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

What is meant by symmentric multiprocessing (smp), It treats all processors...

It treats all processors as equivalent. Any processor can do the work of any other processor. Applications are separated into threads that can run simultaneously on any available p

Internet service provider (isp), Internet  Service Provider (ISP) Thi...

Internet  Service Provider (ISP) This  supper fast  network  spanning  the world  from  one major  metropolitan area to another  is provided  by a handful of national internet

What does the user datagram protocol (udp) , UDP is connectionless, and doe...

UDP is connectionless, and does not give error checking. But remember, error checking can happen at other layers too.

What is routing region, What is routing region? When hierarchical routi...

What is routing region? When hierarchical routing is used, the routers are separated into what we call regions, with each router knowing all the details about how to route pack

Logged into a router, You are logged into a router, what command would repr...

You are logged into a router, what command would represent you the IP addresses of routers linked to you? Ans)show cdp neighbors detail

Show the basic handover types in umts, Question: (a) Show the main elem...

Question: (a) Show the main elements of the GSM system architecture and describe their functions. (b) Looking at the HLR/VLR database approach used in GSM-how does this arc

Describe the omni-directional and the directional antennas, Question: a...

Question: a) Describe the following two approaches used towards wireless frequency regulation. i. Regulated Band ii. Unlicensed Band b) An antenna is an electrical c

Program to load the router with the supplied scripts-ccna, Load the Router ...

Load the Router with the Supplied Scripts Enable ! config term ! hostname Router1 ! enable secret class ! no ip domain-lookup !  interface FastEth

Calculate the modulation index and find the bandwidth, Consider a signal x(...

Consider a signal x(t) = 10 cos(2πfct + 4 cos 2πfmt). Assume frequency modulation. The message frequency fm = 2:3 kHz. Calculate the modulation index and find the bandwidth when

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