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Sunday, March 31, 2013

Difference Between LAN,MAN and WAN

Characteristics
LAN
MAN
WAN
Acronym               
Local Area Network
Metropolitan Area Network
Wide Area Network
Cost
Less Costly
More Costly
Costliest
Speed
Up to 10-100Mbps
5-10Mbps
256Kbps to 2Mbps
Range
1Km
Up to 50 Kms.
Up to 10,000 Kms.
Topology
Bus and Ring
Distributed Queue
Dual Bus [DQDB]
ATM, Frame Relay,
Sonnet
Location of computers
connected in the
system
Computers are located
within the same
Building.
Computers are
located in the city
and are connected
using modems or
telephone lines so
that they can be
easily connected with
Each other.
Computers are
distributed all over
the country or the
Continent. The
connection is made
via satellite
communication link
Or via internet.
Examples
LAN’s example can be
an office whose
different departments
such as personnel,
accounts etc. are
located in the same
building and connected
via bus topology using
Ethernet cards.
Example of MAN is
bank whose different
branches in a city like
Delhi are connected
using public
telephone exchange
and the system are
connected with each
other using LAN
within each branch
and different
branches are
connected using
modem and bridges
WAN’s example is
the connection of
various branches of
MNC such as Microsoft or Intel. These
branches are linked
using microwave
satellite communication
system or internet
Connection. Each
branch has its own
LAN circuit. But the
different LAN’s in
various branches are
communicating with
head office using
WAN link.