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Routers

Routers

A Router is a networking device that data packets between computer networks. Routers perform the traffic direct functions on the Internet. Data sent all the way through the internet, such as a web page or email is in the form of data packets. The networks that compose an internetwork until it reaches its destination node. A Router is connected to two or more data lines from similar networks. The network addresses information in the packet to determine the ultimate destination. Using the information in its routing table or routing policy, it directs the packet to the next network on its journey.

The most familiar type of routers is home and small office routers that simply forward IP packet between the home computers and the Internet. An example of a router would be owner's cable or DSL router, which connects to the Internet through an Internet service provider (ISP). While multiple routers are used in interconnected networks, the routers can exchange information about destination addresses using a routing protocol. Every router builds up a routing table listing the preferred routes between any two systems on the interconnected networks.

Routers have two types of network element components organized into separate planes: Control plane: A router maintains should be used to forward a data packet, and through which physical interface connection. Static and dynamic routes are stored in routing table.

Forwarding plane: The router forward data packets between incoming and outgoing interface connections. Those correct network type using information that the packet header contains matched to entries in the FIB supplied by the control plane.

Routing different networks

Routers are also often famed on the basis of the network in which they operate. A router in a local area network (LAN) of a single organization is called an interior router. A router is operated in the Internet backbone is described as exterior router. While a router that connects a LAN with the Internet wide area network (WAN) is called a border router, or gateway router. A Router is information between two or more packet-switched computer networks analyzing a given data packet's destination IP address, calculating the best way for reach that destination and then forwarding it accordingly.

A router is a common type of gateway located where two or more networks meet, including at each point of presence on the internet. Hundreds of routers strength forwards a single packet as it moves from one network to the next on the way to its final destination. Traditional routers are stand-alone computing devices made up of proprietary software’s loaded into dedicated hardware. A virtual router is a software case that performs the same functions as a physical router, while running on white-box gear either alone or packaged with other virtual network functions, like load balancing, firewall packet filtering and wide area network (WAN) optimization capabilities.

Types of routers

There are several different types of routers. Core routers are mainly ISPs are the fastest and most powerful, sitting at the center of the internet and forwarding information along the main fiber optic backbone. Enterprise routers connect to large organizations' networks to these core routers. An edge router also known as lower-capacity device located at the boundary of a LAN connecting it to a WAN, the internet and/or external LANs. Home and small office routers are considered edge routers. Branch routers link an organization's remote office locations to WAN, connecting to the primary campus network's edge routers. A branch router provides additional features, like time-division multiplexing, wireless LAN management capabilities and WAN application acceleration.

A router is a common type of gateway located where two or more networks meet, including at each point of presence on the internet. Hundreds of routers strength forwards a single packet as it moves from one network to the next on the way to its final destination. Traditional routers are stand-alone computing devices made up of proprietary software’s loaded into dedicated hardware. A virtual router is a software case that performs the same functions as a physical router, while running on white-box gear either alone or packaged with other virtual network functions, like load balancing, firewall packet filtering and wide area network (WAN) optimization capabilities.

Core Router : A core router is sometimes contrasted with an edge router, which routes packets between a self-contained network and other outside networks along a network backbone.

Edge Router : An edge router is a specialized router located at a network boundary that enables a campus network to connect to external networks. They are primarily used at two differentiation points: the wide area network (WAN) and the internet. The edge router sends or receives data directly from other organizations' networks, using either static or dynamic routing capabilities. In some instances, an organization maintains multiple isolated networks and uses edge routers to link them together instead of using a core router. Edge routers are frequently hardware devices, but their functions can also be performed by software running on a standard x86 server. The sum of all the interconnections of the edge routers across all participating organizations, from its periphery small business and home broadband routers.