There is a difference between link encryption and end-to-end encryption in that link encryption encrypts and decrypts all traffic at each end of a communication line whereas with end-to-end encryption the message is encrypted by the sender at the point of origin and only decrypted by the intended reader

Link Layer
End-to-end encryption is an encryption technique that ensures all data coming from your computer to the destination is completely encrypted.

Link Layer
End-to-end encryption is an encryption technique that ensures all data coming from your computer to the destination is completely encrypted.

Data Encryption Standard. The related link will give you more information

Encryption