Onboard new hires faster
    - Access from mobile/offline

    Suggested Solutions

    When posting a question about a Cisco ASA, Cisco Router or Cisco Switch, it can aid diagnosis if a suitably sanitised copy of the config is provided. It is much better to leave as much of the configuration as original as possible, as it could be tha…
    Every server (virtual or physical) needs a console: and the console can be provided through hardware directly connected, software for remote connections, local connections, through a KVM, etc. This document explains the different types of consol…
    Internet Business Fax to Email Made Easy - With eFax Corporate (, you'll receive a dedicated online fax number, which is used the same way as a typical analog fax number. You'll receive secure faxes in your email, fr…
    Polish reports in Access so they look terrific. Take yourself to another level. Equations, Back Color, Alternate Back Color. Write easy VBA Code. Tighten space to use less pages. Launch report from a menu, considering criteria only when it is filled…

    761 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

    Need Help in Real-Time?

    Connect with top rated Experts

    8 Experts available now in Live!

    Get 1:1 Help Now