Wikipedia
XKL
XKL, LLC, was founded in 1991 and develops optical transport technologies. Originally based in Redmond, Washington its headquarters are now located in Kirkland, Washington. XKL is led by Cisco Systems co-founder Len Bosack who also used to work for DEC and Bell Labs. Under Bosack, Cisco commercialized local area network (LAN) technology to connect geographically to computers over a multiprotocol router system.