Day 01 OSI
Transcript of Day 01 OSI
-
8/3/2019 Day 01 OSI
1/29
1
-
8/3/2019 Day 01 OSI
2/29
2
CCNACisco Certified Network Associate
-
8/3/2019 Day 01 OSI
3/29
3
Course Introduction
-
8/3/2019 Day 01 OSI
4/29
4
Cisco Career Certifications
Professional
CCIE
CCNPCCNP
CCNACCNAAssociate
http://www.cisco.com/go/certifications
Recommended Training Through
Cisco Learning Partners
RequiredExam
CCNA
INTRO andICND
Cisco Certified Network Associate
Introduction to Cisco NetworkingTechnologies and InterconnectingCisco Network Devices
Expert
CCNA Exam 640-801
-
8/3/2019 Day 01 OSI
5/29
5
How to be CCNA certified ?
Option 1Pass the CCNA exam 640-801
(60-70 questions in 2 hours)
Option 2
Pass the INTRO exam 640-821
(40-50 question in 1.5 hours)+
Pass the ICND exam 640-811
(40-50 question in 1.5 hours)
-
8/3/2019 Day 01 OSI
6/29
6
Cisco Different Certifications Fields
CCIE Routing
and Switching
CCNP
CCNA
Network Implementation Network Design
None
CCNP
CCDA
or
CCNA
CCIE
Service Provider
CCIP
CCNA
Network Service Provider
CCIE
Security
CCSP
CCNA
Network Security Voice Networks
CCIE
Service Provider
CCIP
CCNA
Storage Networking
CCIE
Voice
CCVP
CCNA CCNA
None
CCIE
Storage Networking
-
8/3/2019 Day 01 OSI
7/29
7
Cisco Qualified Specialist
Access Routing and LAN Switching
Content Networking IP Communications Certifications
Network Management Certifications
Optical Certification
Storage Networking Certifications
VPN and Security Certifications
Wireless LAN Certifications
Sales Specialist
One exam gives you one specialist certificate
-
8/3/2019 Day 01 OSI
8/29
8
Course Topics
- Introduction , OSI , TCP/IP
- Physical Layer , Data Link Layer
- Network layer , IP Addressing , Subnetting
- Transport Layer
- Introduction to Cisco IOS
- Routing Protocols ,Distance Vector ,RIP v.1, IGRP- Link State , OSPF
- EIGRP , RIP v2 , Route Summarization , VLSM
- Access List , NAT
- Switching- Introduction to WAN
- ISDN
- Frame Relay
-
8/3/2019 Day 01 OSI
9/29
9
Network:
is basically all the components (H/W &
S/W) involved in connecting computer across
small and large distance
Importance of Networks:
Easy access and sharing of information
Sharing of expensive devices and networkresources
Modern Technologies (IP telephony, Video
on Demand, .etc)
Networking Technologies
-
8/3/2019 Day 01 OSI
10/29
10
Network components
Network has three main components
Computers (servers and hosts)
- Source of applications (network aware applications)
- ex: HTTP (Hyper Text Transmission Protocol),
FTP (File Transfer Protocol),
SNMP (Simple Network Management Protocol)
Telnet
Network Devices
- Devices that interconnect different computers together
- ex: Repeaters, hub, bridge, switch, router, NIC and modems
Connectivity- Media that physically connect the computers and network devices
- ex: Wireless and cables
-
8/3/2019 Day 01 OSI
11/29
11
Network Types
LAN (Local Area Network):
It is a group of network components that work
within small area
MAN (Metropolitan Area Network):It is a group of LANs that are interconnected
within small area
WAN (Wide Area Network):It is a group of LANs that are interconnected
within large area
-
8/3/2019 Day 01 OSI
12/29
12
Network Topologies
Topology:
How devices are connected together
Physical Topology: It describes how devices are physically cabled
Logical Topology: It describes how devices communicate across
physical topology ex. unicast , broadcast , multicast
-
8/3/2019 Day 01 OSI
13/29
13
Reference Models
- describe data transfer standards
- a framework (guideline) for network
implementation and troubleshooting
- divides complex functions in to simpler
components
- Reference model types :
- OSI- TCP/IP
-
8/3/2019 Day 01 OSI
14/29
14
Reference Models
7 Application
6 Presentation5 Session
4 Transport
3 Network
2 Data Link
1 Physical
Application
Transport
Internet
Network
Access
-
8/3/2019 Day 01 OSI
15/29
15
The OSI Reference model
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
transmission example
AB
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
-
8/3/2019 Day 01 OSI
16/29
16
The Application Layer-7Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This layer deal with
networking applications.
Examples:
y Email
y Web browsers
PDU - User Data
-
8/3/2019 Day 01 OSI
17/29
17
The Presentation Layer-6Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This layer is responsible
for presenting the data in
the required format which
may include:
y Encryption
y Compression
PDU - Formatted Data
-
8/3/2019 Day 01 OSI
18/29
18
The Session Layer-5Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This layer establishes,
manages, and terminates
sessions between two
communicating hosts.
Example:
y Client Software
( Used for logging in)
PDU - Formatted Data
-
8/3/2019 Day 01 OSI
19/29
19
The Transport Layer-4Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This layer breaks up the
data from the sending host
and then reassembles it in
the receiver.
It also is used to insure
reliable data transport
across the network.
PDU - Segments
-
8/3/2019 Day 01 OSI
20/29
20
The Network Layer-3Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
Sometimes referred to as the
Cisco Layer.
Makes Best Path
Determination decisions
based on logical addresses
(usually IP addresses).
PDU - Packets
-
8/3/2019 Day 01 OSI
21/29
21
The Data Link Layer-2Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This layer provides reliable
transit of data across a
physical link.
Makes decisions based on
physical addresses (usually
MAC addresses).
PDU - Frames
-
8/3/2019 Day 01 OSI
22/29
22
The Physical Layer-1Layer
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link1 Physical
This is the physical mediathrough which the data,
represented as electronic
signals, is sent from the
source host to thedestination host.
Examples:
y UTPy Coaxial (like cable TV)
y Fiber optic
PDU - Bits
-
8/3/2019 Day 01 OSI
23/29
23
Encapsulation Process
-
8/3/2019 Day 01 OSI
24/29
24
TCP/IP model
Application
Transport
Internet
Network
Access
7 Application
6 Presentation
5 Session
4 Transport
3 Network
2 Data Link
1 Physical
-
8/3/2019 Day 01 OSI
25/29
25
The Application Layer
-
8/3/2019 Day 01 OSI
26/29
26
The Transport Layer
reliable
service
unreliable
service
-
8/3/2019 Day 01 OSI
27/29
27
The Internet Layer
IP addressing , routing
-
8/3/2019 Day 01 OSI
28/29
28
The Network Access Layer
L2 LAN technologies : Ethernet , Tokenring , FDDI
L2 WAN technologies : Point-to-Point (HDLC , PPP) ,
Frame relay , X.25 , ATM
-
8/3/2019 Day 01 OSI
29/29
29
Hierarchical Network Model