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VRRP

 

VRRP IS A PROTOCOL THAT CREATES A VIRTUAL ROUTER OUT OF A GROUP OF ROUTERS. THIS VIRTUAL ROUTER HAS A SINGLE IP ADDRESS AND MAC ADDRESS, AND ALL OF THE ROUTERS IN THE GROUP SHARE THIS INFORMATION. WHEN A ROUTER IN THE VRRP GROUP FAILS, THE OTHER ROUTERS IN THE GROUP ELECT A NEW MASTER ROUTER. THE MASTER ROUTER IS RESPONSIBLE FOR FORWARDING TRAFFIC FOR THE VIRTUAL ROUTER.

VRRP ENSURES THAT THERE IS ALWAYS A ROUTER AVAILABLE TO FORWARD TRAFFIC, EVEN IF ONE OF THE ROUTERS IN THE GROUP FAILS.

 ANOTHER DEFINATION OF VRRP

Vrrp Is A Protocol That Provides Redundancy For Ip Routers.

Vrrp Works By Electing A Master Router For Each Virtual Router.

The Master Router Is Responsible For Forwarding All Traffic For That Virtual Router.

If The Master Router Fails, One Of The Backup Routers Will Become The New Master Router.

Here Are Some Of The Key Benefits Of Using Vrrp:

Simple To Configure And Manage.

Can Be Easily Scaled To Support A Large Number Of Routers.

Provides Fault Tolerance By Electing A Backup Router For Each Virtual Router.


CONFIGURATION




ASSIGN IP ADDRESS IN ALL INTERFACES ON HIS TOPOLOGY DEVICES.

CONFIGURE ROUTER RIP.

GO TO R1 CONFIGURATION MODE.

Config# inter f0/1

Config# vrrp 1 ip 192.168.10.150

GO TO R2 CONFIGURATION MODE

Config# inter f0/1

Config# vrrp 1 ip 192.168.10.150

GO TO R1 CONFIGURATION MODE.

INTER FA0/1

Config# vrrp 1 priority 120

Config# inter fa0/0

Config# shutdown

Config# track 1 interface fa0/0 line-protocol 

Config# exit

Config# inter fa0/1

Config# vrrp 1 track 1 decrement 40


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