Motorola surfboard sbg901 User Manual page 114

TERM
IEEE 802.11b
IEEE 802.11g
IEEE 802.3
IGMP
IGMP spoofing
impedance
impulse noise
ingress noise
Internet
Internetwork
IP
IP address
B Glossary
This document is uncontrolled pending incorporation in PDM
DEFINITION
IEEE wireless network standards
See Ethernet.
Internet Group Membership Protocol is the Internet multicasting
standard. IGMP establishes and maintains a database of group
multicast addresses and interfaces to which a multicast router
forwards multicast packets. IGMP runs between multicast hosts and
their immediately-neighboring multicast routers.
A process where a router acts as an IGMP querier for multicast hosts
and an IGMP host to a multicast router.
The total opposition to AC electron current flow within a device.
Impedance is typically 75 ohms for coax cable and other CATV
components.
A noise of very short duration, typically along the order of 10
microseconds. It is caused by electrical transients such as voltage
spikes, electric motors turning on, and lightning or switching
equipment that bleed over to the cable.
Noise typically caused by discrete frequencies picked up by the cable
plant from radio broadcasts or an improperly grounded or shielded
home appliance such as a hair dryer. Ingress is the major source of
cable system noise.
A worldwide collection of interconnected networks using TCP/IP.
A collection of interconnected networks allowing communication
between all devices connected to any network in the collection.
Internet Protocol is a set of standards that enable different types of
computers to communicate with one another and exchange data
through the Internet. IP provides the appearance of a single, seamless
communication system and makes the Internet a virtual network.
A unique 32-bit value that identifies each host on a TCP/IP network.
TCP/IP networks route messages based on the destination IP address.
An IP address has two parts:
A network address assigned by IANA
SBG901 network administrator assigns a host address to each host
connected to the SBG901, automatically using its DHCP server as a
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