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When you are studying for the BSCI exam on the solution to earning your CCNP certification, you have surely got to learn the usage of BGP attributes. These features enable you to adjust the path or paths that BGP uses to achieve a given destination when multiple paths to that destination occur. Within this free BGP tutorial, were likely to take a look at the NEXT_HOP feature. You may be considering "hey, how difficult can this credit be?" Its not so difficult at all, but this being Cisco, there is got to be at least one unusual detail about it, right? The NEXT_HOP attribute is simple enough - this attribute indicates the next-hop IP address that should be taken to achieve a spot. In the following illustration, R1 is a centre router and R3 and R2 are spokes. All three routers come in BGP AS 100, with R1 having a connection with both R3 and R2. 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 that is used in the peer relationship, 172.12.123.3. The matter using the next-hop credit will come in if the route is advertised to BGP peers. Learn further on an affiliated article by going to find out more. Learn further on an affiliated essay - Hit this web page PureVolume™ Were Listening To You. 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. Should you hate to learn further about linkliciousproscenes Profile - Gap Year, we know of heaps of libraries you should think about pursuing. The value is kept, whenever a BGP speaker advertises a path to iBGP friends which was actually learned from an eBGP peer. Here, all three routers come in AS 100. Whatll the next-hop attribute be set to when R1 advertises the path to its iBGP neighbor R2? R2#show internet protocol address bgp no productivity There will be no attribute for the route on R2, since the route wont look on R2. By default, a route wont be advertised by a BGP speaker to iBGP neighbors if the route was learned from another iBGP neighbor. Fortunately for us, there are several ways around this rule. The most common is the usage of route reflectors, and well look at RRs in a future free BGP article.. To read additional information, please glance at partner sites.