Friday, June 6, 2008
How to configure BGP with weight attribute?
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BGP stands for Border Gateway Protocol is true built-in policy based routing protocols. BGP uses different attribute to implement these polices in route selection process between different autonomous systems. There are some main attributes that BGP uses in route selection process. Weight Local preference Multi-exit Discriminator or MED Origin AS_Path Next Hop Community We will configure here only weight attribute in detail and the remaining attributes will be discussed in the next tips. The weight attribute basically a Cisco proprietary technology and considered as first attribute in BGP. The default value of weight is 0 and the range is from 0 to 65535. If we change the weight value of one router that change will not propagate to other router and the route with maximum weight value will be considered as the best route. Today tip will help you configure BGP between two different autonomous systems. In this case, we will try to configure four different routers with routing protocols RIP and then complete the all routing tables using BGP. At the end, we will change the weight of one route in order to give it preference over a lower one
This post was written by: Joshua Daniel
Joshua Daniel is a Management Professional,professional blogger, web designer and front end web developer. Follow him on Twitter
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