if upper layer are receiving error free data from data layer why error control is required at data layer.
pls explain me end to end principle also!
pravdhan 0 Newbie Poster
rubberman 1,355 Nearly a Posting Virtuoso Featured Poster
The transport layer deals with errors caused during transmission. The data (application) layer deals with errors caused by application errors, such as data format errors. Two different things, dealt with by the layer responsible for them.
jingda commented: Expert! +8
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