B-ISDN Reference Model
Thread Rating:
  • 0 Vote(s) - 0 Average
  • 1
  • 2
  • 3
  • 4
  • 5
computer science crazy
Super Moderator

Posts: 3,048
Joined: Dec 2008
03-09-2009, 04:51 PM

ATM makes B-ISDN a reality. The Integrated services Digital Network (ISDN) evolved during the 80's. It carried a basic channel that could operate at 64kbps (B-channel) and combinations of this and others (D-channels) formed the basis of communication on the network. In the new B-ISDN world, this is supposed to supply data, voice and other communication services over a common network with a wide range of data speeds. To understand a lot of the terminology in ATM-land, it is necessary to understand the B-ISDN Reference Model. Just as the ISO seven-layer model defines the layers for network software, this model defines layers for the ATM network.
The header is broken up into the following fields.

" Generic Flow Control (GFC)
" Virtual Channel Identifier (VCI)
" Virtual Path Identifier (VPI)
" Payload type (PT)
" Cell Loss Priority (CLP)
" Header Error Control (HEC)

Network - to - Network interface

It is necessary for the switches to know how to send the calls along. There are several techniques that could be adopted, but the most useful one for the 1P users is called Private Network-to Network Interface (PNNI)The PNNI is an interface between switches used to distribute information about the state and structure of the network to establish circuit to ensure that reasonable bandwidth and Qos contract can be established and to provide for some network management functions." Convergence Sublayer:
The function provided at this layer differ depending on the service provided. It provides bit error correction and may use explicit time stamps to transfer timing information.

Segmentation and reassembly sublayer:

At this layer the convergence sublayer-protocol data unit is segmented and a header added. The header contains 3 fields
Sequence Number used to detect cell insertion and cell loss.
Sequence Number protection used to correct and detect errors that occur in the sequence number. Convergence sublayer indication used to indicate the presence of the convergence sublayer function
Use Search at http://topicideas.net/search.php wisely To Get Information About Project Topic and Seminar ideas with report/source code along pdf and ppt presenaion

Important Note..!

If you are not satisfied with above reply ,..Please


So that we will collect data for you and will made reply to the request....OR try below "QUICK REPLY" box to add a reply to this page
Tagged Pages: isdn model pdf, pdf bisdn refrence model, b isdn reference model of atm, reference model of b i s d n, reference model of bisdn, ppt for b isdn, b isdn versus iso osi reference model,
Popular Searches: seminar report of isdn, broadband isdn pdf, reference models, the compositional layers of the earth, seminar report on osi reference model, ppt for isdn, isdn tanenbaum ppt,

Quick Reply
Type your reply to this message here.

Image Verification
Please enter the text contained within the image into the text box below it. This process is used to prevent automated spam bots.
Image Verification
(case insensitive)

Possibly Related Threads...
Thread Author Replies Views Last Post
  Wireless Sensor Network Security model using Zero Knowledge Protocol seminar ideas 2 1,413 31-03-2015, 09:08 AM
Last Post: Guest
  credit card fraud detection using hidden markov model project download jaseelati 0 265 10-01-2015, 01:34 PM
Last Post: jaseelati
  Clipping Model in Open GL Report study tips 0 253 18-06-2013, 02:53 PM
Last Post: study tips
  A Probabilistic Model of Visual Cryptography Scheme with Dynamic Group report study tips 0 590 05-06-2013, 01:02 PM
Last Post: study tips
  Transform, edit, and reverse-engineer a UML model into Java source code study tips 0 348 03-06-2013, 02:49 PM
Last Post: study tips
  ISDN REPORT study tips 0 303 17-05-2013, 04:13 PM
Last Post: study tips
  An Improved Hybrid Model for Molecular Image Denoising pdf study tips 0 265 14-05-2013, 01:08 PM
Last Post: study tips
  An SMDP-Based Service Model for Inter domain Resource allocation in mobile Cloud ppt study tips 0 507 06-05-2013, 04:23 PM
Last Post: study tips
  The VHDL Golden Reference Guide pdf study tips 0 352 02-05-2013, 03:46 PM
Last Post: study tips
  7 Layer OSI Model ppt study tips 0 409 20-04-2013, 02:50 PM
Last Post: study tips