Headers and frame format, Computer Networking

HEADERS AND FRAME FORMAT:

 LAN technology standards describe frame format for every technology. All contemporary standards use the following basic format.

a) Frame header b) payload

 Frame header has other identifying information and address. Information typically in fields has fixed location and size. The data area may differ in size.

The Ethernet frame format is given in the figure.

516_HEADERS AND FRAME FORMAT.png

Figure: the Ethernet frame format

The different kinds of ether frame format and their purposes is illustrate below:

FIELD                                                PURPOSE

Preamble                                       Receiver synchronization

Destination Address                         shows intended receiver device

Source Address                                Hardware address of sender device

Frame Type                                     kind of data carried in frame

Data                                               Frame payload

CRC                                               32-bit CRC code

Posted Date: 10/27/2012 8:37:42 AM | Location : United States







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