February Learn how and when to remove this template message. The MEF does not specify how Ethernet services are to be provided in a carrier network. This article has multiple issues. These standards allow for Ethernet networks of planetary scale. Accordingly, carriers must expand their services conservatively and pay close attention to Quality of Service QoS.

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From the original copper coaxial cable format ” thicknet ” it has extended its scope to nearly all copper, optical fiber and wireless physical media. Thus, the use of Ethernet in a metro network allows service providers to take advantage of volumes that a much larger enterprise segment commands. It makes use of a number of basic transport ep-4be9ai, including SDH and increasingly Ethernet.

It has become dominant in enterprise ep-4beai. Retrieved 22 September Moreover, customers are familiar with the capabilities of Ethernet networks, and would like to extend these capabilities to multi-site networks.

It is not practical to expand most small networks beyond 1G or at most 2G dual teaming gigabit capacity per segment, since the bottleneck remains in the wide area links to other offices and online services.

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This played a key role in defining:. Customer LAN networks are increasingly connected to wide-area telecommunications networks over Ethernet interfaces or to devices that bridge digital subscriber line DSL or wireless to these. Please update this article to reflect recent events or newly available information. The MEF was formed in in order to develop ubiquitous business services for Enterprise users principally accessed over optical metropolitan networks in order to connect their Enterprise LANs.


One motive to create competing standards has been to drive down the price of comparable-speed Ethernet devices. Analogous definitions for wireless networks are defined in IEEE This dominance has led to high production-volume components, which in turn have allowed extremely low cost per bit. From Wikipedia, the free encyclopedia. Learn how and when to remove these template messages. By using this site, you agree to the Terms of Use and Privacy Policy.

Parts of this article those related to Carrier Ethernet 2. To create a market in Ethernet services, it is necessary to clarify and standardise the services to be provided. Examples include FireWire and Light Peak.

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In part, it is also due to ease of deployment, using its ability to self-configure based on the key concepts of “learning bridge” floodingand associating learned destination addresses with bridge ports and ” spanning tree protocol ” the protocol used for avoiding bridging loops. Carrier-Ethernet Transport CET usually involves an evolution of conventional Ethernet and comprises multiple technology components.

The “bridge” and “spanning tree” concepts described above do not scale to large international networks.

Ethernet is a fairly simple protocol which has scaled to hundreds of thousands of times faster speeds and consistently been able to adapt to meet the needs and demands of new markets. The OIF and the Ethernet Alliance have also been working cooperatively with their members to enable future enhancements to Ethernet for the WAN while looking to the future speed of Ethernet technologies and ep-4vea9i.


Meanwhile, the needs of such networks have expanded to include many services previously handled only on the LAN or by specialized connections, notably video and backup. Views Read Edit View history. Likewise Ethernet has a long history of re-inventing itself. These standards allow for Ethernet networks of planetary scale. Carrier Ethernet demarcation is a key element in Carrier Ethernet services and transport networks for business, wholesale and mobile backhaul applications, as it enables service providers to extend their control over the entire service path, starting from the hand off points.

They are also constrained as services cannot be migrated from local to wide area services too fast lest they exceed the total provisioning available and result in unacceptable quality. Please help improve it to make it understandable to non-expertswithout removing the technical details.

November Learn how and when to remove this template message. Carrier Ethernet is a marketing term for extensions to Ethernet to enable telecommunications network providers to provide Ethernet services to customers and to utilize Ethernet technology in their networks.

Bit rates have continued to increase, traditionally growing tenfold each time a new rate is defined.

Retrieved August 6, Ethernet has a long history.