TRANSPORT LAYER SESSION0320201128173920_PPT3-W2-S3-R0 (1).ppt
1. Course : COMP8005 – Network and Cyber Security
Period : September / February 2020-2021
Transport Layer
Session 03
KDS – Name SME
2. These slides have been adapted from:
Cisco Networking Academy
Network Fundamental – Chapter 4
OSI Transport Layer
Acknowledgement
3. Objectives
• Explain the role of Transport Layer
protocols and services in supporting
communications across data networks
• Analyze the application and operation of
TCP mechanisms that support reliability
• Analyze the application and operation of
TCP mechanisms that support reassembly
and manage data loss.
• Analyze the operation of UDP to support
communicate between two processes on
end devices
5. Transport Layer Role and
Services
• Primary responsibilities
• Tracking the individual communication
between applications on the source and
destination hosts
• Segmenting data and managing each piece
• Reassembling the segments into streams of
application data
• Identifying the different applications
18. Transport Layer Role and
Services
• Describe the role of segments in the
transport layer and the two principle ways
segments can be marked for reassembly.
19. Application and Operation of TCP
Mechanisms
• Trace the steps that show how the TCP
reliability mechanism works as part of a
session
