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....
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.
The protocol field, in the IP header, identifies what kind of data is in the IP packet - the upper-layer protocol. For example, if the code is 6, that means that the data is a TCP segment.
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
The PDU (protocol data unit) @ transport layer (e.g. TCP or UDP) is called as 'segment' .
PDU (protocol data units) -Yuriy-
Protocol Data Services was created on 1999-11-25.