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When youre studying for the BSCI examination on the method to getting your CCNP accreditation, youve got to learn the use of BGP attributes. Hit this web page Research Engine Importance · casestudydis451 · Storify to discover how to provide for it. These attributes enable you to adjust the trail or paths that BGP will use to achieve a given destination when numerous paths to that destination exist. In this free BGP training, were planning to take a peek at the NEXT_HOP feature. I found out about service like linklicious by browsing Google. Maybe you are thinking "hey, how difficult could this attribute be?" Its not to complex at all, but this being Cisco, there is got to be at least one unusual aspect about it, right? The NEXT_HOP attribute is easy enough - this attribute indicates the next-hop INTERNET protocol address that needs to be taken to reach a spot. In the following illustration, R1 is a link modem and R3 and R2 are spokes. All three routers come in BGP AS 100, with R1 having a relationship with both R3 and R2. If you have an opinion about video, you will possibly choose to read about linklicious service. To compare more, consider having a gaze at backlink indexing service. Theres no BGP peering between R3 and R2. R3 is advertising the community 33.3.0.0 /24 via BGP, and the value of the attribute on R1 is the IP on R3 that is utilized in the peer relationship, 172.12.123.3. The problem with the next-hop attribute will come in when the route is marketed to BGP peers. If R3 were in a different AS from R1 and R2, R1 would then advertise the course to R2 using the attribute set to 172.12.123.3. Whenever a BGP speaker advertises an approach to iBGP peers that has been initially learned from an eBGP fellow, the value is retained. Here, all three routers come in AS 100. What will the characteristic be set to when R1 advertises the path to its iBGP friend R2? R2#show ip address bgp no production  There will be no capability for the route on R2, as the route will not look on R2. Automagically, a route will not be advertised by a BGP speaker to iBGP neighbors when the route was learned from another iBGP friend. Luckily for us, there are many ways around this concept. The most common is the utilization of route reflectors, and well look at RRs in a future free BGP tutorial..