The combination of OTN's FEC and EDC technologies in low OSNR applications offers the potential for greatly improving the cost-effective deployment of next generation data services and transport technologies such as metro/carrier Ethernet. Ethernet's Dominance in the LAN migrates to the MAN/WANFor some time now Ethernet has been the protocol of choice in the enterprise, home, and mobile infrastructure for transporting Internet Protocol (IP) data, voice, and video over Local Area Networks (LAN). The main reasons for Ethernet dominating the LAN is its simplicity and low cost. Ethernet is a best effort protocol service for transporting traffic between computers, printers and other networking equipment in a local area network. It is architected to work in a shared environment where multiple network elements can be connected and communicate with each other over a single wire.Because of Ethernet's cost attractiveness, due to its larger ecosystem, a transformation is taking place in next generation Metro/Wide Area Networks (MAN/WAN). There has been interest in extending Ethernet directly over the (MAN/WAN). This interest has manifested itself over the past couple of years in the form of Carrier Grade Ethernet and Metro Ethernet services. As shown in Figure 1.0, this transformation is taking place from a multiple network layer (PSTN, FR, ATM, IP), using SONET/SDH as the transmission protocol over WDM networks, to a simplified IP/MPLS/Ethernet based service platform using Optical Transport Network (OTN) for transmission over Non-WDM or WDM optical networks. This transformation will yield a cost effective solution with high reliability and optical capacity. Figure 1.0 A New and Cost Effective Network Structure "Ethernet Over Glass"In the MAN/WAN, the SONET/SDH protocol has dominated. Traditionally, to bridge the gap between the LAN and WAN/MAN, ethernet frames carrying IP packets needed to be terminated/regenerated and the IP packets stuffed into/removed from ATM cells or Frame Relay Frames. The cells or frames would then be encapsulated into SONET/SDH frames prior to being transmitted over the MAN/WAN. Due to the bandwidth growth from the 1998-2000 timeframe a new means of serial 10G transport was adopted, Wave Division Multiplexing (WDM). WDM extended the bandwidth by using multiple wavelengths over a single fiber. The WAN consists of WDM, NON-WDM and Dense WDM (DWDM) networks. a1432_1.pdf JWA122.pdf OFC/NFOEC 2008 978-1-55752-855-1/08/$25.00 ©2008 IEEE
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.