Bit Stuffing

Computer Networks: Bit Stuffing in Computer Networks
Topics Discussed:
1) Frame format in HDLC.
2) Framing error.
3) Bit stuffing in HDLC.

Music:
Axol x Alex Skrindo - You [NCS Release]

#ComputerNetworksByNeso #ComputerNetwork #BitStuffing #HDLC

[ahmadomar]

this really saved me while doing my cyber security assignment thanks a lot

[aspiredifferent]

Correct.

The original bit sequence without bit stuffing is

After applying bit stuffing, the bit sequence becomes Here, bit stuffing involves inserting an extra "0" bit after every sequence of five consecutive "1" bits to ensure that the receiver can distinguish between the original "1" bits and the stuffed "0" bits. The stuffed bit sequence is still able to convey the same information as the original bit sequence.

[rajeshprajapati]

Answer to H.W. at 03:50

Given Bit Sequence without Bit Stuffing (I think there is No Beginning and Ending Sequence) :

I as a Sender taking that data bits sequence from upper layer and see three "5 Consecutive 1's". What are they ?



Put 1st=2nd=3rd=0

= Given Bit Sequence with Bit Stuffing in video.

Hence, It is Correct.

[MatsMatsuo]

That's it, that's my life now, everyday an Indian guy (better than me) teach me something. Jokes apart, thank you sir

[AlexLopez-vqks]

This course is great, I understand the explanations, it also helps me to practice English.

Greetings from Mexico🇲🇽

[AbdulAzizLearner]

Great effort.
I think the playlist accessible from the channel has less videos on this Computer Network series than actually produced. Kindly add the remaining if appropriate.
Thank you.

[caesq_r]

guys. dont take an education cyber security course. watching this guy is enough

[kausachan]

It is correct ... Simply remember the fact after 5 consecutive 1s one 0 will be added And here this mechanism is followed... So correct that's it don't confuse with original data getting modified and all. Every non info bit added to the data will be removed by the receiver

[hrichasrivastava]

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I can understand the reson, why you have 1.8 million subscribers.
You have a new subscriber now.

[mellamoakshay]

Question. What if data recieved from upper layers is in fact five zeroes seperated by a one, how will the reciever know whether bit stuffing is applied or not?

[miewtoe]

Just remember - whenever 5 consecutive 1's appear, a 0 will be inserted by the sender, independent of the next value(be it 0 or 1)

Whenever receiver encounters 5 consecutive 1's, it will remove a 0 after it except for begining and the end.

[Kashmiri.]

3:38
What if in the payload there has a pattern similar to will the receiver think that it is stuffed bit or part of payload?

[andreioprescu]

good explanation this actually gave me a revelation

[athulyajose]

3:43 Sir, if considering a case where after 5 consecutive 1's the next one was already 0 and regardless of that bit value we have to stuff the 0 bit and remove while receiving the data in the receiver node?

[myblendd]

Me ayudaste, te lo agradezco. Saludo desde PANAMA

[bayroncabrera]

There is something I dont underestand, what if the receiver find a 0 with the consecutive ones but it turns out is not a bit stuffing but instead is the data itself, would not it be corrupted by the receiver ?

[LordBenjamin]

There's an error in this video at the SOLUTION part.. You consider the bit order from right to left when you trasmit the sequence, and yet you insert the 0 after 5 1's, starting from left to right, when in reality you should add the 0 bit from right to left (after 5 1s)

[tharunkumar]

Sir, i have a doubt that If the reciever recieves the frame without bit in the payload if contains....the reciever will remove this zero and process the frame as this will leads to an error....

[bhaveshvarma]

It is Correct, but I always have doubt that whether it's left side reach first or right side at receiver because if we take right side then the answer should be different because from right side we count 5 ones and put zero.

[circastic]

sir what if we have payload/data consisting of 5 1's and followed 0 and 1.