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Beyond the LAN: Ethernet’s Evolution into the Public Network

2003; Taylor & Francis; Volume: 22; Issue: 5 Linguagem: Inglês

10.1080/01468030390221722

1096-4681

P.A. Kellett,

Power Line Communications and Noise

Abstract This article details the evolution of Ethernet into Gigabit Ethernet and how this LAN-based technology has undergone major transformations over time. From its data rates and distances to supported media and functionality, Ethernet has greatly improved, enabling it to surmount many of its former limitations and in so doing to expand beyond the LAN into the MAN and now even the WAN. In this article, Pioneer Consulting explores the evolution further by focusing on some of the major technological directions in the Ethernet equipment industry. Keywords: ethernet 1-gigabit ethernet 10-gigabit ethernet token ring fiber channel Synchronous Optical Networks (SONET) Synchronous Digital Hierarchy (SDH) Dense Wavelength Division Multiplexing (DWDM) Wide Wave Division Multiplexing (WWDM) Local Area Networks (LAN) Metropolitan Area Networks (MAN) Wide Area Networks (WAN) Resilient Packet Rings (RPR) Multiple Protocol Label Switching (MPLS) Generalized Multi-Protocol Label Switching (GMPLS) Media Access Control (MAC) Physical Layer (PHY) Carrier Sense Multiple Access with Collision Detection (CSMA/CD) Add-Drop Multiplexor (ADM) Optical Cross Connect (OXC) Time Division Multiplexing (TDM) Permanent Virtual Circuits (PVC) Switched Virtual Circuits (SWC) Quality of Service (QOS) Label Edge Router (LER) Label Switched Router (LSR) Label Switched Path (LSP) Forward Equivalence Class (FEC) Virtual Private Network (VPN) Internet Protocol (IP) Ethernet Over SONET (EOS) Packet Over SONET (POS) Generic Framing Procedure (GFP) Link Capacity Adjustment Scheme (LCAS) Virtual Concatenation (VC) Virtual Concatenation Group (VCG) Point-to-Point Protocol (PPP) Synchronous Payload Envelope (SPE) SDH Virtual Container (SDH-VC) Optical Circuit (OC) Gigabit Media Independent Interface (GMII) Frame Check Sequence (FCS) Inter-Packet Gap (IPG) Shielded Twisted Pair (STP) Unshielded Twisted Pair (UTP) Media Independent Interface (MII) Reconciliation Sublayer (RS) Physical Coding Sublayer (PCS) Physical Medium Attachment (PMA) Physical Medium Dependents (PMDs) Network Interface Card (NIC) Single Mode Fiber (SMF)