Length- transport layer, Computer Networking

Assignment Help:

Length

This is a 16 bit  field  that  defines  the total  length  of the user  datagram, header  plus data. This 16 bit  can define  a total  length  of a 0 to 65, 535 bytes. However the  total  length  needs  to be much  less  because  a UDP is stored in an IP datagram with a total  length  of 65, 535 bytes,

The  length  fields in a UDP user datagram is actually not  necessary. A user datagram  is encapsulated in an IP datagram. There is  a fields  in the IP datagram that defined the total  length. There is another  fields in the IP datagram  that defines  the length  the header. So  if we subtract the value of the second field from  the first  we can find the  length  of a UDP  Dataram that is  encapsulated in IP datagram.

UDP length = IP length - IP header s length

However the designers of the UDP protocols  felt  that it  was more efficient  for the  destination  UDP to calculate the length  of the data  from the  information  provided  in the  UDP user  datagram rather than ask the IP software to supply  this information. We should  remember  that when  the IP  software  delivers the UDP user datagram to the UDP layer. It has  already dropped  the IP header.


Related Discussions:- Length- transport layer

Importance of implementing a fault tolerance system, What is the importance...

What is the importance of implementing a Fault Tolerance System? Are there limitations? A fault tolerance system makes sure continuous data availability. This is done by elimin

Determine the application areas of intranet, Determine the Application area...

Determine the Application areas of intranet The uses of an Intranet are only limited by imagination. Some of the larger sectors where the Intranet can be easily and success fu

Describe wdm, Question 1 Discuss the architecture of new generation networ...

Question 1 Discuss the architecture of new generation networks. Question 2 Explain the functioning of datagram packet switching and virtual circuit packet switching Quest

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

Private networks, Private  Networks The information routes from one ne...

Private  Networks The information routes from one networks  to another  network through  a leased line. If an  organization needs privacy  can use a private networks  or networ

Packet cost - network layer and routing , Packet  Cost Both  distance ...

Packet  Cost Both  distance vector and link  state  routing  are lowest  algorithms. Tow factors  govern  how  cost is applied to packets  in determines  a route. Cost  is a

Define character stuffing, Define Character Stuffing? In byte stuffing ...

Define Character Stuffing? In byte stuffing (or character stuffing), a particular byte is added to the data section of the frame when there is a character with the same pattern

Bootrom and memory layout, Memory Memory Layout   BOOT...

Memory Memory Layout   BOOTROM This device stores the information of  the startup diagnostic  code in permanently. It performs diagnostics of  hardware  wh

Define the analog audio and video conferencing systems, Define the analog a...

Define the analog audio and video conferencing systems When analog audio and video conferencing systems were used, the procurement and installation was complex, less reliable a

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