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26 June, 2001 – The Danish Royal Library has deployed CacheFlow’s cIQ server accelerator to reduce download speeds on Internet content and reduce costs on providing public access to free Internet services and licensed web content.

The Royal Library has more than 800 workstations connected to the Internet through a 34Mbps Internet connection to the Research Net (Forskningsnettet), a common network service for research institutions in Denmark. Until early 2001, this service was provided free of charge but when Research Net decided to start charging institutions based on usage it became necessary for the Royal Library to reduce costs. This was achieved by reducing download speeds and consequently the duration users spent on-line to access information.

“Our expenses for traffic resulting from user searches involving international data sources have risen, and this could easily have become a very large item on our budget. With the cache we can keep this expense under control. All the searches go through the cache and it stores a lot of the information people want. This means we can avoid using the Research Net for every foreign request,” said Martin Schou Larsen, section leader in the IT department at the Royal Library.

Erik Varn Semey, Product Manager at Eterra, the integrator which installed the CacheFlow solution at the Royal Library explains why they deployed a caching solution rather than increasing bandwidth to speed Internet access. “Many companies make the mistake of assuming they have to invest in a lot more bandwidth to achieve a faster Internet connection. This is certainly not the optimal solution as the distance to the web content will, of course, be the same. And this is where the cache server comes into the picture. It reduces the distance to the content by moving it closer to the user. In this way it automatically reduces the response time. In fact, our experience from other large companies shows a CacheFlow cache server can reduce response times by up to 80 percent”.

Heine Jeppesen, network administrator at the Danish Royal Library did not expect the CacheFlow 645 Internet Cache Server to have much effect. “Thirty-four megabits per second is a lot, and I had trouble imagining the performance could be improved. But I was very positively surprised. The CacheFlow solution has given us a much faster Internet connection without any complications. Even after just a few weeks with the CacheFlow solution, we saw some very satisfying results. After about 14 days’ operation, the cache has gathered the equivalent of approximately 11 gigabytes of Internet traffic, and today this services nearly 40 percent of all our web traffic. The cache is dynamic and is constantly updated, while the pipeline function ensures extremely fast response times - also when it involves searches for new content on the Internet,” said Jeppesen.

The Danish Royal library is also committed to providing greater access to digital reference materials, in particular to increasing the availability of historical documents, and resources through streaming media. Providing online access to digital documents and streamed content could place an unnecessary burden on the library’s network, but with a cache server, frequently sought after content can now be delivered straight from the cache.

“Considering the results we have seen up until now it won’t be any problem to use streaming as an information source,” said Jeppesen. "On the basis of all the advantages I see in a cache server, I can only recommend that every company – even one with a 34 Mbps connection – should have one. We have tested other proxy products based on, for example, Linux and Windows, but they didn’t come close to matching CacheFlow’s solution. CacheFlow has absolutely the best set up – there is one box, one operating system and no unnecessary functionalities to make things more difficult. CacheFlow’s cache server is optimal in my opinion,” added Jeppesen.


About CacheFlow Inc.

CacheFlow is focused on building a new layer of content intelligent infrastructure that makes the Internet content-smart. CacheFlow's market-leading appliances and innovative content delivery technologies enable enterprises, service providers and content providers to deliver the right content to the right place at the right time. Based in Sunnyvale, California, CacheFlow can be contacted via telephone at 408/220-2200, fax at 408/220-2250 or email at


Nigel Hawthorn
CacheFlow Inc.
01276 854111

Alia Ilyas
020 7494 6570

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