SNAX/XF and SNAX/APN Configuration and Management Manual

Glossary
SNAX/XF and SNAX/APN Configuration and Management Manual—425836-005
Glossary-24
TLOGMGR LU object
TLOGMGR LU object. A SNAX/APN local LU object that represents the TLOGMGR LU.
token. In the context of networking protocols, a sequence of three bytes passed from node
to node along the network. The middle field contains a token bit that indicates to a
receiving node that the token is available to accept information. If that node has data to
transmit, it appends that data to the token and changes the value of the bit. The token
now becomes a frame.
trace. A record of the execution of a computer program or of data transmitted over a
specified interface.
type 2.1 node. In SNA, a node that can participate in advanced peer-to-peer networking. It
contains its own control point which enables it to establish communication with other
type 2.1 nodes without the intervention of a system services control point (SSCP).
UCB. Unit control block.
UCW. Unit control word.
V.25 bis. The International Telegraph and Telephone Consultative Committee (CCITT)
protocol recommendation that will allow setting up a data connection on the general
switched-telephone network using a serial modem with automatic calling capability.
V.35. The International Telecommunications Union, Telecommunication Standardization
Sector (ITU-T) standard for data transmission at 48 kilo bits per second over 60 - 108
kilohertz group band circuits. It contains the 34-pin V.34 connector specifications
normally implemented on a modular RJ-45 connector. V.35 is the equivalent of
Electronics Industry Association (EIA) RS-422/RS-449.
version compatibility. The ability of a requester and server of different revision levels to
operate gracefully together.
virtual circuit. In a packet-swi5tched data network, a logical end-to-end transmission
channel (as opposed to a physical connection) that connects X.25 users.
VTAM. Virtual telecommunications access method.
VTAM list. A resource definition file used by VTAM.
WAN concentrator. See ServerNet wide area network (SWAN) concentrator
.
WAN manager process. The WAN manager process is provided as part of the WAN
subsystem. It is started and managed by the NonStop Kernel subsystem Subsystem
Control Facility (SCF) product module. It is started as a generic process and runs as a
NonStop process pair in the host system CPUs. The WAN manager process starts and
manages the WAN subsystem objects including the ConMgr and WANBoot processes.
The WAN manager process is also used to start the WAN product process and device
objects. SCF commands are directed to the WAN manager processes for configuring