Novell based its network protocol on Xerox Network Systems ( XNS ), and created its own standards from IDP and SPP, which it named Internetwork Packet Exchange ( IPX ) and Sequenced Packet Exchange ( SPX ).
2.
For example, Internet Protocol ( IP ) uses the IP Control Protocol ( IPCP ), and Internetwork Packet Exchange ( IPX ) uses the Novell IPX Control Protocol ( "'IPX / SPX "').