Pseudo Wire Emulation Edge-to-Edge (PWE3) provides methods to carry networking services such as ATM, Ethernet, and TDM over a packet switched network (PSN). It has been gaining in popularity because of compelling economic and operational factors.

This article will outline the networking problems that PWE3 solves, how PWE3 works, and describe a PWE3 implementation on Xilinx Virtex and Spartan parts.