General WAN Bandwidth Aggregation Questions

What is bandwidth aggregation, and how does PowerLink™ handle it?
Bandwidth aggregation brings together multiple Internet lines to achieve a virtual high bandwidth WAN line. This avoids the high expense and single point of failure of having to purchase an expensive single line for Internet connectivity. For example, if you have a T1 line and need additional bandwidth you would typically have to migrate to a T3 line. This would take you from your current 1.5 Mbps to 45 Mbps. This is probably significantly more bandwidth than required and is a dramatic increase in cost. With the PowerLink, this same scenario can be accomplished with two 768 kbps DSL lines that can be combined for a total aggregated bandwidth equivalent to a T1 at a fraction of the cost. With PowerLInk you can simply add multiple low-cost lines such as DSL, cable, wireless etc. and gain redundancy for your Internet connectivity, having a relatively small increase in cost and more closely matching your needs. In addition to getting more cost-effective bandwidth, you are also dramatically increasing the reliability of your connection due to the new levels of redundancy in your aggregated Internet connection. The PowerLink 100 is independent of the WAN technologies and is fully compatible with xDSL, cable, wireless, T1/E1, T3/E3, satellite, fiber channel, Frame Relay, etc. (You can mix and match). The total bandwidth aggregation capacity of the PowerLink 100 allows for up to 150 Mbps and will accept up to 15 different WAN connections. Further, the PowerLink 100 has the ability to host over 128 domain names with up to 128 hosts per domain name. The PowerLink 250 supports up to 500 domain names.

What are DoS and DDoS protection?
A denial-of-service attack (DoS attack) is an attempt to to prevent an Internet site or service from functioning efficiently or at all, temporarily or indefinitely. A distributed denial of service attack (DDoS) occurs when multiple compromised systems flood the bandwidth or resources of a targeted system, usually one or more web servers. PowerLink implements sophisticated anti-DoS and DDoS mechanisms for DDoS protection. These feature allows for the prevention and blocking of a wide variety of denial of services attacks including basic and distributed attacks. Other features include support for anti flood ping, ping of death and spoofing.

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