Router

 

WHAT IS ROUTER

1. A ROUTER IS A NETWORKING DEVICE THAT FORWARDS DATA PACKETS BETWEEN COMPUTER NETWORKS. 

2. ROUTERS PERFORM THE TRAFFIC DIRECTING FUNCTIONS BETWEEN NETWORKS AND ON THE GLOBAL INTERNET.

3. DATA SENT THROUGH A NETWORK, SUCH AS A WEB PAGE OR EMAIL, IS IN THE FORM OF DATA PACKETS.

1: NON MODULAR ROUTER

A SERIES FIXED ROUTER IS CALLED NON MODULAR ROUTER . SERIES. 2500………2599

2: MODULAR ROUTER

 A SERIES CHANGABL ROUTER IA CALLED MODULAR ROUTER . SERIES. 2600,2800,3400,6500,720

ADDVANTAGES OF ROUTER

1. IT PROVIDES CONNECTION BETWEEN RWO DIS-SIMILAR TYPES OF  NETWORK.

2. TRANSMISSION IS VERY HIGH.

3.  IT INTERNALLY USE SOME ALGORITHM TO FINDOUT CONGETSION FREE PATH.

4. IT PROVIDE BOTH WIRELESS AND WIRED FACILITY.

DISSADDVANTAGES OF ROUTER

1. ROUTER IS MORE EXPENSIVE COMPARE TO OTHER NETWORK DIVCES.

2. ROUTER ARE COMPLEX TO MAINTAIN.

3. SECURITY ISSUE.

ROUTER DIAGRAM

 CISCO ROUTER CLI INTERFACE HIS 3 MODE

1.USER MODE

                            Router>

2. ENABLE MODE

                                    Router#

3. CONFIGURATION TERMINAL MODE

                                                                           Router(config)#

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WHEN FIRST TIME ROUTER HIS OPEN THE FIST MODE HIS APPEARS

   Router>   AND WHEN TO ENABLE MODE TO ENTER    Router> enable

SEE  TO ENABLE MODE    Router#

AND WHEN TO CONFIGURATION MODE TO ENTER  router# config t

AND SEE THE CONFIGURATION MDE  router(config)#

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THE PURPOSE OF ENABLE MODE IS ALL THE CONFIGURATION YOU PERFORMS A ROUTER TO SEE IT AND ANY IP PING IN ENABLE MODE

AND CHECK COMMUNICATION.

THE PURPOSE OF CONFIGURATION TERMINAL MODE ALL THE PROTOCOLS AND CONFIGURATION POERFORMED HIS MODE.

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TYPES OF ROUTER

1. WIRED ROUTER

2. WIRELESS ROUTER

3. EDGE ROUTER

4. VPN ROUTER