Some vendors provide firewall, network intrusion detection, and performance analysis modules that can plug into switch ports. Some of these functions may be on combined modules. In other cases, the switch is used to create a mirror image of data that can go to an external device.
The airliner that holds the current record of highest passenger capacity is the Airbus A380. The Airbus A380 is a four-engine aircraft and is the largest commercial plane in the world. The A380 took the first flight in April 2005 and commercial service began in October 25th, 2007 with Singapore Airlines.
When the Airbus A380 enters service it will become the second-largest plane in the world and largest passenger aircraft. Built by EADS, it weighs in at 652.5 tons, is 239 feet long and has a fuselage 23 feet, 5 inches in diameter. Its four engines deliver about 300,000 horsepower.