TELECOMMUNICATIONS AND INTERNETWORKING EQUIPMENT, NAMELY, OPTICAL NETWORKING EQUIPMENT, OPTICAL SWITCHING AND MULTIPLEXING EQUIPMENT, NAMELY ROUTERS, BRIDGES, ADD/DROP MULTIPLEXERS AND DEMULTIPLEXERS, SWITCHES, NAMELY, OPTICAL SWITCHES, PACKET SWITCHES, ETHERNET SWITCHES, MULTIPROTOCOL LABEL SWITCHING (MPLS) SWITCHES, GENERAL MULTIPROTOCOL LABELING SWITCHING (GMPLS) SWITCHES; PARTS, SUBSYSTEMS AND SUPPLIES, NAMELY, OPTICAL AMPLIFIERS, REPEATERS, TRANSMITTERS, RECEIVERS, TRANSDUCERS, TRANSPOND...

optical routers, switches, and systems