Data communication

1. 1
Network Security and Session layers
© 2020 Dr. RK Singh ECD, IET Lucknow. All rights reserved
Dr. Rajiv Kumar Singh
Department of Electronics & Communication Engineering
Institute of Engineering and Technology, Lucknow
(An Autonomous Constituent Institute of Dr. A.P.J. Abdul Kalam Technical University, U.P., Lucknow)
rksingh@ietlucknow.ac.in

2. 13-1 Network Security – Introduction

3. NEED FOR NETWORK SECURITY

4. TYPES OF NETWORK SECURITY

5. TYPES OF NETWORK SECURITY

6. TYPES OF NETWORK SECURITY

7. AUTHENTICATION

8. NETWORK ATTACK METHODS

9. ADVANTAGES

10. OSI MODEL
The Open Systems Interconnection model is a
reference model from the International
Organization for Standardization that "provides a
common basis for the coordination of standards
development for the purpose of systems
interconnection.

11. SESSION LAYER
The Session Layer is the 5th layer in the Open System
Interconnection (OSI) model. This layer allows users on
different machines to establish active communications
sessions between them.
It is responsible for establishing, maintaining,
synchronizing, terminating sessions between end-user
applications. In Session Layer, streams of data are
received and further marked, which is then resynchronized
properly, so that the ends of the messages are not cut
initially and further data loss is avoided.

12. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

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14. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

15. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

16. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

17. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000

18. McGraw-Hill ©The McGraw-Hill Companies, Inc., 2000