For 24 hours on Wednesday, 400-plus Internet companies including Google, Facebook and Microsoft teamed up for a large-scale production test of the next-gen Internet protocol, IPv6. Organized by the Internet Society to raise awareness of the need for a global transition to the new Internet protocol, the test enabled participants to gather data about possible glitches. The Internet has been running on IPv4 for years, and the pool of available IP addresses has dried up.
Source: TechNewsWorld