TROY Group MAN-EXT2000 manual Glossary and Index

normally used with lower-layer protocols like Ethernet, while packet is associated with higher layer protocols like IP and IPX. p. A-11.

Gateway 1. In TCP/IP jargon, a gateway is the same as a router (see Router). 2. A device that converts one higher-level network protocol to

adifferent higher level protocol (for example, a LAT-to-TCP/IP gateway). pp. 4-18,4-21

Hops The number of routers that are located between two devices, such as the print server and the file server. pp. 12-7,12-9.

Host Computer A computer that provides services to one or more users.

Hosts File The file on a UNIX host computer (usually in the /etc directory) that contains a list of host computers on the network). pp. 4-2 to 4-3.

HP/UX The variation of UNIX that runs on Hewlett-Packard computers. pp. 4-4,4-6,4-7.

Hub 1. A multiport repeater for connecting several network segments together; this term is usually associated with 10baseT networks. 2. A sophisticated network device consisting of a chassis plus several plug-in boards, including bridges, routers, 10baseT hubs, and other devices. p 2-13.

IEEE International Electronics and Electrical Engineers, a standards body that controls the specifications for Ethernet and other networking- related standards.

IETF Internet Engineering Task Force; the group that defines the de facto standards for TCP/IP.

I/O Slot Input/Output slot; in printers, a place where network interface cards like the TROY XCD XJet are mounted.

IOP Internal Option Port; the bus used on Lexmark 4039 and Optra Series printers to connect network interface cards like the TROY XCD XMark.

D-6 Glossary and Index