No. Hub works only on first layer. On second layer only swithc/bridge works on second layer of OSI model.
Physical layer = Hub, NIC, Repeater. Data Link Layer = Switch, Bridge. Network Layer = Router.
Its at Layer 1 of the Open Systems Interconnection Model (OSI model) Layer 7 Application Layer 6 Presentation Layer 5 Session Layer 4 Transport Layer 3 Network Layer 2 Data Link Layer 1 Physical
hub work at physical layer of osi model
TheHub work on layer 1 i.e. Physical layer of OSI Model
1)Hub is a layer 1(physical layer)device whereas switch is a layer 2(datalink) device. 2)Hub sends data to all ports unnecessarily.so in this way it shared bandwidth whereas switch sends data to exact that port which required it after learning destination MAC address.so here is a dedicate bandwidth. NAME-Sarfaraz mohammed LOCATION-central
at the physical layer ,hub can support little in the way of sophisticated networking. hubs do not read any data passing through them and are not aware of there source and destination.
HUB
Hub
A hub (or L2 switch) performs data bridging/switching/forwarding at the OSI Layer 2 level for data destined to another address on the same subnet. For data to be forwarded to another subnet, that data must be routed at the OSI Layer 3 level which is performed by a Router (or L3 Switch). Routers collect various information about other networks it can forward traffic to and from, what routing protocols are used and which path(s) to forward that data to.
This is actually just a modem. A hub is a device with multiple ports for connecting computers to each other. A hub is now rarely used as a network switch is a faster more reliable device. Confusion comes from people like BT who supply what they call a home hub, which is actually a wireless router, they use the term home hub to refer to the central point (as in hub of a wheel) connection, probably because it's bright young designers never heard of a network hub! A modern wireless router normally consists of a combined router, 4 or 5 port network switch and wireless access point in one, and a non wireless one is the router and network switch Mohammad Talha 009746411902
What_are_the_devices_used_in_osi_transport_layerNetwork Devices Used in Transport Layer: The Brouter (Bridge router), Gateway and Cable tester work on the transport layer.for more about devices used in 7 layers of OSI model go: http://www.networktutorials.info/osi_layers.html
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