Alan Freedman -- The Computer Language Company - Computer Desktop Encyclopedia
Computer Desktop Encyclopedia
Longest-Running Tech Reference on the Planet

A CDE Definition

You'll love The Computer Desktop Encyclopedia (CDE) for Tech Term of the Day (TTOD)

LOOK UP ANOTHER TERM


SPX

(Sequenced Packet EXchange) The transport layer protocol in the NetWare operating system. Similar to the TCP layer in TCP/IP, it ensures that the entire message arrives intact. SPX uses NetWare's IPX as its delivery mechanism. Application programs use SPX to provide client/server and peer-to-peer interaction between network nodes. See IPX.



IPX

(Internetwork Packet EXchange) The network layer protocol in the NetWare operating system, which years ago was the major LAN OS. Similar to the IP layer in TCP/IP, it contained a network address and allowed messages to be routed to a different network or subnet. IPX did not guarantee delivery of a complete message. Just like IP packets, NetWare IPX packets could get dropped from overloaded routers, thus either the application had to ensure delivery of the entire message or NetWare's SPX protocol had to be used. See SPX and NetWare.




IPX Vs. IP
IPX and SPX were the network and transport layers, equivalent to IP and TCP in a TCP/IP network. Comparing NetWare to the OSI model, one obvious difference is the LSL layer, which provides a common interface to network drivers. ODI and NDIS are the two most commonly used LSL implementations.






Personal Use Only

Before/After Your Search Term
BeforeAfter
spriteSPX/IPX
sprocket feedspy blocker
Spryspy cam
SPSspy camera
SPSSspycam
sptspyware
SPUDspyware blocker
SPUFIspyware remover
sputteringSQ
SPVSQ1

Terms By Topic
Click any of the following categories for a list of fundamental terms.
Computer Words You Gotta KnowSystem design
Job categoriesUnix/Linux
Interesting stuffPersonal computers
InternetIndustrial Automation/Process Control
Communications & networkingAssociations/Standards organizations
HistoryDesktop publishing
Audio/VideoGraphics
MainframesSecurity
ProgrammingHealthcare IT
System design