Solutions

Virtual Bonding

Cost Effective Infrastructure Optimization

As bandwidth demands skyrocket, mobile operators face tough choices. Expensive and constant infrastructure upgrades lower profitability and raise prices for subscribers – negatively impacting satisfaction and increasing churn.

Now, infrastructure optimization solutions from Celtro offer the golden path for mobile operators. Based on unique Virtual Bonding™ technology, Celtro infrastructure optimization solutions increase backhaul network capacity with high bandwidth and low-cost alternatives such as DSL lines or WiMAX services.

How does it Work?

Celtro's Virtual Bonding technology is a state of the art bonding solution for any physical interface or transport technology. Unlike traditional bonding, Virtual Bonding allows traffic bonding over heterogeneous links - transport technologies (E1 and Ethernet) and infrastructure (XDSL, microwave, and fiber).

Virtual Bonding joins physically separate links from different networks into one virtual backhaul entity with higher bandwidth - equal to the accumulated rates of the various links. Virtual Bonding can bond diverse ADSL2+, SHDSL, VDSL2, traditional E1s, and Ethernet microwave links into one high-capacity backhaul entity suitable for HSPA traffic between the cell site and the RNC.

Virtual Bonding transports the single HSPA traffic flow over the bonded links based on link priority and available throughput. At the egress, the HSPA flow is reassembled, maintaining the original order. Delay is aligned to prevent jitter, and HSPA traffic flow is delivered to its destination. Virtual Bonding also provides load sharing between the different bonded links, enabling traffic protection in case of link degradation or failure.

 Typical Application

A simple application of Virtual Bonding is the scaling of offload architecture to support HSPA. In a typical offload solution in Europe, HSDPA traffic is offloaded cost-effectively by means of ADSL2+ or VDSL2. Celtro's Virtual Bonding, however, can bond multiple ADSL2+/VDSL2 interfaces to cost-effectively provide up to 100Mbps backhaul capacity for every cell site.

Virtual Bonding Benefits

• Increased peak rate delivery for better suscriber QoE
• Lowers backhaul network CapEx and OpEx by deferring infrastructure upgrade expenditures
• Cost-effective backhaul scalability based on available low-cost links
• HSPA traffic over low-cost links (ADSL2+/VDSL with E1s for higher upstream rates)
• Load sharing for traffic protection against single-link degradation or failure