According to Business Wire,
HP Boosts Performance of CERN NetworkProducts and services of Hewlett-Packard were chosen by the CERN network team to deal, among other things, with the 15 million gigabytes of data that the LHC needs to share, store, and analyze every year.
That's more data than what could be stored on the whole hard disk of my ancient HP Pavilion ze4125 laptop ;-) which I still keep alive but no longer use too often.
It seems that the network will primarily use the new IPv6 protocol for IP addresses.
