Introduction to Networking for NonStop S-Series Servers

Glossary
Introduction to Networking for HP NonStop S-Series Servers—520670-005
Glossary-9
gateway
standard AWAN using Telserv or FASTPTCP. GAP is provided by Gemini
Communications, Inc., an HP Alliance Partner (http://www.geminic.com).
gateway. A device that connects different local area networks (LANs) at a level above the
Network Layer; that is, it accommodates differences at some higher layer and all layers
below it. Contrast with bridge.
GESA. See Gigabit Ethernet ServerNet adapter (GESA).
Gigabit Ethernet 4-port ServerNet adapter (G4SA). A multiport ServerNet adapter that
provides 1000 megabits/second (Mbps) data transfer rates between HP
NonStop S-series systems and Ethernet LANs. The G4SA is the only LAN adapter
supported for the I/O Adapter Module (IOAM) enclosure, and it is installed in slots 1, 2,
3, 4, and 5 of an IOAM. Although the G4SA supersedes the Ethernet 4 ServerNet
adapter (E4SA), Fast Ethernet ServerNet adapter (FESA), and the Gigabit Ethernet
ServerNet adapter (GESA), it cannot be installed in an HP NonStop™ S-series
enclosure.
Gigabit Ethernet ServerNet adapter (GESA). A single-port ServerNet adapter that
provides 1000 megabits/second (Mbps) data transfer rates between HP NonStop™
S-series systems and Ethernet LANs. A GESA can be installed in slots 51 through 54
of an I/O enclosure and slots 53 and 54 of a processor enclosure.
Two versions of the GESA are available:
•
3865 GESA-C (T523572): a single-port copper version compliant with the 1000
Base-T standard (802.3ab)
•
3865 GESA-F (T523572): a single-port fiber version compliant with the 1000
Base-SX standard (802..z)
Government Open Systems Interconnection Profile (GOSIP). A specification of the set
of requirements an Open Systems Interconnection (OSI) implementation must meet in
order to be used for government applications.
graphical user interface (GUI). A user interface that offers point-and-click access to
program functions.
GUI. See graphical user interface (GUI).
half-duplex transmission. A method of operating a communications circuit so that
transmission must occur in one direction at a time. Supports only two-way alternate
protocol operation.
HDLC Extended Mode protocol. See High-Level Data Link Control (HDLC) Extended
Mode protocol.
HDLC Normal protocol. See High-Level Data Link Control (HDLC) Normal protocol.