Xylan Corporation was a computer networking company that specialized in Ethernet switches and routers. The company was founded in 1993 and was headquartered in Calabasas, California. Xylan was acquired by Alcatel in 1999 for $2 billion. At the time of the acquisition, Xylan had over 1,000 employees and had offices in over 30 countries. Xylan's products were used by a variety of customers, including telecommunications companies, government agencies, and large corporations.