What's the Difference Between Routers, Switches and Hubs?




Answers were Sorted based on User's Feedback



Answer / ramashish sharma

Hub is a multiport repeator. Works at the Physical layer.

Switch switches frames from one port to another. Works at
the Data Link Layer.

Router is a device which is used to connect two different
networks together. It works at the Network Layer.

Is This Answer Correct ?    36 Yes 2 No

Answer / ravi shanker

hub works on physical layer and hub do not break up
broadcast domain and do not break up collision domain.

switch works on DataLink layer and it break up collision
domain but do not break up broadcast domain .

Router works on network layer and router break up both
collision and broadcast domain .

Is This Answer Correct ?    21 Yes 5 No

Answer / vadivel

A hub is prone to collisions as pc's connected to a hub
form a single collision domain.
Where as in a switch each port is a collision domain and
the bandwith of each port is fully utilized.
Each port is a collision domain in a swith.

Is This Answer Correct ?    10 Yes 2 No




Answer / ramesh m

The functions of a router, hub and a switch are all quite
different from one another, even if at times they are all
integrated into a single device. Let's start with the hub
and the switch since these two devices have similar roles
on the network. Each serves as a central connection for all
of your network equipment and handles a data type known as
frames. Frames carry your data. When a frame is received,
it is amplified and then transmitted on to the port of the
destination PC. The big difference between these two
devices is in the method in which frames are being
delivered.

Is This Answer Correct ?    7 Yes 1 No

Answer / vadivel

A hub is prone to collisions as pc's connected to a hub
form a single collision domain.
Where as in a switch each port is a collision domain and
the bandwith of each port is fully utilized.
Each port is a collision domain in a swith.

Is This Answer Correct ?    11 Yes 6 No

Answer / semionie_zz

Hub is layer 1 device..all devices connected to a hub are
in a single collision domain i.e. more than 1 device can
send at the same time resulting in collision between data
from different devices, also a hub is a single broadcast
domain.
the switch is a layer 2 device so it understands mac-
addresses so it can forward data based on mac address
table, although each interface in a switch is a single
broadcast domain( for example a hub with group of devices
is conneced to certain interface in a switch), thats why
switch is a multiple collision domain which means that each
interface is a single collision domain, also a switch is a
single broadcast domain.
Router is layer 3 device it doesn't allow collision or
broadcast.

Is This Answer Correct ?    3 Yes 1 No

Answer / s.m.feroz ahmed

Hi,
Routers connect different Networks .Routers can bring
different Networks together.

Switches bring different computers in Network together and
for fast use of Internet Access.The provided Bandwidth by
ISP is provided to all computers in network.

Hubs divide the Bandwidth provided by ISP and will provide
the slow Internet Access.

Is This Answer Correct ?    2 Yes 1 No

Answer / arunkongara

HUB the name itself says it is a collection of things and it will do nothing just it is a repeater it is a layer-1 device
every time it will broadcast packets it will not store MAC-ADD
so it have one broadcast,collision domain

switch is layer two device which store the MAC-ADD if we will send the packet first time than it will broadcast and than it will learn the mac-add and store next time if packet come to machine which mac-add already in mac-table of switch it will direct unicast that packet to that machine....in switch every port as a diff collision domain with the VLAN we will bake up broadcast domain also

router the heart of network it routes the packets from one network to another it is layer three device it deals with ip(logical) add of network

Is This Answer Correct ?    2 Yes 1 No

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