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Santa Clara, CA /USA, 11/04/04
Propel Internet Accelerator for ISPs Released in Version 5.0
Unlike most of the industries internet accelerators to be installed on dial-up computers at home, the Propel internet accelerator shall to be installed as well on provider side as on client side.
While installing a so called internet accelerator on client side only at a ppp dial-up machine can be generally thought about as just a systematic fraud using the users lack of knowledge, the internet acceleration topic becomes more complex, when there is also software installed at the provider side.
An initial overview of existing standards to speed up internet connections by compressing trasmitted data may give a short look into the ppp extension PPP CCP (Point-to-Point Protocol Compression Control Protocol. By default, clients will use compression algorithms the ISP offers, so there is no need to installspecial software for this on client side. The reason for ISPs not using compression protocols is obvious, users pay per minute, but providers pay usually per byte or per line, so when a user get's more bytes per minute, the provider has higher costs for the traffic at his connection side. Good in data compression on ppp level is, that it is independent of the service used. Not effective is this method on compressed data like JPEG images, MPEG audio or video data, here the overhead for additional compression will more likely result in a performance loss then a performance gain.
Another way to speed up internet usage is caching, this technique is very common and implemented in almost all browsers. Proxy servers like squid fulfill this task almost perfectly. Proxy servers can also fulfil the task of filtering data so the valuable bandwidth will not be wasted for advertizing banners for example. Caching just describe algorithms that once transmitted data will be stored for a while, just in case they will be needed again. So, an image on a webside will be stored on the client side at the first visit to the web site, but taken from the local client side on the second visit of the same web site if the image wasn't changed. So less data has to be transmitted over the network to see the same website the second time and therefore the website loads faster. As the performance bottleneck is seen on user connection side and not on side of the web server, the caching mechanisms need need to be done on client side. Caching on ISP side is just a benefit for the ISP as he doesn't has to reget all data from the original web server, the ISPs traffic bill will be reduced. Benefit to gain preformance by caching is, that it has no negative impacts, caveeats are, that caching needs to be done seperatedly for each protocol and that caching works only, if data are used two or more times.
Another way used by propel is to reduce the data quality - so instead of seeing a high resolution image, users get to see a low resolution image. The data reduction has to be performed in the ISPs proxy to make it happen before the data is trasnitted through the narrow ppp line to the user and means really less quality for the user.
Another way promised by some internet accelerator vendors to gain performance is to tune the modem driver. If it would be that easy toget more out of a modem, vendors would deliver the driver anyway, a driver named internet accelerator would make us very sceptical.
After these introductional words, here's the press release from propel:
Propel Software Corporation (www.propel.com), the most popular Internet acceleration provider, announced today that it has developed a new accelerator – Propel Accelerator 5.0 – that delivers the highest quality web images and gives users the fastest acceleration in the industry. Featuring Propel's proprietary implementation of next generation compression, Propel Accelerator 5.0 is being previewed here at the ISP industry's largest annual conference. Propel Accelerator 5.0 will be available for ISPs later in November and current Propel Accelerator service subscribers will be able to download the free upgrade in early December. Propel Accelerator solutions are now deployed by more than 60 percent of the top U.S. ISPs that offer accelerated service.
"Propel Accelerator 5.0 establishes a new standard of performance for acceleration because it proves that you can deliver the highest acceleration and still deliver more of the original image quality than competitors offer," said Steve Kirsch, chairman and founder of Propel. "ISPs using Propel Accelerator 5.0 can offer a higher quality Internet experience with their accelerated service. By giving subscribers more speed and higher quality web images, ISPs can offer a compelling value to their dial-up and low-speed broadband subscribers."
Propel Accelerator 5.0 features a significant increase in overall Internet acceleration and an average of 24 percent improvement in image acceleration at the fastest speed settings. As a result, Propel Accelerator 5.0 delivers the highest quality images of any acceleration solution. Using proprietary implementation of wavelet compression technology and other new acceleration techniques, Propel provides rich web page graphics during compression at the fastest acceleration settings.
"Propel continues to be both the market leader and the performance leader," said Dean Tucker, president and CEO of Propel. "We have set a new standard in acceleration performance and we continue to deliver to large and small ISPs the highest quality, the best value and the strongest performance of any acceleration provider."
Other new features and improvements in Propel Accelerator 5.0 include accelerated sending of email and attachments, new acceleration support for the IMAP email protocol, improved text and image compression, plus improvements in the end user Performance Meter. Propel Accelerator 5.0 also includes new features in its server software that gives ISPs and other service providers even greater control over their data traffic, network integration and ad blocking.
The new acceleration and image quality features in Propel Accelerator 5.0 will be integrated into all three of Propel's acceleration products, including its client software, Propel Accelerator; its fully managed and hosted service for ISPs, Propel Complete; and its licensed server software for ISPs deploying their own service, Propel Acceleration Service.
Propel Accelerator 5.0 Client software features
The client software for Microsoft Windows has several news features, including:
* An average of 24 percent improvement in image acceleration over Propel Accelerator 4.1
* Accelerated sending of email and attachments
* New acceleration support for the IMAP email protocol
* Improved image compression for smaller, faster and sharper images, using a new proprietary compression algorithm
* Improved text compression for smaller and faster lossless compression
Propel Accelerator Server software features
The server software for Propel Accelerator 5.0 also has several news features which enhance data traffic and network operation, including:
* Multiple RADIUS server enhancements
* Customizable pop-up white list propagation
* SMTP server designation of specific servers for transmission
* New client performance statistics logging
* Customizable email and web connection timeout
Link provided: http://www.propel.com/products/index.jsp
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