Friday, December 11, 2009

TERMS AND DEFINITIONS IN COMPUTER NETWORKS

In computer networks we find a lot of terms that
used therein. Barriers that often occurs in the network learning
computer is the number of terms or words used are sometimes the term
is not in books or dictionaries English language because it is a term
is not a word but an abbreviation such as TCP / IP or IP
many people who terframe her mind when she heard the word direct IP
mean that IP is the number of computers or computer is the number how many.
The things that if not feared to dilurusankan later change
meaning of these abbreviations.

Most abbreviations used in making computer networks
It stands as the name of the word is meant as RJ 45, heard the word
our thoughts are fixed on the object directly, immediately imagined RJ
RJ 45 when 45 itself is an abbreviation of Registered Jack number 45.

Collection of this term deliberately created to provide Inputan for anyone who
is or will be studying computer networks or simply to warm again
our memories on the computer network.
With pleasure, if anyone wants to add it.

10BaseT
Part of the original IEEE 802.3 standard, 10BaseT Ethernet specification is 10 Mbps
baseband that uses two pairs of wires twisted together (twisted pair),
cable category 3, 4, 5 using a single pair of wires to send data Datu
one other pair for receiving. 10BaseT has a distance limit of About a 100
meters per segment.

100BaseT
Based on the IEEE 802.3u standard, 100BaseT is the Fast Ethernet specification
for 100Mbps baseband that uses UTP cable. 100BaseT sends link
pulse (which contain more information than the one used
10BaseT) through the network when there is no data traffic.

100BaseTX
Based on the IEEE 802.3u standard, 100BaseTX Fast Ethernet is a specification
100Mbps baseband that uses two pairs of UTP or STP cable. Cable pairs
The first receive data, the second pair sends data. To ensure the time
the right signal, a 100BaseTX segment length not exceeding 100 diffraction
meters.

A & B Bit Signaling
Signaling bits A & B. digunalan in T1 transmission facilities and sometimes
called "24th" signaling channel (signaling channel to 24). Every 24 T1
subchanel on this Procedur uses one bit for every sixth frame for
sends the information signal control (supervisory).

AAA
Authentication, Authorization, Accounting. A system created by cisco
to provide network security.

AAL
ATM adaption Layer. A sublayer is service-dependent (dependent on
services) from the data link layer, which receives data from other applications and take
to the ATM layer with segments of the payload (data sent) size 48
bytes. CS and SAR are the two form a sublayer of AAL-AAL. Currently four
AAL type recommended by the ITU-T are AAL1, AAL2, AAL3 / 4, and
AAL5. all AAL distinguished by the source-destination timming (time from the source
to the destination) is used, whether CBR or VBR, and whether they are used
for data transmission connection-oriented or connectionless.

AAL1
ATM adaption Layer 1. one of the four AAL recommended by the ITU-T
AAL1 is used for the service connection-oriented and time-sensitive
requires a stable bit rate, such as isochronous traffic and the video is not
in compression.

AAL2
ATM adaption Layer 2. One of the four AAL (a product of the two-layer
recommended by ITU-T. AAL2 is used for connection-oriented service
which supports variable bit rate, such as voice traffic (voice) that
compressed.

AAL3 / 4
ATM adaption Layer ¾. One of the four AAL (a product of the two-layer
different at first) that direkmendasikan by ITU-T, supports both link
connectionless and connection-oriented links. Primarily used for
sending SMDS packets over an ATM network.

AAL5
Adaption Layer 5. One of the four AAL recommended by the ITU-T,
used to support VBR services connection-oriented, especially for
transfer of classical IP network, through an ATM traffic and LANE.
AAL recommendations which are simplified using the SEALs, offering cost
lower bandwidth and processing kebutuhab simpler,
but also providing reduced bandwidth and error-recovery capability.

AARP
AppleTalk Address Resolution Protocol. Protocol in the stack or collection
AppleTalk protocol that maps data-link address of the network address.
AARP Probe Packets
The packages are sent by the AARP to determine whether a node ID
(identification of a point or node) that is given is used by node
others on a network that nonextended AppleTalk. If the node ID is not being
digunkan by another node, the sender node selects the node ID. If the node ID
being used by another node, the sender node will choose a different ID and
then sends out probe packets AARP more.

ABM
Asynchronous Balanced Mode. When the two station initialization bias mlakukan sender,
ABM is an HDLC communication technology that supports communication
peer-oriented and point-to-point between these two stations.

Abr
Area Border Router. An OSPF router that is located on the border of one
OSPF area or more. Abr used to connect OSPF areas to the area
OSPF backbone.

Acces Layer
One layer of three-layer hierarchical model Cisco. Layer provides access
internetworking for the user.

Access Link
A link used with switches that are part of only one
Virtual LAN (VLAN). Trunk links carry information from a VLAN.

Access List
A set of test conditions that are stored by the router
emnentukan attract traffic to and from the router to share the services
network.

Access Methode
Access Method. How to network equipment to gain access to network
alone.

Accsess Rate

Access speed. Determining the bandwidth of the circuit (circuit).
For example, T1 access speed is 1544 mbs. In frame relay and
other technologies, there is the possibility that a fraction of the T1 connection, for example
256 Kbps however clock speed access and fixed rate 1544 Mbps.

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