The most popular caching software - Squid. The latest and striking example is the Winter Olympic games in Nagano when very often direct connection of FREEnet with Nagano was broken and we use to receive information our parent cache in San Diego. We expect to introduce step by step the source cache routing to equilibrate international and interregional traffic of scientific networks. Clearly, extensive contacts and cooperation with foreign national cache programs are of great importance for us. Problems Having the cache server means that you solved some problems, but the new ones comes out as well.
Proxy server is a bottleneck of network access.
If it is down the whole network is down. High quality of service needs high level of redundancy and back-up facilities. Among unsolved problems are very unstable routing. We think to use source cache routing to determine the nearest neighbor with the best connectivity to source of informations. This gives to us hope that overall International bandwidth of networks in Russia will be doubled to the end of this year.