What is the function of router?

Question

What is the function of router?

Answer 1

A router may create or maintain a table of the available routes and their conditions and use this information along with distance and cost algorithms to determine the best route for a given packet. Typically, a packet may travel through a number of network points with routers before arriving at its destination. Routing is a function associated with the Network layer (layer 3) in the standard model of network programming, the Open Systems Interconnection (OSI) model.

Answer 2

Start at Wiki:

http://en.wikipedia.org/wiki/Router

Answer 3

It specify the route of data which will transfer in the network(in short it specify the path of network)

it also can allow or deny any ip addresses to access the network

It can connect two or more different networks also

Answer 4

Hi Rita,

Hope you are doing well.

Let me try to explain you:

Router: A network device that forwards packets from one network to another. Based on internal routing tables, routers read each incoming packet and decide how to forward it. The destination address in the packets determines which line (interface) outgoing packets are directed to. In large-scale enterprise routers, the current traffic load, congestion, line costs and other factors determine which line to forward to.

Its a layer 3 device and work at network layer.

In basic this is enough. If you study this term more deeply.

Give me buzz, I will mail you with few scenarios.

Answer 5

To allow you to have wireless devices like the iPod Touch and laptops to go online without wires

Answer 6

lets you use your laptop or wifi cell phone anywhere without wires

Answer 7

Routers

Router definition

To research for white papers, case studies, product literature and webcasts on Routers, Router Software, etc, follow this link  

A router is defined as a device that selects the best path for a data packet to be sent from one computer network to another. A router is located at any gateway (where one network meets another), and is often included as part of a network switch.

How routers work

Electronic messages sent between computer networks are stored in the router, while it determines all of the possible paths to the destination address. The router then chooses the most expedient route, based on its investigations into the traffic load, distance, number of network points that the packet has to pass through, and cost algorythms between computer networks, before forwarding the packet to the final destination.

Router hardware is a physical device which connects the local area network to the wide area network, it is responsible for routing network traffic from source to destination. These routers run on layer routing protocols and operate on network layer information.

Router Software

Router softwares are used to determine the packet point to point switching, software routers contain a header and a footer and are used to determine each path on the LAN which is taken.

Answer 8

A router is an internet end device that directs ip packets to the ports on the internet that will best get them to their destination. And if you have multiple computers on the same router at your house it directs packets from online to whichever comp requested info.

Answer 9

A router is a device that forwards data packets along networks. A router is connected to at least two networks, commonly two LANs or WANs or a LAN and its ISP's network. Routers are located at gateways, the places where two or more networks connect, and are the critical device that keeps data flowing between networks and keeps the networks connected to the Internet. When data is sent between locations on one network or from one network to a second network the data is always seen and directed to the correct location by the router. They accomplish his by using headers and forwarding tables to determine the best path for forwarding the data packets, and they use protocols such as ICMP to communicate with each other and configure the best route between any two hosts.