1. The document outlines an agenda for a session on the 7 layers of the OSI model. It includes activities, videos, and discussions on each layer. 2. The layers include the physical, data link, network, transport, session, presentation, and application layers. The physical layer deals with signals and transmission. The data link layer contains MAC and LLC sublayers and protocols like Ethernet. The network layer handles addressing and routing with IP. Transport layer offers reliability with protocols like TCP. Higher layers provide other services. 3. The agenda involves warm-ups, teacher demonstrations, student activities, videos, homework, and reflections on each layer and networking concepts like IP addresses and protocols.

1. http://www.stemassiut.info
prepared By Mr. Osama Ghandour
1
1.Read and prepare The C.S. PPT well before
session .
2.During session Engage your team work ,
present , personalize and speak ,Use body
language , move and lead your colleges
The result is a clever , good personality and
communication skills .

2. 7 layers OSI- Agenda
• 5 min Warm up
• 5 min motivating video
• 15 min 1st 3 layers teacher demonstrate
• 5 min Activity 1 – video demonstration
• 5 min ppt motivating audience
• 20 min Act 2 2ed 4 layers - teacher
demonstrate
• 5 min Activity 3 – video demonstration
• 5 min Home work
• 10 min Activity 3 - video demonstration
• 5 min refelection

3. FDDI 3
Activity 1
5 min
listen to a motivating
video
Press here
for on line
Press here
for off line
OR
Warmup

4. Online auto answerd quiz
15 min

5. Packet tracer , Download it , Install it
, use it by designing network.
Then be a clever network admin.

7. Physical Layer Layer1
• The physical layer defines all physical
and electrical specifications for devices
used to interface to the network,
including the shape and layout of pins
in connectors, voltages, cable
specifications and broadcast
frequencies. It provides the means for
transmitting raw bits, but it is not
concerned with MAC addresses, IP
addresses and packets

8. Physical Layer Layer1
• Devices that operate at the physical
layer include repeaters, hubs, network
interface cards (NICs), cables and
connectors.
• Examples of physical layer protocols
are CSMA/CD (carrier sense multiple
access/collision detection), DSL (digital
subscriber line) and RS-232 (which is
commonly used in computer serial
ports).

9. Data link layer Layer2
• Examples of data link protocols are Ethernet for
local area networks (multi-node), the Point-to-Point
Protocol (PPP), HDLC and ADCCP for point-to-point
(dual-node) connections. In the Internet Protocol
Suite (TCP/IP), the data link layer functionality is
contained within the link layer, the lowest layer of the
descriptive model.
• In some networks, such as IEEE 802 local area
networks, the data link layer is described in more
detail with media access control (MAC) and logical
link control (LLC) sublayers; this means that the
IEEE 802.2 LLC protocol can be used with all of the
IEEE 802 MAC layers, such as Ethernet, token ring,
IEEE 802.11, etc., …

10. Data link layer Layer2

11. • Functions of the network layer
include:
• Connection model: connectionless
communication
For example, IP is connectionless
• Host addressing
• Message forwarding
Network Layer layer 3.

12. Network Layer layer 3.
Some Protocols
• DDP, Datagram Delivery Protocol
• DVMRP, Distance Vector Multicast Routing
Protocol
• ICMP, Internet Control Message Protocol
• IGMP, Internet Group Management Protocol
• IPsec, Internet Protocol Security
• IPv4/IPv6, Internet Protocol
• IPX, Internetwork Packet Exchange

13. FDDI 13
Activity 1
5 min
listen to a 7 layers OSI
video
Press here
for on line
Press here
for off line
OR

15. How learning happens?
I hear… I forget;
I see … I remember;
I do … I understand.
15

17. Open
Arduino
software

18. How learning
happens? ….:
We remember ..
20% of what we hear;
30% of what we see;
50% of what we see and hear;
90% of what we see, hear & do.
18
20
30
50
90
hear
see
hear & see
hear, see &
do

21. Transport Layer Layer4
Services
• Connection-oriented communication
• Same order delivery
• Reliability
• Flow control
• Congestion avoidance: Congestion
control
• Multiplexing: Ports

