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The network supports the accreditation system, stadium operations, media relations and the Info 2002 system, which supplies real time statistics and match data during the tournament.
In addition, the voice-over-IP telephony system, which connects the FIFA remote offices and stadia, is carrying 100,000 calls per day, according to Avaya.
As the tournament approaching its climax, with the final on 30 June, Avaya expects daily data volume to rise to around 500Gbytes. It also predicts that the total amount of traffic carried over the network to reach 10Tbytes by the final - that is around four times the daily data volume of a major regional bank in Asia.
The network, which is based on Asynchronous Transfer Mode (ATM) in Japan and frame relay in South Korea, is monitored from five centres - the International Media Centres in Yokohama and Seoul, the Avaya site in Singapore and two additional Avaya sites in the US. Each centre has the ability to take immediate control of the network should a problem hit the central monitoring centres in Japan and South Korea.
To date, problems have been few and Avaya says packet loss during the first two weeks averaged 0.00001%, while average round-trip time between the Yokohama and Seoul media centres has been about 70 milliseconds at peak times.
As the tournament progresses and data volume increases, the size of the network is gradually decreasing. During the first two weeks of the tournament, 23 sites across the two nations made up the network. However, stadium nodes have been switched off for security purposes after each has hosted its last game.