ZyXEL Communications Prestige 314 User Manual page 184

Prestige 314 Broadband Sharing Gateway with 4-Port Switch
software that you would find on the public Internet, but that is only for internal use.
IP
Internet Protocol. (Currently IP version 4 or IPv4). The underlying protocol for
routing packets on the Internet and other TCP/IP-based networks.
IP Alias Internet Protocol Alias allows you to partition a physical network into different logical
networks over the same Ethernet interface.
IP Pool Internet Protocol Pool refers to the collective group of IP addresses located in any
particular place (for example, LAN, WAN, Ethernet, etc.).
ISP
Internet Service Providers provide connections into the Internet for home users and
businesses. There are local, regional, national, and global ISPs. You can think of local
ISPs as the gatekeepers into the Internet.
Different types of jacks (RJ-11, RJ45 or RJ-48) can be used for an ISDN line. The RJ-
Jack Type
11 is the most common in the world and is most often used for analog phones, modems
and fax machines. RJ-48 and RJ-45 are essentially the same, as they both have the
same 8-pin configuration. An RJ-11 jack can fit into an RJ-45/RJ-48 connector,
however, an RJ-45/RJ-48 cannot fit into an RJ-11 connector.
LAN
Local Area Network is a shared communication system to which many computers are
attached. A LAN, as its name implies, is limited to a local area. This has to do more
with the electrical characteristics of the medium than the fact that many early LANs
were designed for departments, although the latter accurately describes a LAN as well.
LANs have different topologies, the most common being the linear bus and the star
configuration.
Local Exchange Carrier. The local phone companies – either a Regional Bell
LEC
Operating Company (RBOC) or an independent phone company (e.g., GTE) – that
provide local transmission services.
LED Light Emitting Diode. LEDs are visual indicators that relay information about the
status of specific P314 functions to the user by lighting up, turning off or blinking.
LEDs are usually found on the front panel of the physical device. Examples include
Status, Power and System LEDS.
One VC carries multiple protocols with protocol identifying information being
LLC-
Multiplexing contained in each packet header. Despite the extra bandwidth and processing overhead,
this method my be advantageous if it is not practical to have a separate VC for each
carried protocol, eg., if charging heavily depends on the number of simultaneous VCs.
MAC
On a local area network (LAN) or other network, the MAC (Media Access Control)
address is a computer's unique hardware number. (On an Ethernet LAN, it's the same
L Glossary