Expand Configuration and Management Manual (G06.24+)

Expand Configuration and Management Manual—523347-008
Glossary-1
Glossary
active connect request. The default connect request method used by an Expand line-
handler process when it attempts to establish an end-to-end connection. When an
Expand-over-NAM line-handler process issues an active connect request, the network
access method (NAM) process attempts to initiate a connection. When an Expand-
over-IP or Expand-over-ATM line-handler process issues an active connect request, it
sends a Connect Command frame to the remote Expand-over-IP or Expand-over-ATM
line-handler process. See also passive connect request and network access method
(NAM).
adapter. See ServerNet adapter.
adjacent system. See Expand neighbors.
aggregate time factor. The combination of the time factors (TFs) of all of the Expand line-
handler processes in a multi-CPU path. See also time factor (TF) and multipacket
frame.
API. See application program interface (API).
application message size. The number of data bytes sent to an Expand line-handler
process by a higher-level process. The relationship between the Expand frame size
and the application message size can have a major effect on Expand line-handler
process and processor overhead. See also Expand frame.
application program interface (API). The set of functions or procedures that permits a
user’s programs to communicate with the NonStop Kernel operating system kernel and
services.
Asynchronous Transfer Mode (ATM) protocol. A cell-switching and multiplexing
technology that combines the benefits of circuit switching (constant transmission delay
and guaranteed capacity) with those of packet switching (flexibility and efficiency for
intermittent traffic). ATM is a connection-oriented environment. The ATM subsystem is
HP’s implementation of the ATM protocol.
Asynchronous Transfer Mode (ATM) address. In the ATM subsystem, a 20-byte
hexadecimal number that identifies an ATM LINE object.
ATM 3 ServerNet Adapter (ATM3SA). A ServerNet adapter that provides access to
asynchronous transfer mode (ATM) networks from a NonStop S-series server. The
ATM3SA supports the ATM User-Network Interface (UNI) specification over a 155Mbps
OC-3 Sonet (Synchronous Optical Network) connection.
ATM protocol. See Asynchronous Transfer Mode (ATM) protocol.