Chapter 3. Operating NetView FTP V2.2.1 MVS - IBM

System management facilities. An optional control
program for MVS that provides the means for gathering
and recording information that can be used to evaluate
system usage.
system services control point. In SNA, a focal point
within an SNA network for managing the configuration,
coordinating network operator and problem determination
requests, and providing directory support and
other session services for end users of the network.
Several SSCPs, cooperating as peers, can divide the
network into domains of control, with each SSCP having
a hierarchical control relationship to the physical units
within its domain.
Systems Network Architecture. The description of
the logical structure, formats, protocols, and operating
sequences for transmitting information units through,
and for controlling the configuration and operation of,
networks. The layered structure of SNA allows the
origin and ultimate destination of information to be independent
of and unaffected by the SNA network services
and facilities used to transfer that information.
table display panel. A panel that contains a scrollable
list.
Target Information Message Unit. A message unit
sent by the receiving node after it receives an SDMU.
A TIMU updates the original request, to inform the
sender where to start or restart sending, and, to convey
statistical information.
TCP. Transmission Control Protocol.
TCP/IP. Transmission Control Protocol/Internet Protocol.
A set of communication protocols that support
peer-to-peer connectivity functions for both local and
wide area networks.
TIMU. Target Information Message Unit.
token-ring network. A network that uses a ring
topology, in which tokens are passed in a circuit from
node to node. A node that is ready to send can capture
the token and insert data for transmission.
Transfer Request Message Unit. A message unit
used to send or receive a file, or to restart a previously
interrupted file transfer.
Transmission Control Protocol. A communications
protocol used in Internet and in any network that follows
the U.S. Department of Defense standards for internetwork
protocol. TCP provides a reliable host-to-host
protocol between hosts in packet-switched communications
networks and in interconnected systems of such
networks. It assumes that the Internet protocol is the
underlying protocol.
276 NetView FTP V2 MVS Installation, Operation, and Administration
TRMU. Transfer Request Message Unit.
unattended mode. An operating mode of NetView
FTP for Workstations that assumes that a user is not
available at the workstation, for example, to load
devices such as diskettes or tapes. Contrast with
attended mode.
unused slot. A slot that does not contain a request
control element (RCE).
user exit. A point in an IBM-supplied program at which
a user-exit routine is given control.
user interface. Hardware, software, or both that
allows a user to interact with and perform operations on
a system or program.
user query command. A type of command that
causes NetView FTP to retrieve information about the
requests in the request queue; the information retrieved
is intended for users of NetView FTP. Contrast with
administrator query command.
user query record. A record containing the information
NetView FTP retrieves when a user issues a user
query command. Contrast with administrator query
record.
user-exit routine. An exit routine written by a user.
user-written file handler. An exit routine, written by a
user, that gains access to a file and passes its records
to NetView FTP, or that retrieves the records from
NetView FTP and writes them to a file.
virtual storage access method. An access method
for indexed or sequential processing of fixed- and
variable-length records on direct-access storage
devices. The records in a VSAM data set can be
organized (1) in logical sequence by means of a key
field (key sequence), in the physical sequence in which
they are written in the data set (entry sequence), or (2)
by means of a relative-record number.
Virtual Telecommunications Access Method. See
Advanced Communications Function for the Virtual
Telecommunications Access Method.
VM node. A node with VM as its operating system.
VM system. A system with VM as its operating
system.
VSAM. Virtual storage access method.
VSE node. A node with VSE as its operating system.
VSE system. A system with VSE as its operating
system.