SIMREX DataMover ESS, Руководство пользователя

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168 DataMover ESS User’s Guide SIMREX MAN.ESS-01, Rev. F
SIMREX Corporation
Hop Pattern Seed —A user-selectable value to be added to the hop pat-
tern formula in an unlikely event of nearly identical hop patterns of two
collocated or nearby radio networks to eliminate adjacent-network inter-
ference.
Host Computer —The computer installed at the master station site, that
controls the collection of data from one or more remote sites.
HTTP —Hypertext Transfer Protocol
IAPP (inter-Access Point Protocol) —A protocol by which access
points share information about the stations that are connected to them.
When a station connects to an access point, the access point updates its
database. When a station leaves one access point and roams to another
access point, the new access point tells the old access point, using IAPP,
that the station has left and is now located on the new access point.
ICMP —Internet Control Message Protocol
IGMP (Internet Gateway Management Protocol) —Ethernet level
protocol used by routers and similar devices to manage the distribution
of multicast addresses in a network.
IEEE —Institute of Electrical and Electronic Engineers
Image (File)—Data file that contains the operating system and other
essential resources for the basic operation of the radio’s CPU.
LAN —Local Area Network
Latency —The delay (usually expressed in milliseconds) between when
data is applied at the transmit port at one radio, until it appears at the
receive port at the other radio.
MAC —Media Access Controller
MD5 —A highly secure data encoding scheme. MD5 is a one-way hash
algorithm that takes any length of data and produces a 128 bit “finger-
print.” This fingerprint is “non-reversible,” it is computationally infea-
sible to determine the file based on the fingerprint. For more details
review “RFC 1321” available on the Internet.
MIB —Management Information Base
Microcontroller Unit —See MCU .
Mobile IP —An emerging standard by which access points and stations
maintain network connectivity as the stations move between various IP
networks. Through the use of Mobile IP a station can move from its
home IP network to a foreign network while still sending and receiving
data using it's original IP address. Other hosts on the network will not
need to know that the station is no longer in its home network and can