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

Show the drawbacks of go-back-N, Q. Show the Drawbacks of Go-back-N? D...

Q. Show the Drawbacks of Go-back-N? Drawbacks of Go-back- N - Inefficient - Every out of order received packets are discarded (receiver side is simplified) - This

Direct isp service through leased line, The most expensive method of access...

The most expensive method of accessing the Internet is to employ leased lines that directly connect to the ISP. This will enhance access rate to anywhere between 64 K and 1.5 Mbps,

What do you mean by flow control, Q. What do you mean by Flow Control? ...

Q. What do you mean by Flow Control? - How much data sender is capable to transmit before receiving the ACK - Why flow control? - Limitation with receiver 1. Processin

What is internet, I have a project on Information Communication Technology(...

I have a project on Information Communication Technology(I.C.T). So sir I want to know that what is internet? and how it works?

E-NRZ, A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit ...

A modified NRZ code known as enhanced-NRZ (E-NRZ) operates on 7-bit words; inverting bits 2,3,6 and 7; and adding one parity bit to each word. The parity bit is chosen to make the

Explain the layer which is closer to the user, There is only an applicatio...

There is only an application layer which is closer to user and also gives many application which user directly linked.for ex:- web browser

What is a web server, This new model of Client/Server having of thin, porta...

This new model of Client/Server having of thin, portable, "universal" clients those talks to super fat servers. In the easiest form, a web server returns documents when clients ask

Show VLAN membership and configuration, Q. Show VLAN Membership and Configu...

Q. Show VLAN Membership and Configuration? VLAN Membership - May be classified by - Switch port numbers - MAC addresses - IP addresses - IP multicast addresse

When it comes to networking what are rights, When it comes to networking, w...

When it comes to networking, what are rights? Rights refer to the authorized permission to perform exact actions on the network. Every user on the network can be assigned indiv

What is ring topology, What is Ring topology The network consists of a ...

What is Ring topology The network consists of a set of repeaters joined by point-to-point links in a closed loop. Each station attaches to the network at a repeater and can tra

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