data reassembled at the destination =))
Packet
PDU (protocol data units) -Yuriy-
data protocol is used to route the data from the source to destination, and it is also used for congestion control, flow control & error control in the data that is being transmitted........... data protocol is responsible for the end to end delivery of the data, which may be in the form of messages, frames, packets across the different layers of the protocol architecture....
Yes, TCP (Transmission Control Protocol) is a reliable protocol for data transmission. It ensures that data is delivered accurately and in the correct order by using error checking and retransmission of lost packets.
Protocol layers may be defined in such a way that the communications within a layer is independent of the operation of the layer being being used. This is known as "peer-to-peer" communication and is an important goal of the OSI Reference Model. Each layer provides a protocol to communicate with its peer. When a packet is transmitted by a layer, a header consisting of Protocol Control Information (PCI) is added to the data to be sent. In OSI terminology, the packet data (also known as the Payload) is called a Protocol Data Unit (PDU). The packet so-formed, called a Service Data Unit (SDU) is passed via a service access point to the layer below. This is sent using the service of the next lower protocol layer.
protocol data unit
Protocol Data Unit (PDU)
PACKETS
frame
In the context of smart cards, an application protocol data unit is the communication unit between a smart card reader and a smart card. The structure of the APDU is defined by ISO/IEC 7816-4 Organization, security and commands for interchange.
1 tcp transmission control protocol 2 udp protocol
Packet
Stop and wait protocol is used in telecommunications as a method to send information between two connected devices. It sends information in a Protocol Data Unit and waits for a response.
Bridge protocol data unit BPDU
A Protocol Data Unit (PDU) is a unit of data specified in a protocol of a given layer of the OSI model. Each layer has its own PDU: at the Application layer, it's called a message; at the Transport layer, it's a segment (or datagram in UDP); at the Network layer, it's a packet; at the Data Link layer, it's a frame; and at the Physical layer, it's a bit or symbol. These PDUs help in managing and encapsulating data as it traverses through the layers of the OSI model.
PDU (protocol data units) -Yuriy-
The PDU (protocol data unit) @ transport layer (e.g. TCP or UDP) is called as 'segment' .