Whenever you’re learning for the CCNP certification, Specially the BSCI Examination, you have to get a reliable comprehension of BGP. BGP isn’t just one of the biggest topics on the BSCI Examination, it’s considered 토토 one of the largest. BGP has a great several particulars that has to be mastered for BSCI achievement, and those of you with 1 eye about the CCIE must find out the basics of BGP now so that you can Construct on All those fundamentals at a afterwards time.
Path characteristics are a singular attribute of BGP. With interior gateway protocols which include OSPF and EIGRP, administrative distance is used being a tiebreaker when two routes to the same spot had unique upcoming-hop IP addresses but the identical prefix duration. BGP makes use of route attributes for making this selection.
The main attribute regarded as by BGP is body weight. Weight can be a Cisco-proprietary BGP attribute, so in case you’re Operating inside a multivendor natural environment you should do the job with another attribute to influence path selection.
The weight attribute is significant only to your router on which it's modified. If you established a higher body weight for a selected route so as to give it choice (the next pounds is desired above a reduced a single), that bodyweight isn't marketed to other routers.
BGP employs groups for instance “transitive”, “non-transitive”, “necessary”, and “optional” to classify characteristics. Considering the fact that body weight is a domestically considerable Cisco-proprietary attribute, it doesn't all into any of those classes.
The burden could be altered on just one route by way of a route-map, or it may be set for a different pounds for all routes obtained from the offered neighbor. To change the excess weight for all incoming routes, make use of the “fat” selection Along with the neighbor command immediately after forming the BGP peer interactions.
R2(config)#router bgp one hundred
R2(config-router)#neighbor one hundred.1.one.one distant-as 10
R2(config-router)#neighbor 100.1.1.1 excess weight two hundred
Finding out all of the BGP attributes, in addition to when to use them, can seem an overwhelming task if you 1st commence researching for the BSCI and CCNP examinations. Split this activity down into tiny components, study just one attribute at any given time, and shortly you’ll possess the BGP characteristics mastered.