Sequenced Packet Exchange
SPX (Sequenced Packet Exchange) is the protocol
for handling packet sequencing in a Novell NetWare network. SPX prepares
the sequence of packets that a message is divided into and manages the
reassembly of received packets, confirming that all have been received
and requesting retransmission when they haven't. SPX works directly with
the Internetwork Packet Exchange (IPX),
which manages the forwarding of packets in the network.
IPX/SPX are comparable to the basic Internet
protocols, Internet Protocol and Transmission
Control Protocol