I have attached the scenario in which i am having problem with R3 & R4 BGP table in which 2 possible next-hops to reach 10.10.10.0/24 aren't being displayed instead only one is being displayed.... configuration has been attached with problematic output, please suggest any solution so that output mentioned in DESIRED OUTPUT FILE can be displayed.......
BGP always select one best path. It is only this one best path that is advertised to the BGP neighbors.
The same applies when a route rflector receives many paths from its clients (and non-clients). It selects one best path and advertised it to all neighbors (except for the one that advertised the path considered to be the best path).
There is actually a proposed draft that would allow more than one path to be advertised to a BGP neighbor. For more information, please refer to the following draft:
Hope this helps,