bus
transport protocol control the transportation of data and choose the best way for transmit ion.
Also called signal topology. Every LAN has a topology, or the way that the devices on a network are arranged and how they communicate with each other. The way that the workstations are connected to the network through the actual cables that transmit data -- the physical structure of the network -- is called the physical topology. The logical topology, in contrast, is the way that the signals act on the network media, or the way that the data passes through the network from one device to the next without regard to the physical interconnection of the devices. Logical topologies are bound to the network protocols that direct how the data moves across a network. The Ethernet protocol is a common logical bus topology protocol. LocalTalk is a common logical bus or star topology protocol. IBM's Token Ring is a common logical ring topology protocol. A network's logical topology is not necessarily the same as its physical topology. For example, twisted pair Ethernet is a logical bus topology in a physical star topology layout. While IBM's Token Ring is a logical ring topology, it is physically set up in a star topology.
transport protocol control the transportation of data and choose the best way for transmit ion.
by using tokens
The transmission control protocol or TCP is used for connection oriented transmissions of data into a computer. The user datagram protocol or UDP is used to transmit simpler data into a computer.
To transmit data, you need several things, including:* A source of power * A protocol * A medium, such as a cable or fiber optic * Some sort of device that does the transmitting and receiving * The data itself
A protocol is a set of rules for describing how to successfully exchange information between two systems.
Computers are allowed to transmit data only when they possess a token.Electronic tokens are passed sequentially to each other.
this protocol routes data packets between networks . IP address specify the locations of the source and destination nodes in the topology of routing system.
A token bus is a type of network which uses the token ring protocol. The protocol is implemented over a virtual ring using coaxial cable. A token is passed around the ring, so that only one computer has the right to transmit data. If the chosen computer doesn't have any data to transmit, the token is passed to the next computer.
Classical Aloha is a random access protocol used in satellite communication systems where users can transmit data at any time without coordination. When a user wants to transmit data, it sends the data and waits for an acknowledgment. If no acknowledgment is received, the user retries after a random time interval.