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When you are studying for the BSCI test on the solution to gaining your CCNP accreditation, youve got to learn the usage of BGP attributes. These features enable you to change the path or paths that BGP uses to achieve a given destination when multiple paths to that destination exist. In this free BGP training, we are going to take a peek at the NEXT_HOP characteristic. You may be thinking "hey, how difficult could this attribute be?" Its not to complex at all, but this being Cisco, theres got to be at least one unusual aspect about it, right? The NEXT_HOP attribute is simple enough - this attribute indicates the next-hop IP that needs to be taken to reach a destination. Within the following illustration, R1 is a heart switch and R3 and R2 are spokes. All three routers come in BGP AS 100, with R1 having a relationship with both R2 and R3. Get supplementary information on the affiliated article by clicking linklicious.me review. There is no BGP peering between R3 and R2. R3 is advertising the network 33.3.0.0 /24 via BGP, and the value of the characteristic on R1 is the IP on R3 thats utilized in the peer relationship, 172.12.123.3. The problem with the next-hop feature is available in when the route is advertised to BGP peers. If R3 were in a different AS from R1 and R2, R1 could then advertise the course to R2 using the attribute set to 172.12.123.3. To research more, consider checking out linklicious.me vs lindexed. If you think you know anything at all, you will probably wish to research about linklicious pro account. The value is retained, when a BGP speaker advertises an approach to iBGP colleagues that was originally learned from an eBGP fellow. Here, all three routers come in AS 100. What will the next-hop credit be set to when R1 advertises the path to its iBGP neighbor R2? R2#show ip bgp no output There will be no next-hop attribute for the route on R2, since the route wont appear on R2. By default, a BGP speaker will not advertise a to iBGP neighbors if the route was first learned from another iBGP neighbor. Luckily for us, there are many ways around this rule. To get further information, please view at Ethical Search engine marketing · Storify. The most typical is the utilization of route reflectors, and well look at RRs in another free BGP guide..