Bandwidth Bonding

Packet-Level WAN Bonding

Q-Balancer's patent-pending XBond Technology is a packet-level WAN bonding technology, which is able to combine multiple Internet connections into a virtual single connection and makes the bonded WAN links work like a leased line. The increased bandwidth theoretically equals to the sum of the separate connections. For example, 3*4Mbps WAN links would provide 12Mbps of bandwidth by using Q-Balancer to aggregate bandwidth.

The packet-level WAN bonding through XBond technology provides increased WAN capacity and failover between multiple broadband lines to increase productivity and improve WAN availability. Businesses enjoy leased line-like WAN capacity at a fraction of the cost of traditional business leased lines.


Cellular WAN Bonding

Q-Balancer enables remote and branch offices to enjoy more reliable and accelerated WAN connectivity everywhere as cellular connectivity technologies continue to progress faster and more reliable. Our Multi-Cell Branch Router can be incorporated with up to four 4G LTE modules. Each of 4G LTE modules onboard is connected with advanced antenna. This combination helps provide industrial-grade 4G LTE connectivity, extend the network coverage, and turn dead zone to live zone.

Q-Balancer offers undisturbed data transfer and facilitates remote maintenance with its ability to failover between multiple 4G LTE and broadband lines. This is helpful for the remote and branch offices where ADSL might not be available. Moreover, it is capable of achieving highest WAN performance with XBond bonding technology, which efficiently distributes traffic across multiple WAN links with its intelligent algorithms. This offers resilient and high quality video transmission anytime and anywhere.


VPN Bonding

Large files and applications such as VoIP and Video Conferencing are frequently transmitted in site-to-site VPN networks, which are usually connected via leased line or MPLS or VPN. Ensuring mission-critical applications to be allocated with enough bandwidth and to gain uninterrupted connectivity in site-to-site networks is a major task for IT department.

VPN and leased line networks are traditionally established based on a single Internet circuit. Should the circuit fails, there is no way to keep the continuity for the organizations. In addition, if more bandwidth is required to accommodate growing demand, this is possibly difficult to achieve through traditional WAN load balancing technology. This could mean expensive upgrades or change for legacy WAN infrastructure.

Our XBond bandwidth bonding technology is able to work on static IP, dynamic IP, and even private IP, and can be integrated into existing VPN networks with minimal impact. In the event of an Internet line fails in a site-to-site VPN network, XBond will still keep VPN connectivity up and running by sending traffic down to the remaining active line. The technology also maximizes site-to-site WAN capacity by efficiently bonding multiple Internet lines at sites.


  • Increasing WAN performance and agility for distributed networks
  • Simplifying deployments for branch networks
  • Enabling service provider independence
  • Maximizing reliability
  • Building fast and unbreakable branch connectivity everywhere
  • Reducing WAN cost