@techreport{mcpherson-l2tp-es-01, number = {draft-mcpherson-l2tp-es-01}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-mcpherson-l2tp-es/01/}, author = {Danny R. McPherson and Ravi Bail Bhat and Andy Koscinski and Chi Fai Ho}, title = {{L2TP Circuit Emulation Services Extension}}, pagetotal = 0, year = 2000, month = jun, day = 2, abstract = {The Layer 2 Tunneling Protocol (L2TP) {[}RFC2661{]} defines a mechanism for tunneling PPP sessions. This document proposes mechanisms by which the L2TP tunneling scheme can be used to provide circuit emulation support for layer 2 circuits (i.e. Frame Relay or ATM), as well as TDM circuits (i.e. DS1 or DS3). L2TP is used to provide tunneling support and each circuit is encapsulated over a session inside the Tunnel. An Encapsulation Services Protocol {[}RefESP{]} is used on top of the individual L2TP sessions to support the circuit emulation of layer 2 VCs or TDM circuits. The purpose of this document is to explain the L2TP modifications done to facilitate support of circuit emulation services, as well as to define the additional AVPs that can be used to provide the service.}, }