What is bit stuffing technique uses in data link layer??
Bit stuffing is the insertion of one or more bits into a transmission unit as a way to provide signaling information to a receiver. The receiver knows how to detect and remove or disregard the stuffed bits.
packet begins and ends with 01111110. To make sure this sequence doesn’t appear again before the end of the packet, a 0 is inserted after every five consecutive 1s.