Bit stuffing

To overcome this,whenever the sender’s data link layer encounters five consecutive ones in the network layer’s data it automatically stuffs a zero bit

These zeros are then destuffed the receiver’s end

0111111001101111101111101111101001001111110

011011111111111111110010

Data Link Layer

From Network Layer

To Physical Layer

Stuffed Bits

011011111111111111110010

Data Link Layer

To Network Layer

From Physical Layer

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