If you’re finding out with the CCNP certification, Specifically the BSCI Test, you have to get a good knowledge of BGP. BGP isn’t just one of the biggest topics on the BSCI exam, it’s considered one of the largest. BGP has an excellent several particulars that must be mastered for BSCI accomplishment, and people of you with one eye over the CCIE must master the basics of BGP now so as to Construct on Those people fundamentals at a later on time.
Route attributes are a unique element of BGP. With interior gateway protocols including OSPF and EIGRP, administrative length is made use of to be a tiebreaker when two routes to the identical desired destination had various following-hop IP addresses but a similar prefix duration. BGP employs route characteristics to help make this preference.
The primary attribute thought of by BGP is fat. Fat is usually a Cisco-proprietary BGP attribute, so should you’re working within a multivendor environment you must operate with another attribute to affect path collection.
The weight attribute is critical only 토토 to the router on which it is actually modified. In the event you set a higher weight for a selected route in an effort to give it choice (a higher weight is favored above a reduce one), that body weight is not advertised to other routers.
BGP makes use of classes such as “transitive”, “non-transitive”, “mandatory”, and “optional” to classify characteristics. Given that pounds is usually a locally sizeable Cisco-proprietary attribute, it doesn't all into any of those categories.
The burden might be improved on only one route through a route-map, or it could be established for another fat for all routes gained from a specified neighbor. To alter the excess weight for all incoming routes, utilize the “weight” choice While using the neighbor command immediately after forming the BGP peer relationships.
R2(config)#router bgp one hundred
R2(config-router)#neighbor a hundred.one.one.one distant-as ten
R2(config-router)#neighbor 100.1.one.one body weight two hundred
Discovering each of the BGP characteristics, and also when to utilize them, can seem to be an overwhelming process if you initially start off researching for your BSCI and CCNP tests. Break this task down into compact pieces, learn one attribute at a time, and shortly you’ll have the BGP characteristics mastered.