Introduction to CCNA Routing & Switching

BN1023 – Demo PPT

Demo CCNA

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CCNA Routing & switching

Types of N/WLAN: - Network within a campusMAN: - Network connecting various cities.WAN: - Internet on while worldN/w Devices:-Switches, Hubs, Routers,

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What is SubNetting ?

OSI modelTo address the problem of networks increasing in size and in

number the international organization for standardization

researched many network schemes and recognized that there was a

need to create a network model.

This would be help network bulders implement networks that could

communicate and work together

ISO therefore, released the OSI reference model in 1984.

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Router configuration

Router always has 2 configurations:-

Running config:-

IN ram determines how the routers is currently operating

Show runnin-config

STARTup config:-

In NVRAM, determines how the router will operate after

next reload

Show startup-config

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Logging into the router

-router>-->(user mode prompt)

-router>enable

Password

Router#-->(privileged mode prompt)

Router#?

Configuring the router

-Terminal (entering the commands directly)

-router# Configure terminal

-router(Config)#

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Deleting the configuration in router

Router#erase startup-config

OR

Router#write erase

Router#reload

Router will start up again, but in setup mode, Since startup-config

file does not exists.

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Routing

Routing is exchange of routes between different networks.

There are 3 types of networks.

1. Default routing

2. Static routing

3. Dynamic routing

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Dynamic routing

A routing protocol is the communication B/w

different routers.

Examples of dynamic routing protocols

RIP

EIGRP

OSPF

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Questions ???

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