After you’re finding out for that CCNP certification, especially the BSCI exam, you should gain a reliable knowledge of BGP. BGP isn’t only one of the most significant subject areas within the BSCI exam, it’s considered one of the largest. BGP has a terrific several facts that needs to be mastered for BSCI accomplishment, and those of you with a single eye within the CCIE ought to master the basics of BGP now so that you can Create on People fundamentals in a afterwards time.
Path characteristics are a unique characteristic of BGP. With inside gateway protocols for example OSPF and EIGRP, administrative distance is utilized as a tiebreaker when two routes to exactly the same destination had diverse next-hop IP addresses but a similar prefix size. BGP works by using path attributes to make this choice.
The 1st attribute regarded by BGP is pounds. Weight is actually a Cisco-proprietary BGP attribute, so should you’re Functioning in a multivendor environment you'll want to get the job done with A different attribute to influence route collection.
The weight attribute is significant only on the router on which it is actually improved. Should you established a greater weight for a selected route so as to give it desire (the next pounds is preferred above a reduce a person), that body weight just isn't marketed to other routers.
BGP utilizes classes such as “transitive”, “non-transitive”, “necessary”, and “optional” to classify attributes. Because pounds is actually a locally major Cisco-proprietary attribute, it doesn't all into any of those categories.
The load might be transformed on just one route via a route-map, or it could be established for a special body weight for all routes received from the presented neighbor. To change the weight for all incoming routes, utilize the “fat” selection 토토 While using the neighbor command following forming the BGP peer relationships.
R2(config)#router bgp a hundred
R2(config-router)#neighbor a hundred.one.1.one distant-as 10
R2(config-router)#neighbor a hundred.one.one.1 weight 200
Discovering each of the BGP characteristics, together with when to rely on them, can appear to be an overwhelming process if you very first begin learning in your BSCI and CCNP tests. Break this endeavor down into smaller sections, master a single attribute at a time, and soon you’ll provide the BGP characteristics mastered.