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MN (Unit 1, Unit 4, Unit 5, Unit 2, Unit 3) - Coggle Diagram
MN
Unit 1
Chapter 1 Elements of Modern
Networking
1 Prerequisites : Fundamentals of Networking
Network – collection of nodes and links that cooperate for communication
Nodes – computer systems
Internal (routers, bridges, switches)
Terminal (workstations)
Links – connections for transmitting data
Protocol – standards for formatting and interpreting data and control information
2 What is networking
Definition : a network refers to two or more computer that can share the resources, data ,printers on internet connection, application and combination of resources
Type
MAN
WAN
CAN
topology
BUS
STAR
EXTENTED START
osi model
application
Network processing application
presentation
data representations
session
inter host communication
transportation
handle transport issues between host
data transport reliability
create , maintain, delete virtual circuit
provide reliability to faulty detection
information flow control
PDU session
network
PDU packet
provide connectivity and path between session and host
route the data packes
select the best path of data
in network layer QOS (quality of services)
datalink
how to data formatted for transmission
how access to network is control
PDU is frame
physical
define electrical, mechanical, procedure, function specification for physical layer
PDU : Bit
Networking device
router
hub
network card
switch
3 The network ecosystem
End user
the end product consumer that consumes application data adn service's
Network provider
provide the large communication area
mange and maintain network equipment over public and private network
end user connected througth internet using network provider services
connected devices is digital subscribe line ,cable modems and WiMAX Wi-Fi,
Top layer
Application provider
provide the application for end user mainly focuses on mobile user
Application selling
application service provider act as host
Application software execute on provider side
example e-mail
application service provider
host the application
it provide the network accessible to application such as e-mail
provide the content in server
content Provider
informative data share on internet is called content
store on application service provider server
every content provider may not be provide application
2 Type
Data center networking
large number of connection in data center
80% in data center and 20% relay on external network for user reach
IOT nertworking
machan to machan communication
millions of device
4 Network Architecture
A global Network Architecture
component
router
network divice that forwed packet over network
forwarding packet using routing table
forwarding packet using global standard
complete modern networking core work on router they user core router and they all are connected high volume optical links
wavelength division multiplexing is use give multiple logical channel that use for optical bandwidth
Type
Core Router
use in core funtionality
use in ip backbone/core network communication
connecteed withe other core router
also called edge router or aggregation router aggregation router is in enterprise network connected to switches , router connecter external resources to high speed wan network
edge router
also called access router and aggregation router
use in enterprise network in internal communication
is connected privet network wan and switch inter communication
MPSL protocol use in switch for wan communication
data protected vie firewall
it connected via internet, an internet connected via DSL,DSL connected via ISP
1 more item...
wirless mobility for mobile and tablet
signal encoding ,error control, internal structure
multiprotocal lable switch (MPLS)
develop by IEFE
wan packge
32 bit packege
direct reansfer in selected root according service
network efficient
A typical Network hierarchy
Access network
content end user
Layaer Switch
similar to router
this provide the router functionality also
low cost
no wan port. complete network connect to hierarchical
they can communicate the public and privet network
packet forwrding
Distripbuted network
connected the core network
protect network collisions
peer to peer comuniction ,
peer connection to edge router saving memory, processing, transmission capacity
direct communicte to access network ie database,server
Peering
communcation roeuter each other
data forwarding ,rotuer information shearing
core network
it is central network provide the network services and communication the access network ,distributed network
backbone network
communicate the distributed network and other enterprise network
it connected to high performance router ,transmission line ,capacity router for increasing the redundancy
also connected to the high performance database for privet cloud connectivity
4 Internet
IEEE 802.3 standard
use osi model 2 layer pysical and data link layer
easy to understand ,implementation ,low cost
flexible to provide topology
cloud computing
history
concept come from early 2000s
prticulary targeted large enterprise
initially is only for large and small businesses but now consumer also
Characteristics of cloud computing
Broad network accesss
any devices use in any every eg mobile ,laptop
rapid elasticity
you can use that if you want
Mesurment services
monitor your services , resources ,bandwidths
on demand self service
resources automatically increase
Unit 4
Unit 5
Unit 2
Unit 3