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source and destination IP address
The physical address is added
port numbers
By encapsulation process data is put in a nutshell with all basic protocol information at each and every OSI layer. During this phase of network layer each layer conveys and exchange information to its neighboring layer. This is done utilizing Protocol Data Units.
source and destination port number or two applications communicating the data
two applications communicating the data
Encapsulation is the process of adding header information to the layers' data "payload". As the "payload" is passed from one TCP/IP (or OSI) layer to the next, encapsulating layer information is wrapped around the data. So, for example, if the application layer produces a data payload for transmission, it encapsulates it with application-layers headers, which then gets passed to the presentation layer. The presentation layer does the same and so down the protocol stack before transmission across the physical media. At the destination, the process is reversed by way of de-encapsulation where the headers are stripped-off by each matching layer at the destination. 1. Application, Presentation and Session layers create data. {Encapsulation headers added by layers} 2. Transport layer coverts data into segments for transport across the network. {Encapsulation headers added by layer} 3. Network layer converts segments into packets (or Datagrams). {Encapsulation headers added by layer} 4. Data Link layer converts packets (and datagrams) into Frames and the Data Link header is added. {Encapsulation headers added by layer} 5. Physical - frames are converted into bits for transmission over the physical media.{Encapsulation headers added by layer}
encapsulation
Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.Encapsulation. Actually, this is one type of encapsulation; encapsulation occurs at several layers.
internet
layer 2
It first occurs at the application layer.