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EastNet is the name of a regional area network (RAN) (that is similar to a metropolitan area network, or, MAN), that operates around the east of England. EastNet is connected to the SuperJANET backbone in London (ULCC) and in Leeds. EastNet its self consists of a number of leased lines, mostly 1Gbps Ethernet circuits. These are arranged as several daisy-chain links between Chelmsford and Cambridge, with two, three, or four institutions on each chain. As each chain is connected at both ends, a break in any one link will not result in the loss of connectivity to any institution. Cambridge is connected to Leeds and Chelmsford with 2Gbps links, and Chelmsford is connected to London with a 2Gbps link. Again, any single failure in the 2Gbps links will not result in any institution loosing connectivity.
Although EastNet is operated by a consortium of universities, the Routers and leased lines are managed by JANET(UK). The original EastNet was installed early in 2001, with sites becoming 'live' around May/June 2001 with 155 and 34Mbps links (Essex went live on the 15th May at 155Mbps). EastNet2 as it is technically called today has a different topology from the original EastNet, with the speeds as shown above. EastNet2 was installed in 2006, with sites becoming live around November 2006 to April 2007.
The University of Essex is connected to EastNet2 on one of the 1Gbps circuits, and thus receives its JANET services via EastNet2. Essex switched to EastNet2 on the 20th of March 2007.