22. Transport Layer Layer4
Some Protocols
This list shows some protocols that are
commonly placed in the transport layers of the
Internet protocol suite, the OSI protocol suite,
NetWare's IPX/SPX, AppleTalk, and Fibre
Channel.
• ATP, AppleTalk Transaction Protocol
• CUDP, Cyclic UDP
• DCCP, Datagram Congestion Control Protocol
• FCP, Fibre Channel Protocol

23. Transport Layer Layer4

24. Session Layer layer5.
Services
• Authentication
• Authorization
• Session restoration (checkpointing and
recovery)

25. Session Layer layer5.
Some Protocols
• ADSP, AppleTalk Data Stream Protocol
• ASP, AppleTalk Session Protocol
• ISO-SP, OSI session-layer protocol (X.225, ISO 8327)
• NetBIOS, Network Basic Input Output System
• PAP, Password Authentication Protocol
• PPTP, Point-to-Point Tunneling Protocol
• RPC, Remote Procedure Call Protocol
• RTCP, Real-time Transport Control Protocol
• SMPP, Short Message Peer-to-Peer
• SCP, Session Control Protocol
• ZIP, Zone Information Protocol

26. Session Layer layer5.

27. Presentation Layer layer6
(syntax layer)
An example of a presentation service
would be the conversion of an EBCDIC-
coded text computer file to an ASCII-coded
file.
Services
• Data conversion[2]
• Character code translation[2]
• Compression[2]
• Encryption and Decryption[2]

28. Presentation Layer layer6
(syntax layer)
Some Protocols
Other protocols sometimes considered at this level
(though perhaps not strictly adhering to the OSI model)
include:
• Apple Filing Protocol (AFP)
• NetWare Core Protocol (NCP)
• Network Data Representation (NDR)
• Telnet (a remote terminal access protocol)
• eXternal Data Representation (XDR)
• X.25 Packet Assembler/Disassembler Protocol(PAD)

29. Presentation Layer layer6
(syntax layer)

30. Application layer Layer7
in OSI
Some Application layer protocols
(Session Layer under OSI model) The IETF definition
document for the application layer in the Internet Protocol
Suite is RFC 1123. It provided an initial set of protocols that
covered the major aspects of functionality of the early
Internet.[1]
• Remote login to hosts: Telnet
• File transfer: File Transfer Protocol (FTP), Trivial File
Transfer Protocol (TFTP)
• Electronic mail transport: Simple Mail Transfer
Protocol (SMTP)
• Networking support: Domain Name System (DNS)
• Host initialization: BOOTP

31. Application layer Layer7
in OSI

32. Application layer Layer7
in OSI

33. FDDI 33
Activity 3
5 min
listen to a 7 layers OSI
video
Press here
for on line
Press here
for off line
OR

34. 34
biomimicry
computer
network
Osama Ghandour Geris
Assiut STEM School

35. Summery
La1 physical used to interface , pins , connectors , bits ,
protocol CSMA/CD
La2 datalink media access control (MAC) , protocol
Ethernet, token ring
La3 network IP , Host addressing Message forwarding ,
protocol IPv4/IPv6, Internet Protocol
La4 transport Flow control , Multiplexing , protocol FCP
La5 session Authentication , Authorization , protocol PAP
La6 presentation Data conversion , Compression ,
Encryption and Decryption, protocol AFP ,
La7 application Electronic mail transport , File transfer ,
protocol SMTP , FTP

36. The following are
examples of IOT- Network
applications

44. References :
• https://en.wikipedia.org/wiki/Application_layer
• https://en.wikipedia.org/wiki/Presentation_layer
• https://en.wikipedia.org/wiki/Session_layer
• https://en.wikipedia.org/wiki/Data_link_layer
• https://en.wikipedia.org/wiki/Transport_layer
• http://www.netacad.com
• STEM Egypt Curriculum

45. CCNA
Certified Computer Network Administrator
this Certificate from Cisco company
www.netacade.com
Exam costs 3000 L.E. in
CISCO centers
But through online exam
is free of charge

46. Home work
• Mansion 3 layers of OSI
• What the tasks of each one
• What the protocols of each one
• Compare between IP & MAC

47. 5 min Reflection
• Mansion one layer of OSI
• What its tasks
• What its protocols
• Compare between IP & MAC
Osama Ghandour Geris
Assiut STEM School 47

48. Be prepared for a
Quiz in every
session

49. Thank you
Mr. Osama Ghandour