IPX/SPX

IPX/SPX is the network protocol that is largely associated with Novell Netware. At one point IPX/SPX was the most popular protocl around, and there were attempts to build something as large as the internet with IPX/SPX but it never came to fruition. Each commercial implementation of IPX/SPX was required to be licensed by Novell, and it wound up driving vendors to seek an open protocol that could scale to massive networks, with all the lessions learned from NetBEUI, and IPX/SPX eveyone started to move towards TCP/IP.