Archived from the original on 23 September November Learn how and when to remove this template message. Examples include FireWire and Light Peak. Please help improve this article by adding citations to reliable sources. Analogous definitions for wireless networks are defined in IEEE The services are categorized as an E-Line service type, with an expectation of low frame delay , frame delay variation and frame loss ratio.

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Retrieved from ” https: It has become dominant in enterprise networks. Meanwhile, the needs of such networks have expanded to include many services previously handled only on the LAN or pe-4bea9i specialized connections, notably video and backup. Analogous definitions for wireless networks are defined in IEEE Two types of technology have been widely used, while a third Carrier-Ethernet transport is rapidly emerging as a viable and logical option for Carrier-Ethernet services. Likewise Ethernet has a long history of re-inventing itself.

Moreover, customers are familiar with the capabilities of Ethernet networks, and would like to extend these capabilities to ep–4bea9i networks. Recognising this, the industry created the MEF.

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. Parts of this article those related to Carrier Ethernet 2.

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Ethernet has a long history. February Learn how and when to remove this template message. The principal concept was to bring the simplicity and cost model of Ethernet to the wide area network. Please update this article to reflect recent events or newly available information. 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.

Retrieved 22 September Despite the advantages described above, Ethernet ep-4bda9i traditionally had a number of limitations in the WAN application. Ethernet’s ubiquitous presence in the LANs worldwide drives down the cost of Ethernet as a technology.

This article needs additional citations for verification. Bit rates have continued to increase, traditionally growing tenfold each time a new rate is defined. These standards allow for Ethernet networks of planetary scale.

Carrier-Ethernet Transport CET usually involves an evolution of conventional Ethernet and comprises multiple technology components. From the original copper coaxial cable format ep-4eba9i thicknet ” it has extended its scope to nearly all copper, optical fiber and wireless physical media. This article has multiple issues.

Archived from the original on For example, time domain capabilities are being added to IEEE Services that try to expand too fast lose money while those that wait too long lose customers.

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Historically, competing protocols and cabling have been created in order to access higher speed devices than contemporary Ethernet-connected devices handled at an affordable price. Views Read Edit View history. The industry has made a concerted effort to resolve the limitations of Ethernet in the WAN described above, so as to allow the use of “native” Ethernet technologies by network providers. Ethernet family of local area network technologies.

Provider Backbone Bridging-Traffic Engineering is allowing such an Ethernet to be controlled by an external control ep-4beea9i management application for example, a network management application or a transport control plane such as GMPLS IETF RFCso as to allow the full range of traffic engineering policies and strategies to a network provider.

One motive to create competing standards has been to drive down the price of comparable-speed Ethernet devices. Please help improve it to make it understandable to non-expertswithout removing the technical details.

It makes use of a number of basic transport protocols, including SDH and increasingly Ethernet.