Nortel Networks NB5PLUS4/W - Manual (Page 103)

YML754 Rev1 NB5Plus4/W User Guide
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Mbps Abbreviation for Megabits per second, or one million bits
per second. Network data rates are often expressed in
Mbps.
Microfilter In splitterless deployments, a microfilter is a device that
removes the data frequencies in the DSL signal, so that
telephone users do not experience interference (noise)
from the data signals. Microfilter types include in-line (in-
stalls between phone and jack) and wall-mount (tele-
phone jack with built-in microfilter). See also splitterless.
NAT Network Address Translation A service performed by
many routers that translates your network’s publicly
known IP address into a Private IP address for each com-
puter on your LAN. Only your router and your LAN know
these addresses; the outside world sees only the public IP
address when talking to a computer on your LAN.
NAT rule A defined method for translating between public and pri-
vate IP addresses on your LAN.
network A group of computers that are connected together, al-
lowing them to communicate with each other and share
resources, such as software, files, etc.A network can be
small, such as a LAN, or very large, such as the Internet.
n­etwork mask A network mask is a sequence of bits applied to an IP
address to select the network ID while ignoring the host
ID. Bits set to 1 mean “select this bit” while bits set to 0
mean “ignore this bit.” For example, if the network mask
255.255.255.0 is applied to the IP address 100.10.50.1,
the network ID is 100.10.50, and the host ID is 1. See
also binary, IP address, subnet
NIC Network Interface Card An adapter card that plugs into
your computer and provides the physical interface to your
network cabling, which for Ethernet NICs is typically an
RJ-45 connector. See Ethernet, RJ-45.
packet Data transmitted on a network consists of units called
packets. Each packet contains a payload (the data), plus
overhead information such as where it came from (source
address) and where it should go (destination address).
pin­g­ Packet Internet (or Inter-Network) Groper A program
used to verify whether the host associated with an IP
address is online. It can also be used to reveal the IP ad-
dress for a given domain name.
port A physical access point to a device such as a computer
or router, through which data flows into and out of the
device.
POTS Plain Old Telephone Service Traditional analog telephone
service using copper telephone lines. Pronounced pots.
See also PSTN.
POTS splitter See splitter.