MEF 3 Circuit Emulation Service Definitions, Framework and Requirements in Metro Ethernet Networks
Circuit Emulation Service “tunnels” TDM traffic through a Carrier Ethernet network allowing inclusion of legacy networks within a Carrier Ethernet environment
The emulation of TDM circuits over a Metro Ethernet Network (known as Circuit Emulation Services, or CES) is a useful technique to allow MEN service providers to offer TDM services to customers. This document outlines the types of the TDM services that can be offered over a MEN, and the requirements of such services. It covers both PDH services (e.g. Nx64 kbit/s, T1, E1, T3, E3) and SONET/SDH services (STS-1, STS-3, STS-3c, STS-12, STS12c and European equivalents).
The document contains three sections:
- a set of service definitions for Circuit Emulation Services (CES) in the Metro Ethernet Forum context,
- a framework section explaining issues with the implementation of such services
- a set of requirements needed for providing such services in Metro Ethernet Networks (MEN).
Separate implementation agreements for PDH and SONET/SDH services will be produced which cover the implementation of these services in an inter-operable manner. This document is intended as a reference against which any Implementation Agreement can be compared to ensure that all the service requirements have been met.
Standards published by MEF are intended for general distribution to the public and may be downloaded from this site and reproduced without charge. Any reproduction of MEF documents shall contain the following statement: “Reproduced with permission of MEF Forum.” All rights granted to MEF under applicable copyright laws are expressly reserved. No permission is granted to any recipient or user of MEF publications to modify any of the information contained therein and MEF disclaims all responsibility and liability for such modifications.