A report on Routing and Routing table

The routing process usually directs forwarding on the basis of routing tables.

- Routing

This forwarding table contains only the routes which are chosen by the routing algorithm as preferred routes for packet forwarding.

- Routing table

3 related topics with Alpha

Overall

Network Packet

Computer network

0 links

Set of computers sharing resources located on or provided by network nodes.

Set of computers sharing resources located on or provided by network nodes.

Network Packet
Common network topologies
A sample overlay network
Network links
Fiber optic cables are used to transmit light from one computer/network node to another
2007 map showing submarine optical fiber telecommunication cables around the world.
Computers are very often connected to networks using wireless links
An ATM network interface in the form of an accessory card. A lot of network interfaces are built-in.
A typical home or small office router showing the ADSL telephone line and Ethernet network cable connections
Firewalls
The TCP/IP model and its relation to common protocols used at different layers of the model.
Message flows between two devices (A-B) at the four layers of the TCP/IP model in the presence of a router (R). Red flows are effective communication paths, black paths are across the actual network links.
SONET & SDH
Asynchronous Transfer Mode
Routing calculates good paths through a network for information to take. For example, from node 1 to node 6 the best routes are likely to be 1-8-7-6, 1-8-10-6 or 1-9-10-6, as these are the shortest routes.
Partial map of the Internet, based on the January 15, 2005 data found on opte.org . Each line is drawn between two nodes, representing two IP addresses. The length of the lines is indicative of the delay between those two nodes. This graph represents less than 30% of the Class C networks reachable.

Address resolution and routing are the means that allow mapping of a fully connected IP overlay network to its underlying network.

The routing information is often processed in conjunction with the routing table.

Static routing

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Static routing is a form of routing that occurs when a router uses a manually-configured routing entry, rather than information from dynamic routing traffic.

In many cases, static routes are manually configured by a network administrator by adding in entries into a routing table, though this may not always be the case.

An illustration of hops in a wired network (assuming a 0-origin hop count ). The hop count between the computers in this case is 2.

Hop (networking)

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Passed from one network segment to the next.

Passed from one network segment to the next.

An illustration of hops in a wired network (assuming a 0-origin hop count ). The hop count between the computers in this case is 2.

This prevents packets from endlessly bouncing around the network in the event of routing errors.

A routing table usually contains the IP address of a destination network and the IP address of the next gateway along the path to the final network destination.