The failure had begun to overload some servers that store the instant messaging messages for users who are currently offline. This had some computer late responses from these servers and get an older Windows version of Skype software (vversion 5.0.0.152) had processed these answers wrong - which led to a crash.This Skype for about 20 percent of users had failed. Since Skype technically but on the P2P principle is based, and each participant simultaneously relay station for the transfer of data is already meant to destabilize the Skype network. But the little error should cause far more than just a data bottleneck.
Because computers were among the fallen and some that act as so-called "super nodes" as hubs for the mediation talks on Skype. After the failure of which would have the rest of "Super Nodes" traffic can no longer cope, so it came to a much larger loss, which ultimately made virtually impossible any communication on Skype.
Until the next day recovered the network. Late Thursday had already been 21 million users back online, which is about 90 percent of the normal users have met on this day, said company president Tony Bates. Measured by the number of users of other Internet services, the number of the worldwide Skype seems small, but the failure caused a stir worldwide: A telephone service that sees itself as a serious competitor to traditional telephony solutions, lives of the so-called quality of service - reliability with reference to voice quality and accessibility.
The fact that Skype, which is mainly used for international calls turned out, just before Christmas with the resulting increase in volume of communication, made things even more embarrassing. On the day after the technological collapse, even before the service again and made quite a statement was found, Skype CEO Tony Bates addressed a common via Youtube apology to its customers.
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