At the beginning of this chapter, we learned that BGP uses the path attributes to ensure protocol reliability and routing information accuracy. In addition to being used to select the best path to a destination prefix, path attributes are also used to prevent BGP loops and ensure that the next hop IP address for a specified BGP prefix is reachable before BGP uses the next hop address to forward packets to that destination prefix.
Later in this chapter, we also learned that each BGP UPDATE message contains a single set of attributes and all of the routes using those attributes . . .
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