metro Ethernet (metropolitan Ethernet)

An Ethernet LAN-to-LAN metropolitan area network

(MAN) service offering that involves centrally positioning one or more gigabit Ethernet (GbE) or 10-gigabit Ethernet (10 GbE) switches in a metro area. Metro Ethernet offers the advantage of carrying all traffic in native Ethernet format, with no requirement for introducing SDH/SONET, frame relay, ATM

or other Physical Layer or Data Link Layer protocols that can increase both complexity and cost, while adding overhead. See also 10GbE, ATM, Data Link Layer, Ethernet, frame relay, GbE, LAN, overhead, Physical Layer, protocol, SDH, and SONET.

• speckling
• spectral efficiency
• spectral width
• spectrum
• spectrum allocation
• spectrum management
• speech
• speech
• speech recognition
• speech recognition
• Speech-to-Speech (STS)
• speech-to-text
• speed of light
• SPE (Synchronous Payload Envelope)
• SPID (Service Profile IDentification)
• spike
• spim or SPIM (SPam over Instant Messaging)
• splice
• splice case
• splice tray
• splitter
• splitterless ADSL (splitterless Asymmetric Digital Subscriber Line Lite)
• sponsored domain
• spoofing
• spot beam