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Error Control In Data Link Layer Ppt

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Your cache administrator is webmaster. Fragmentation

  • Large block of data may be split into small frames
    • Limited buffer size
    • Errors detected sooner (when whole frame received)
    • On error, retransmission of smaller frames is needed
    • Prevents one The system returned: (22) Invalid argument The remote host or network may be down. University of Education Receiver sliding window 31. navigate here

      Your cache administrator is webmaster. Your cache administrator is webmaster. Model of Frame Transmission University of Education 6. University of Education Error control in the data link layer is based on automatic repeat request, which is the retransmission of data.

      Flow And Error Control Techniques In Computer Networks

      Lecture 18 & 19 Roadmap University of Education

      • Understand the Following Topics:
        • Flow and Error Control
        • Stop and Wait
        • Sliding window
        • Stop and Wait ARQ
        • Go Back N ARQ
        • Selective Reject If you continue browsing the site, you agree to the use of cookies on this website. The system returned: (22) Invalid argument The remote host or network may be down.

          1. Error Control Note : 13.
          2. Stop and Wait
            • Source transmits single frame
            • Wait for ACK
            • If received frame damaged, discard it
              • Transmitter has timeout
              • If no ACK within timeout, retransmit
            • If ACK damaged, transmitter will not
            • University of Education Go-Back-N ARQ, normal operation 32.

          Go-back-n ARQ

          • Based on sliding window
          • If no error, ACK as usual with next frame expected
          • Use window to control number of outstanding frames
          • If error, reply with rejection
            • Discard that You can keep your great finds in clipboards organized around topics. University of Education Numbered acknowledgments are needed if an acknowledgment is delayed and the next frame is lost. Stop And Wait Protocol Ppt Forouzan Share Email Flowcontrol & error control at data...

              The system returned: (22) Invalid argument The remote host or network may be down. Difference Between Flow Control And Error Control The system returned: (22) Invalid argument The remote host or network may be down. Facebook Twitter LinkedIn Google+ Link Public clipboards featuring this slide × No public clipboards found for this slide × Save the most important slides with Clipping Clipping is a handy University of Education Go-Back-N ARQ Sequence Number Sender and Receiver Sliding Window Control Variables and Timers Acknowledgment Resending Frames Operation 25.

              Your cache administrator is webmaster. Error Control In Data Link Layer Pdf See our Privacy Policy and User Agreement for details. Sliding Window Enhancements

              • Receiver can acknowledge frames without permitting further transmission (receive not ready)
              • Must send a normal acknowledge to resume
              • If duplex, use piggybacking
                • If no data to send, use Sliding Window University of Education 10.

                  Difference Between Flow Control And Error Control

                  Generated Sun, 20 Nov 2016 20:17:47 GMT by s_wx1194 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.6/ Connection Your cache administrator is webmaster. Flow And Error Control Techniques In Computer Networks University of Education Flow and Error Control Flow Control Error Control 3. Flow And Error Control Techniques In Computer Networks Ppt Generated Sun, 20 Nov 2016 20:17:47 GMT by s_wx1194 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.4/ Connection

                  Please try the request again. http://babylonware.com/error-control/error-control-pada-data-link-layer.html Your cache administrator is webmaster. Your cache administrator is webmaster. The system returned: (22) Invalid argument The remote host or network may be down. Flow And Error Control Techniques In Computer Networks Pdf

                  University of Education In Stop-and-Wait ARQ, numbering frames prevents the retaining of duplicate frames. Selective Reject

                  • Also called selective retransmission
                  • Only rejected frames are retransmitted
                  • Subsequent frames are accepted by the receiver and buffered
                  • Minimizes retransmission
                  • Receiver must maintain large enough buffer
                  • More complex logic University of Education Sender sliding window 30. his comment is here Note : 35.

                    Create a clipboard You just clipped your first slide! Flow Control In Computer Networks Pdf Now customize the name of a clipboard to store your clips. University of Education Go-Back-N ARQ: sender window size 34.

                    Go-back-n ARQ
                      • Lost frame
                        • Frame i lost and no additional frame sent
                          • Receiver gets nothing and returns neither acknowledgement nor rejection
                          • Transmitter times out and sends acknowledgement frame with P bit

                    SlideShare Explore Search You Upload Login Signup Home Technology Education More Topics For Uploaders Get Started Tips & Tricks Tools Flow & Error Control Upcoming SlideShare Loading in …5 × 1 Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. University of Education Piggybacking 24. Flow Control In Data Link Layer Pdf The system returned: (22) Invalid argument The remote host or network may be down.

                    Embed Size (px) Start on Show related SlideShares at end WordPress Shortcode Link Flow & Error Control 20,289 views Share Like Download tameemyousaf Follow 0 0 0 Published on Apr Generated Sun, 20 Nov 2016 20:17:47 GMT by s_wx1194 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.5/ Connection Clipping is a handy way to collect important slides you want to go back to later. http://babylonware.com/error-control/error-control-mechanism-data-link-layer.html Please try the request again.

                    Please try the request again. Generated Sun, 20 Nov 2016 20:17:47 GMT by s_wx1194 (squid/3.5.20) University of Education Stop and Wait ARQ Normal Operation 19. The system returned: (22) Invalid argument The remote host or network may be down.

                    University of Education Stop-and-Wait ARQ, lost ACK frame 21. Please try the request again. Generated Sun, 20 Nov 2016 20:17:47 GMT by s_wx1194 (squid/3.5.20) ERROR The requested URL could not be retrieved The following error was encountered while trying to retrieve the URL: http://0.0.0.10/ Connection See our User Agreement and Privacy Policy.

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