The group of protocols developed for and specific to the Novell NetWare network operating system (NOS); popularized in NetWare versions 2 and 3. Some of the networking architecture of NetWare protocols evolved from the Xerox Network Systems (XNS) created in the late 1970s. The more important NetWare protocols that figure prominently in NetWare version 3 include the following:
In addition to these original NetWare protocols, NetWare version 4 also supports Internet Protocol (IP) encapsulation of IPX/SPX packets, which means that IPX datagrams can be encapsulated within User Datagram Protocol (UDP) packets for transmission over TCP/IP internetworks. NetWare 5 has native support for TCP/IP.