# Point to point network topology

Point to Point Network Topology: In a point-to-point architecture, two nodes (for example, PCs) in a network communicate directly to each other via a LAN cable or other data transmission medium. This is the most straightforward and cost-effective method of establishing a computer network. Because the underlying network is only used by two parties, the connecting link’s whole capacity is reserved for the two nodes. The network can only have two nodes, which is a significant disadvantage.

Point to point topology is a method of linking two nodes (a computer, a laptop, a mobile device, a router, a hub, or a switch) via a common media. A wired cable or a wireless satellite can be used as the medium. Two nodes are frequently placed near each other in this architecture. A router or hub can also be a node. A single connection is created between a computer and a router, hub, or switch in the case of a router or hub.

## Point to point topology diagram:

Point to point Topology network Diagram is as below.

Simplex, half-duplex, or full-duplex communication between two nodes is possible. Only one node can transfer data in the simplex form of communication. Both devices (nodes) can communicate data in half-duplex mode, but only one at a time. Both devices can communicate data at the same time in full-duplex mode. Microwave, dedicated fibre, or leased line can all be used to build a connection.

The remote control of the air conditioner in the home is one of the most basic instances. When a point-to-point connection is used between two points, it is called a point-to-point connection.

## Point-to-point network connection utilising a protocol:

Other networks, such as WAN or satellite lines, use point-to-point topologies as well. Although the endpoints (placed at different locations) do not link via a direct cable in WAN, they do establish a direct tunnel between them. In a conventional WAN, the two distant routers use a point-to-point protocol to create a tunnel (PPP). According to the OSI model, the connection operates at the data link layer. Frames are transported directly from source to destination.

## Examples of a point-to-point topology:

The link between the TV and the remote control

The link between the air conditioner and the remote control

A LAN (local area network) is a network that connects two computers.

A router’s connection to another router

A router’s and a workstation’s connection.

### Advantages of Point to Point Topology:

Very simple to maintain; if a wire breaks, you can replace it in a matter of seconds.

Maximum bandwidth usage of the underlying connected connection

In comparison to any other network topology type, this is the simplest.

When compared to any other network connection type, there is the least amount of communication delay.

When you simply need to connect two nodes, this is a low-cost solution.

### Disadvantages of Point to Point Topology:

The network’s performance is solely dependent on a single link. The entire network will stop working if the common connection goes down.

Because a direct connection is required, topology cannot be spread to a vast area. Two computers, for example, may be far apart if they are in a multistory structure.

Because there is just one server or client, if one fails, the entire system will stop working. The network cluster is not available to you. Any database server will suffer as a result of this.

Only when the two devices are close to each other, such as when connecting a printer, is this method applicable.

## Point to point connection type or application:

More than cable, there are a few other sorts of point-to-point connections or applications.