Dynamic Path Selection



Q-Balancer Dynamic Path Selection (DPS) enables organizations to fully-utilize all deployed bandwidth at each location. Using multiple WAN links concurrently has traditionally been difficult due to limitations in routing protocols. A branch network in a distributed enterprise often will have MPLS as a primary WAN link and an idle Internet link for backup. The Q-Balancer DPS eliminates the active/standby configuration as the deployment wastes a great deal of bandwidth. By intelligently distributing traffic across the available links, The Q-Balancer DPS turns the standby line into active one without the complexity of pure layer-three routing, and improves the reliability and performance for branch office applications.

As a core component of SD-WAN, the Q-Balancer DPS allows a network administrator to configure performance criteria for different types of traffic. By monitoring the level of latency, packet loss and other metrics, the Q-Balancer DPS allow packets to be directed to an optimal route or distributed across multiple paths. Based on which of the available paths meet these criterias, path selections are then made on a per-flow or per-packet basis. By using a combination of broadband technologies and MPLS in a software-defined WAN (SD-WAN) implementation, enterprise WAN backhaul will be offloaded as the Q-Balancer DPS dynamically routes cloud applications directly out to the Internet cloud from a site based on the metrics.

The Q-Balancer DPS also provides granular control and distribution for application flows across different paths. For example, you can create policies that would route business-critical traffic, such as voice traffic, through the MPLS network, while the rest of the traffic is load-balanced. Besides, you could also set policies to route the voice traffic over uplinks with the least amount of packet loss, while the other types of traffic can be routed to uplinks with the lowest latency.


  • Enhancing application performance
  • Improving business agility
  • Simplifying deployments for branch networks
  • Enabling service provider independence
  • Maximizing WAN reliability
  • MPLS offload
  • Reducing Internet cost by taking on low-cost WAN technologies