Sequence number - transport layer, Computer Networking

Assignment Help:

Sequence Number

After  the bytes have been numbered TCP assigns a sequence number to each segment   that is  being sent. These sequence number for each segment  is the number of the  first  byte  carried  in that  segment.

The  value  in the  sequence  number fields of a segment defines the number of the first  data byte  contained in that  segment when a segment carries a combination of data and control  information. It uses a  sequence number. If a segment  does not  carry  user data. It does  not logically define a sequence number. The field  is there but the value  is not  valid. However some  segments  when carrying  only  control information  needs a sequence  number to allow  an acknowledgment form  the receiver. These segments  are used  for connection  establishment. Termination  or  abortion. Each  of these segment  consumes one sequence number  as through it carried i byte but  there are no actual data. If the randomly  generated  sequence number  is x the first  data  byte  is numbered x +1. The  byte  x is  considered a phony byte  that  is used for a control  segment  to a connection.


Related Discussions:- Sequence number - transport layer

Calculate the efficiency of stop-and-wait ARQ, 5. Suppose that frames are 1...

5. Suppose that frames are 1250 bytes long including 25 bytes of overhead. Also assume that ACK frame are 25 bytes long. Calculate the efficiency of Stop-and-Wait ARQ in a system t

Distinguish between udp and tcp, Question: (a) Distinguish between UDP ...

Question: (a) Distinguish between UDP and TCP. (b) You have been asked to design and implement a chat application for a university. Which protocol could you used TCP or UDP

Which osi reference layer is concerned with logical address, There are two ...

There are two logical addressing :- a) Datalink is physical (hardware) addressing. b) Network is logical (software) addressing.

Show the class D and class E addresses, Q. Show the Class D and Class E Add...

Q. Show the Class D and Class E Addresses? Class D and Class E Addresses Class D - reserved for multicast addresses Multicasting - transmission method which allo

Cells vs packets, ATM designers select cells over packets because of the fo...

ATM designers select cells over packets because of the following facts: Cells are fixed length and memory management for them is easy. Handling variable length packets tends

Determine about the complete and proper security, Determine about the Compl...

Determine about the Complete and proper security Complete and proper security configuration and administration is indeed a complex issue. One should think carefully about the

The forall statement, The FORALL Statement The FORALL statement allows ...

The FORALL Statement The FORALL statement allows for more common assignments to sections of an array. A FORALL statement has the general form.               FORALL ( triplet

What is silly window syndrome, What is silly window syndrome? It is a d...

What is silly window syndrome? It is a difficulty that can ruin TCP performance. This problem happens when data are passed to the sending TCP entity in large blocks, but an int

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd