Chapter 2
Network
Models
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
, Chapter 2: Outline
2.1 Protocol Layering
2.2 TCP/IP Protocol Suite
2.3 OSI Model
, Chapter 2: Objective
❑ The first section introduces the concept of protocol layering
using two scenarios. The section also discusses the two
principles upon which the protocol layering is based. The
first principle dictates that each layer needs to have two
opposite tasks. The second principle dictates that the
corresponding layers should be identical. The section ends
with a brief discussion of logical connection between two
identical layers in protocol layering. Throughout the book,
we need to distinguish between logical and physical
connections.
Network
Models
Copyright © The McGraw-Hill Companies, Inc. Permission required for reproduction or display.
, Chapter 2: Outline
2.1 Protocol Layering
2.2 TCP/IP Protocol Suite
2.3 OSI Model
, Chapter 2: Objective
❑ The first section introduces the concept of protocol layering
using two scenarios. The section also discusses the two
principles upon which the protocol layering is based. The
first principle dictates that each layer needs to have two
opposite tasks. The second principle dictates that the
corresponding layers should be identical. The section ends
with a brief discussion of logical connection between two
identical layers in protocol layering. Throughout the book,
we need to distinguish between logical and physical
connections.
