04-06-2013, 04:04 PM
Optical Ethernet A Technical Seminar Report
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Introduction
•Optical Ethernet: combination of two technologies-
EHTERNET & OPTICS
• It combines the flexibility and simplicity of Ethernet with
the reliability and speed of optics.
•Optical Ethernet attributes – simplicity, speed, and
reliability . It removes the bandwidth bottleneck between the
LAN and the WAN
Optical Ethernet Building Blocks
• Ethernet Over Fibre (EoF): electrical to optical translation
over dark fiber.[Point-to-Point & Mesh topology
• Ethernet Over Resilient Packet Ring (EoRPR): it
solves the traditional problem of SONET bandwidth ‘waste’.
[RING topology]
• Ethernet Over DWDM (EoDWDM): utilizes DWDM as its
core transport. EoDWDM is byte rate and protocol
independent that allows into work in almost any network
scenario.[Ring, Mesh, Point-to-Point topology]
• HYBRID: The above blocks merged together.
Ethernet Network Elements
Data terminal equipment (DTE)—Devices that are
either the source or the destination of data frames. DTEs
are typically devices such as PCs, workstations, file
servers, or print servers that, as a group, are all often
referred to as end stations.
Data communication equipment (DCE)—Intermediate
network devices that receive and forward frames across the
network. DCEs may be either standalone devices such as
repeaters, network switches, and routers, or communications
interface units such as interface cards and modems
Recent Trends
•Optical Ethernet Switches
•GBIC Modules-also known as the small form-factor
pluggable multisource agreement (SFP MSA) module. The
mini–GBIC is only about half the size, effectively doubling the
available capacity that can be designed into the face of an
equipment shelf.
•Resilient Packet Rings (RPR)-to define a high-performance,
high-availability optical transport suitable for carrier networks
in metropolitan service areas.
Conclusion
• Optical Ethernet transforms the corporate network into a
key competitive advantage.
• Optical Ethernet also provides network versatility to meet
a wide range of customer needs