OSI/TS SCF Reference Manual

Glossary
OSI/TS SCF Reference Manual—424832-001
Glossary-3
EMS
configure Compaq OSI subsystem objects, but it can be used to configure the underlying
X.25 Access Method (X25AM) and Tandem LAN Access Method (TLAM) objects.
EMS. See Event Management Service (EMS)
.
end system. A host or user machine that contains all seven Open Systems Interconnection
(OSI) layers. An end system can communicate with another end system either directly or
through one or more intervening intermediate systems. Compaq systems function as end
systems only. See also intermediate system
.
entry. A type of object representing a routing table or directory entry in the Management
Information Base (MIB).
event. In Distributed Systems Management (DSM)
terms, a significant change in some
condition in the system or network. Events can be operational errors, notifications of
limits exceeded, requests for action needed, and so on.
Event Management Service (EMS). A part of Distributed Systems Management (DSM)
used to provide event collection, event logging, and event distribution facilities. EMS
has a programmatic interface based on the Subsystem Programmatic Interface (SPI) for
both reporting and retrieving events.
flow control. A function that regulates the flow of data within a layer or between adjacent
layers.
global network address. See network service access point (NSAP)
and network service
access point (NSAP) address.
header. The initial part of an Event Management Service (EMS)
message header token.
initiator. The entity that initiates a connect request. Initiators and responders are defined with
respect to a single connection. Some entities can be both an initiator and a responder
simultaneously, but not over the same connection. Through its application program
interface (API) and FTAM initiator process, Compaq FTAM provides access to file
transfer, access, and management services, using the standard International Standards
Organization (ISO) protocol across an Open Systems Interconnection (OSI)
network. In
addition, through its FTAM responder process, Compaq FTAM provides file transfer,
access, and management services to FTAM applications on remote systems on an OSI
network.
intermediate system. Any combination of subnetworks and relay systems used to connect
two or more end systems. Compaq systems are not used as intermediate systems. See
also end system
.
International Telecommunications Union–Telecommunications (ITU–T). The standards-
writing organization for international telephone carriers. Formerly called the
International Telegraph and Telephony Consultative Committee (CCITT).
Internet Protocol (IP). A set of rules for communication across subnetworks of a larger
network. Open Systems Interconnection (OSI)
defines an Internet protocol, as does the