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From its origin more than 25 years ago, Ethernet has evolved to meet the increasing demands of packet-based networks. Due to its proven low implementation cost, reliability, and relative simplicity of installation and maintenance, Ethernet's popularity has grown to the point that nearly all traffic on the Internet originates or terminates with an Ethernet connection. Further, as the demand for ever-faster network speeds has increased, Ethernet has been adapted to handle these higher speeds, as well as the surges in volume demand that accompany them. The IEEE 802.3ae* 2002 (10 Gigabit Ethernet standard) is different in some respects from earlier Ethernet standards in that it will only function over optical fiber, and only operates in fullduplex mode (collision-detection protocols are unnecessary). Ethernet can now progress to 10 gigabits per second while retaining its critical Ethernet properties, such as the packet format, and the current capabilities are easily transferable to the new standard.

Ethernet has withstood the test of time to become the most widely adopted networking technology in the world. With the rising dependency on networks and the increasing number of bandwidth-intensive applications, service providers seek higher capacity networking solutions that simplify and reduce the total cost of network connectivity, thus permitting profitable service differentiation, while maintaining very high levels of reliability. The 10 Gigabit Ethernet IEEE 802.3ae* 10 Gigabit Ethernet standard is proving to be a solid solution to network challenges. 10 Gigabit Ethernet is the natural evolution of the well-established IEEE 802.3* standard in speed and distance. In addition to increasing the line speed for enterprise networks, it extends Ethernet's proven value set and economics to metropolitan and wide area networks by providing:

- Potentially lowest total cost-of-ownership (infrastructure/operational/human capital)

- Straight-forward migration to higher performance levels

- Proven multi-vendor and installed-base interoperability (Plug and Play)

- Familiar network management feature set An Ethernet-optimized infrastructure is taking place in the metropolitan area and many metropolitan areas are currently the focus of intense network development intending to deliver optical Ethernet services. 10 Gigabit Ethernet is on the roadmap of most switch, router and metropolitan optical system vendors to enable:

- Cost-effective, Gigabit-level connections between customer access gear and service provider POPs in native Ethernet format.

- Simple, high-speed, low-cost access to the metropolitan optical infrastructure.

- Metropolitan-based campus interconnection over dark fiber, targeting distances of 10 to 40 km.

- End-to-end optical networks with common management systems.

- "10 Gigabit Ethernet Technology Overview," Intel Corporation http://www.intel.com/index.htm, Networking and Communications http://www.intel.com/netcomms/index.htm, Network Connectivity http://www.intel.com/network/connectivity/index.htm, Technologies http://www.intel.com/network/connectivity/resources/technologies/index.htm, 10 Gigabit Ethernet http://www.intel.com/network/connectivity/resources/technologies/10_gigabit_ethernet.htm

Directory: http://www.larryblakeley.com/Articles/networks/

File Name: pro10gbe_lr_sa_wp.pdf (2.2 MB)

Post Date: May 18, 2005 at 6:45 PM CDT; 2345 GMT