Learn something new every day More Info... by email Pseudowire
is a term given to a telecommunications and computer networking
technique where a circuit is emulated via an existing network.
In essence, it creates a new, virtual wire through an existing
packet switched network (PSN). In this way, older technology can
be used to create a dedicated wire for a customer who is then
unaware of any difference between the older circuit and the
emulated one. The first pseudowire was devised by Luca Martini
in order to figure out a way to transmit dedicated open systems
interconnection (OSI) model layer two services over a multi-
protocol label switching (MPLS) network. Later, the Internet
Engineering Task Force (IETF) formed a working group around the
concept in order to figure out how to standardize the method for
service providers and detail the techniques involved. They
became known as the pseudowire emulation edge to edge (PWE3)
working group, and the papers submitted to the working group by
Martini and his team be