Increasing Site-to-Site Network Capacity & Reliability
Site-to-site network is mostly created based on leased lines or MPLS, both of which are still costly. To reliably connect corporate network and branch offices together, lots of enterprises spend large amount of money for these services. The following are some of the challenges faced by the enterprises: 

  • The cost for MPLS and leased-line services can be times of the cost for business-class broadband Internet service.

  • When more bandwidth is required in order to accommodate the increasing demand, this could mean expensive upgrades, or change of WAN infrastructure sometimes.

  • The traditional site-to-site network connectivity is based on a single Internet circuit. Should the circuit fails, there is no way to backup the connectivity between the locations.

>Packet-Level Bandwidth Bonding

In the diagram illustrated above, three 1Mbps WAN connections are deployed at branch, while a high-speed Internet connection is connected to HQ network. Q-Balancer appliances at both HQ and branch locations work together to aggregate the bandwidth in between. With XBond (bandwidth bonding technology), the appliances are linked together via the proprietary tunnels and intelligently distribute traffic by packet across all available tunnels. This bonding technology combines bandwidth for site-to-site circuits and make the bonded circuit work like a virtual leased line. The increased bandwidth theoretically equals to the sum of the separate connections. In this case, bonded bandwidth would provide 3 Mbps (1*3) bandwidth.

The technology of packet-level bandwidth bonding enables enterprises to replace expensive leased line or MPLS services with low-cost broadband connections. The replacement provides similar level of Internet quality to multi-office enterprises, yet it helps significantly reduce WAN cost since day one. When the demand grows, enterprises can flexibly add more links for more bandwidth. In the event of link failure, the solution diverts site-to-site traffic to the remaining active path(s) without sessions dropped.

Top Benefits

  • Increased site-to-site WAN bandwidth capacity with multiple links

  • Higher levels of performance for business-critical applications

  • Maximized site-to-site WAN reliability

  • Service provider independence

  • Cost reduction through leveraging low-cost broadband Internet connections