May 2024
Intermediate to advanced
309 pages
13h 33m
English
Content preview from Data Communications and Computer Networks by Pearson
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164 Data Communications and Computer Networks
Length or Type: It is a 2-byte-long eld that denes either the length or type of data. The
Ethernet originally used this eld as a type eld to dene the total length of data in upper-layer
protocols, while the IEEE standard used it as the length eld to indicate total number of bytes in
data field
Data: This field carries data arriving from upper-layer protocols. The amount of data stored in this
field can range between 46 and 1,500 bytes
CRC: It is a 4-byte-long field that contains error detection information. In case of Ethernet
MAC frame, it is the CRC ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.