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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.

LAST UPDATED:

16 Apr 2007

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More resources from around the web:

-	You can find SPX in Layer 4 of the OSI network model .
-	Compucom provides another layered view of IPX and SPX .
-	Lexicon Consulting shows IPX and SPX header formats .
-	The Santa Cruz Operation offers a page showing the SPX packet structure .

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