By E. Bryan Carne
A reference consultant to the codes, protocols, networks, indications and kit that give the chance to speak utilizing TCP/IP.
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Extra resources for A professional's guide to data communication in a TCP/IP world
CP-B begins to send packets containing file segments to CP-A. 21. CP-A receives the packets, strips off header and trailer material, checks for errors, and begins to reassemble the file. 22. CP-A requests CP-B to re-send corrupted packets. 23. In their management files, CP-A and CP-B keep track of requests for resend to know which have been resent successfully. 24. CP-B sends the final packet and makes sure all resend requests have been honored. 25. CP-A reassembles the complete file and acknowledges error-free receipt to CP-B.
16. CP-B consults a list of valid users, or by other means determines that it may respond to the request. 17. CP-B requests File yyyy from its operating system (OS-B). 18. OS-B transfers a copy of the file to the control of CP-B. 19. CP-B conditions the file and segments it to be compatible with the communication facilities. 20. CP-B begins to send packets containing file segments to CP-A. 21. CP-A receives the packets, strips off header and trailer material, checks for errors, and begins to reassemble the file.
Peer-to-peer communication is required to agree upon coding, compression, and encryption algorithms. They are included in the presentation header. 3 Session Layer The session layer directs the establishment, maintenance, and termination of the connection. It manages data transfer, including registration and password formalities, and may insert synchronization points into the information flow to facilitate restarting should a catastrophic failure occur. When sending, the session layer: • Supervises the use of passwords and other checks.
A professional's guide to data communication in a TCP/IP world by E. Bryan Carne