next TCP/IP
up CMPT 165: Review
previous TCP helps IP guarantee delivery


Handling lost datagrams

TCP handles lost datagram by using timers and acknowledgements.

When data arrives at its final destination, the receiver's TCP software sends an acknowledgment back to the source to confirm delivery.

Whenever TCP software sends data, it starts a timer using the computer's internal clock:

TCP's strategy is adaptable:


next TCP/IP
up CMPT 165: Review
previous TCP helps IP guarantee delivery

``CMPT 165: Review'' by Tamara Smyth, Computing Science, Simon Fraser University.
Download PDF version (review.pdf)
Download compressed PostScript version (review.ps.gz)
Download PDF `4 up' version (review_4up.pdf)
Download compressed PostScrip `4 up' version (review_4up.ps.gz)

Copyright © 2011-12-05 by Tamara Smyth.
Please email errata, comments, and suggestions to Tamara Smyth<tamaras@cs.sfu.ca>
School of Computing Science,   Simon Fraser University