Augmenting Connectivity and Reducing WAN Costs and Complexibilities 

>  Legacy WAN
MPLS is a widely deployed, reliable and secure technology for building a fixed-path VPN over an IP network between branch and head offices. However, when it comes to SaaS or branch-to-branch applications, MPLS architecture seems to lack the agility and flexibility. Adding bandwidth to a MPLS is costly as the service itself is an expensive service, and thus, meeting the bandwidth requirements and keeping up the IT budget are sometimes hard to make a decision. Moreover, with MPLS service, it is highly impossible to provide network connectivity to pop-up stores, mobile offices or temporary projects.

Legacy WAN

> Hybrid WAN
To remedy the drawback of MPLS, an enterprise WAN composed of multiple transports is increasingly common today. Perhaps this WAN configuration already helped leverage both MPLS and broadband circuits at all business locations, and gave increased application performance by defining the usage for WAN transports based on types of traffic. However, it comes with some downsides, including possible inefficient use of bandwidth and session drop on failover. Besides, dynamically selecting the optimum path for every application is still a unsolved challenge in this case.

Hybrid WAN

> WAN Virtualization
W
AN Virtualization combines multiple WAN connections of any type, to create a single virtual pipe. This combines MPLS WAN and low-cost Internet broadband bandwidth (e.g. cable, DSL, 4G LTE), to augment or replace individual private WAN connections. WAN Virtualization enables a more open, reliable, resilient, agile and cost-efficient enterprise WAN, and achieves excellent application performance and reliability even with congestion events.

Flexible and Scalable – All WAN can be set active based on policy routing. Enterprise can flexibly employ broadband technologies to expand network capacity, while reserving the expensive private lines bandwidth for critical applications. Also, the capability of combining hybrid WAN networks enables the branches to access headquarters at a greater speeds than via a single link, and to increase bandwidth capacity by adding broadband lines when needed.

Best Path Is Always Selected – With Q-Balancer Hybrid WAN, enterprise is able to direct business-critical applications to MPLS networks, while sending non-critical traffic across the Internet VPN. Whether the link is MPLS or broadband, business-critical applications will be steered across the WAN links with lowest packet loss and latency. Policies can be put in place to have latency-sensitive applications such as VoIP to get highest priority and be transmitted over the network links with the lowest packet loss and latency. The mechanism makes the critical applications run over the best possible path(s).

MPLS Offload – Cloud applications can be sent to the public cloud via the aggregated broadband circuits, delivering the maximum possible capacity, while latency-sensitive application such as VoIP and Video can be transmitted to corporate network via MPLS lines, which comes with lowest packet loss and latency.

Lower Upfront Investment – Money can be wasted on expensive MPLS bandwidth in order to cope with the unexpected and uncertain traffic spikes in a traditional hybrid network, where MPLS line works as a primary circuit and broadband line works as a standby backup. With the Q-Balancer solution, traffic can be sent over the combined capacity of MPLS and broadband lines. Besides, later on, bandwidth can be upgraded quickly by adding more public Internet links, which are cheaper and comes with more bandwidth capacity.

Data Security – The Q-Balancer VPN includes 128- or 256-bit AES encryption to prevent packets on a public Internet circuit from being read or modified. Plus, the Q-Balancer solution chops encrypted VPN session into packet level, and then sends the packets across multiple Internet circuits, and reassembles the packets at the receiving end. This makes it virtually impossible for hackers or intruders to trap data and decrypt confidential information.

Top Benefits

  • Uninterrupted public and private cloud connectivity with WAN resiliency

  • Faster application delivery with efficient utilization of WAN bandwidth

  • High flexibility and scalability to avoid overprovision 

  • Assured delivery for business-critical applications as best path is always selected

  • Lower CAPEX and OPEX

  • Uncompromised data security