Axis 27980R1 User Manual page 252

Glossary
LU
LU6.2
MIB
NAU
NCP
NCP(2)
NDS
NetBIOS/NetBEUI
NetWare
PCL
Peer-to-Peer Printing
PEM
PPR/PPD
PU
252
Logical Unit. The user's port into an SNA network. LU1 is a high
performance print stream. LU2 is a 3270 terminal data stream. LU3 is a
3270 print data stream. LU6 is a host-to-host data exchange stream. LU7
is the 5250 terminal data stream.
IBM Peer-to-peer data stream for NOS functions. Supports asynchronous
(store-and-forward) networking.
Management Information Base. A database of network configuration
information used by SNMP and CMIP to monitor or change network
settings.
Network Addressable Unit. Entities within an SNA network (SSCP, PU,
LU) that can send or receive requests and responses. An SNA network is
made up of NAUs and the underlying path control network.
NetWare Core Protocol. Network clients use the NCP to request services of
servers, and servers use NCP to provide services, such as file and print
services.
Network Control Program. SNA program resident in the FEP. NCP off-
loads certain line protocol and routing functions from the host CPU.
NetWare Directory Services. A hierarchical data base that manages
NetWare network resources such as servers and volumes.
Network Basic Input Output System, a network protocol with special
functions for local area networks. NetBIOS Enhanced User Interface is an
enhanced version of NetBIOS.
An operating system for local area networks.
Printer Control Language — a set of command codes used when printing.
A PCL driver is a small program that works between the operating system
and the printer.
When selecting Peer-to-peer printing, all print jobs are sent directly to the
print server, rather than through a file server (client/server).
Privacy Enhanced Mail.
Page Printer Requester/Page Printer Daemon. Bidirectional IBM
proprietary TCP/IP application protocol. Supported on AS/400s and
Mainframes for transporting IPDS printer data over TCP/IP. This is not an
open standard.
Physical Unit type within SNA. The software in an SNA node controlling
the node's communications hardware.
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