About Q-LAN


Q-SYS leverages the Q-LAN protocol suite for audio and video distribution as well as device discovery, synchronization, control and management. Q-LAN is a collection of open, IT-standard protocols and solutions designed to allow Q-SYS to integrate easily with modern IT networks. Equally adept on either standalone or converged IT networks, Q-LAN relies on the performance of modern network switches to ensure real-time delivery and synchronicity of media streams across all connected Q-SYS devices.

During system installation, it is sometimes necessary to optimize the performance of network switches for use with Q-SYS by configuring QoS and other management functions in order to support real-time media distribution. To improve the deployment experience when installing your next Q-SYS system, while also saving time and money, QSC has several new networking options for the Q-SYS Ecosystem.

Select the option that best describes your installation needs

Plug-and-Play Setup

  • I’m installing a local AV network
  • I intend on using Q-SYS audio and video peripherals
  • I have limited experience with networking
  • I want a simplified installation experience



Option A

Larger Installations / Existing Enterprise Network

  • I’m installing into an existing infrastructure
  • I’m installing this on a large enterprise network
  • I intend on using Q-SYS audio and video peripherals
  • The IT team has preferred switch vendors

Option B

Manual Network Switch Configuration

  • I want to manually configure my network switch to operate with the Q-SYS Platform
  • I have experience with custom network configurations
  • I have successfully used this network switch on past Q-SYS deployments
  • I’m looking for a specific switch configuration example

Option C

Q-SYS NS Series
Network Switches

Q-SYS NS Series are a range of enterprise-grade network switches that have been pre-configured specifically to meet the performance requirements of the Q-SYS Platform.

  • Expedite Deployment - The NS Series network switches provide an out of box, plug-and-play networking solution for Q-SYS integrators looking to install local AV networks. 
  • AV Infrastructure for Today’s Modern AV Ecosystem and Beyond – QSC has paired rock-solid Dell EMC network switches with finely tuned switch configurations, created by QSC, meant to ensure your AV infrastructure will support the expansion and evolution of your Q-SYS system for years to come.
  • Flexible Network Scenarios – NS Series network switches support Q-LAN, AES67 and Dante audio streams, in addition to Q-LAN video streaming and distribution simultaneously within the same VLAN without the need for manual configuration of switches or end-point devices.

Q-SYS NS Series

Independent Network Switch Qualification

For deployments where the Q-SYS NS Series network switches are not suitable, QSC now offers independent network switch qualification services through the University of New Hampshire InterOperability Laboratory (UNH-IOL), an independent provider of broad-based testing and standards conformance services for the networking industry.

The lab features a newly defined Q-SYS network protocol test suite, offering a complete test and validation of your network switch within the entire Q-SYS ecosystem. This is recommended if you are deploying Q-SYS on a converged network and need to verify that your network switch meets the performance needs of Q-SYS.  Contact the UNH-IOL for more details.


UNH-IOL InterOperability Lab

Additional Supporting Documents

QSC also offers a number of switch configuration examples* intended to act as guidelines for setting up your Q-SYS network, a collection of Q-LAN supporting documents, as well as a list of switches with known incompatibility/poor performance issues.

*Please note: these switches have not been qualified by UNH-IOL and QSC will not be able to provide advanced support on these network switches.

Network Support Policy and Tech Tips

  • Please explore the Q-SYS Networking Support Policy before contact QSC customer support regarding network support.
  • Quality of Service (QoS) and latency are vitally important when using Q-SYS to transport audio and video across the network. However, if there are edges of your network that are only being used to transport Q-SYS Control data (for example, if you have a particular switch on your network that is only providing control transport for Q-SYS touch screen controllers and/or networked third-party projectors), then QoS and latency become less of an issue at which point you may find you can use a switch that does not meet ALL Q-LAN requirements.  
  • IGMP snooping may not be required if there are no high-bandwidth multicast services running on the network.
  • If IGMP snooping is enabled, one and only one switch or device must be enabled as IGMP querier.
  • In some situations, it can be easier to manage your network if Q-LAN, Dante, AES67 and Q-SYS Video Streams are separated into different VLANs. The Q-SYS NS series of network switches does not require that these media types are separated, they can share the same VLAN. 
  • Q-LAN packets can be configured to carry ‘Audinate’ DSCP markings such that a single QoS queue can be created for PTPv1/v2 and another for audio packets.
  • PTPv2 can be disabled on the LAN B ports of Q-SYS Core processors if those ports are required to be placed on corporate infrastructures for softphone interfaces, etc. where PTPv2 is not required.