GlobaXT is a unique technology, which establishes a special dedicated virtual channel/link between the Globax compression server of the ISP and the customer.

GlobaXT is developed particularly taking into account specific issues related to satellite Internet access, such as packet loss and delay. Its features and abilities explain why it is so widely used among satellite Internet providers where usually satellite transponder capacity is fairly expensive. Significant to the customer improvements are overall acceleration of the browsing/download speed and the interactivity. Web pages and pictures are displayed much faster and the satellite channel usage as a whole becomes smooth.

For example, without GlobaXT, on an usual two-way satellite link (with approximately RTT delay = 600ms) it takes about 2.4 seconds to establish a connection with a web server (and then it usually takes about 1 minute to get all the details of the page - text, pictures, flash animation...etc). With GlobaXT the setup time (or the so called "TCP handshake") takes about 600ms.

The most valuable advantage of GlobaXT is its high level of compression over both the incoming and the outgoing traffic. We completed overall set of tests in REAL situations (at a small satellite ISP). For one hour GlobaXT compressed 124MB of outgoing traffic to 28MB !!!! The incoming traffic (the one coming from the satellite) showed compression ratio of more than 30%. Another issue to consider is that GlobaXT shows an excellent compression ratio for text files - close to 4 times (~380%). As a result, an ISP which possessed 512Kbps CIR (dedicated bandwidth) experienced an improvement/increase in their bandwidth of about 152Kbps.

Without GlobaXT the download:upload ratio is usually 5:1 or 6:1. With GlobaXT it jumps to 30-50/1. These incredible results make it possible to achieve very a fast download speed with tight and modest uplinks like dial-up and GPRS. Our performance tests showed that the optimal results for download:upload ratio are achieved when downloading large files.No more than 20 bytes per second are needed for 1Mbps download speed.

The second most valuable advantage of GlobaXT is its security mechanism. On broadcast media (like satellite - DVB) the customer's dish and the DVB card receive all the stream from the transponder which is equal to all the traffic. Then, based on the PID, the DVB card weeds out its own traffic. Hackers and other hostile individuals can take advantage of this peculiarity and "sniff" the traffic of other users. GlobaXT has its own format of encoding the downstream, which makes the life of the hacker/sniffer much harder.

Bear in mind that GlobaXT is NOT a http caching proxy/engine (like Squid, Microsoft Proxy Server / ISA Server, CacheFlow, Cisco CE Cache Engine and others). The core of the http caching engine consists in the fact that when an HTTP object (web page, file) is requested by a particular customer through the caching proxy, the caching proxy saves a copy of the object on its hard drive and later, if another customer requests the same object through the proxy, the caching proxy will get the object from its own hard drive rather than Internet thus saving bandwidth. GlobaXT is completely different. It uses a proxy just to rewrite the request of the customer.

You might test it and see for yourself by requesting an object that has never been requested through it before.

Another difference is that the caching proxies have a squeezing effect only over the HTTP traffic, while GlobaX is applicable for the TCP traffic in general.