10 Gigabit Ethernet

Physical Media Dependent (Pmds)

To meet these distance objectives, four PMDs were selected. The task force selected a 1310 nanometer serial PMD to meet its 2km and 10km single-mode fiber (SMF) objectives. It also selected a 1550 nm serial solution to meet (or exceed) its 40km SMF objective. Support of the 40km PMD is an acknowledgement that Gigabit Ethernet is already being successfully deployed in metropolitan and private, long distance applications. An 850 nanometer PMD was specified to achieve a 65-meter objectiveover multimode fiber using serial 850 nm transceivers.

10 Gigabit Ethernet In The Marketplace

          The accelerating growth of worldwide network traffic is forcing service providers, enterprise network managers and architects to look to ever higher-speed network technologies in order to solve the bandwidth demand crunch. Today, these administrators typically use Ethernet as their backbone technology. Although networks face many different issues, 10 Gigabit Ethernet meets several key criteria for efficient and effective high-speed networks:


          From its origin more than 25 years ago, Ethernet has evolved to meet the increasing demands of packet-switched networks. Due to its proven low implementation cost, its known reliability, and relative simplicity of installation and maintenance, its popularity has grown to the point that today nearly all traffic on the Internet originates or ends with an Ethernet connection. Further, as the demand for ever-faster network speeds has grown, Ethernet has been adapted to handle these higher speeds and the concomitant surges in volume demand that accompany them.

The 10 gigabit ethernet alliance

          The purpose of the 10 Gigabit Ethernet proposed standard is to extend the 802.3 protocols to an operating speed of 10 Gbps and to expand the Ethernet application space to include WAN links.


          As the Internet transforms longstanding business models and global economies, Ethernet has withstood the test of time to become the most widely adopted networking technology in the world. Much of the world’s data transfer begins and ends with an Ethernet connection. Today, we are in the midst of an Ethernet renaissance spurred on by surging E-Business and the demand for low cost IP services that have opened the door to questioning traditional networking dogma.