The gateway is a protocol converter which will translate one protocol into the other If the sending device does not receive an acknowledgment for a segment, it resends that segment A router is a special case of a gateway.
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Examples of layer 1 devices include hubs, repeaters & ethernet cable connectors.
Here, we will explain transport layer in computer network with their functions, responsibilities, duties, services, protocols, and examples!!
A data segment is a service data unit, which is used for encapsulation on the fourth layer (transport layer). So, the key 'devices' are your computers, servers, and other endpoints running the software protocols that embody the transport layer's capabilities It's the intelligence within the hosts that truly defines the transport layer's presence. If you want to understand the open systems interconnection (osi) reference model or need to brush up on what osi means, weβve prepared this osi model cheat sheet for you.
In computing networking, osi model layer 4 provides a lot of services ranging from segmentation of data streams to error checking and data flow controls As mentioned above, the transport layer collects data from the session layer to transmit to the network layer. It sits between the network layer (which delivers packets to the right machine) and the session layer (which manages communication sessions). On the receiving devices, it uses that sequence number to identify missing segments
It sends acknowledgments for all received segments
