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In an NBBS network, the SLIP is used over a
connection between an Nways Switch administration
station (NAS) and an IBM Network Support Center
(NSC).
Simple Network Management Protocol (SNMP). In
the Internet suite of protocols, a network management
protocol that is used to monitor routers and attached
networks. SNMP is an application layer protocol.
Information on devices managed is defined and stored
in the application's Management Information Base
(MIB).
SLA. Serial link architecture.
SLIP. Serial Line Internet Protocol.
SNA. Systems Network Architecture.
SNMP. Simple Network Management Protocol.
socket. The abstraction provided by the University of
California's Berkeley Software Distribution (commonly
called Berkeley UNIX or BSD UNIX) that serves as an
endpoint for communication between processes or
applications.
source route bridging. In LANs, a bridging method
that uses the routing information field in the IEEE 802.5
medium access control (MAC) header of a frame to
determine which rings or token-ring segments the frame
must transit. The routing information field is inserted into
the MAC header by the source node. The information in
the routing information field is derived from explorer
packets generated by the source host.
spoofing. For data links, a technique in which a
protocol initiated from an end station is acknowledged
and processed by an intermediate node on behalf of the
final destination. In IBM 6611 data link switching, for
example, SNA frames are encapsulated into TCP/IP
packets for transport across a non-SNA wide area
network, unpacked by another IBM 6611, and passed to
the final destination. A benefit of spoofing is the
prevention of end-to-end session timeouts.
SRC. System reference code.
STM-1. Synchronous transport module-1.
SW. Switch (module).
SWRD. Switch redrive (module).
synchronous. (1) Pertaining to two or more
processes that depend upon the occurrence of specific
events such as common timing signals. (T)
(2) Occurring with a regular or predictable time
relationship.
Synchronous Data Link Control (SDLC). A discipline
conforming to subsets of the Advanced Data
Communication Control Procedures (ADCCP) of the
American National Standards Institute (ANSI) and
High-level Data Link Control (HDLC) of the International
Organization for Standardization, for managing
synchronous, code-transparent, serial-by-bit information
transfer over a link connection. Transmission exchanges
may be duplex or half-duplex over switched or
nonswitched links. The configuration of the link
connection may be point-to-point, multipoint, or loop. (I)
Contrast with
binary synchronous communication
(BSC).
system. In data processing, a collection of people,
machines, and methods organized to accomplish a set
of specific functions. (I) (A)
Systems Network Architecture (SNA). The
description of the logical structure, formats, protocols,
and operational sequences for transmitting information
units through, and controlling the configuration and
operation of, networks. The layered structure of SNA
allows the ultimate origins and destinations of
information, that is, the end users, to be independent of
and unaffected by the specific SNA network services
and facilities used for information exchange.
T
TCP. Transmission Control Protocol.
TCP/IP. Transmission Control Protocol, Internet
Protocol.
TDM. Time division multiplexing.
Telnet. In TCP/IP, an application protocol that allows a
user at one site to access a remote system as if the
user’s display station were locally attached. Telnet uses
the Transmission Control Protocol as the underlying
protocol.
TFTP. Trivial File Transfer Protocol.
time division multiplexing (TDM). See
channelization.
TN3270. An informally defined protocol for transmitting
3270 data streams over Telnet.
token. (1) In a local area network, the symbol of
authority passed successively from one data station to
another to indicate the station temporarily in control of
the transmission medium. Each data station has an
opportunity to acquire and use the token to control the
medium. A token is a particular message or bit pattern
that signifies permission to transmit. (T) (2) In LANs, a
sequence of bits passed from one device to another
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2212 Service and Maintenance
Summary of Contents for Cloud Object Storage System Slicestor 2212...
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