RIB stands for routing information base ==>Routing table. RIB-Failure means that the router which is originating the BGP route, like a network statement under BGP is not the same router which originates the route in IGP, like ospf, eigrp, rip, isis. BGP is not going to advertise that particular network if it has a 'r' flag set ...which implies a RIB failure. Also look at the following bug
I have cheched thouse bug but i´m not sure to understand the meaning of the RIB-failure status.
If a BGP prefix (show ip bgp) is not added to the routing table then is it marked like RIB-failure? For example, because we have the same prefix with a better metric or because it is not synchronized or we can´t get the next hop.
We have static routes to 184.108.40.206/19, 220.127.116.11/18 and 18.104.22.168/15 through a p-to-p link and we are getting thouse prefix through our Internet connection. Because the next hop is different thouse prefix must not be added to the routing table or send to our BGP neighbors. And then they are marked like RIB-failure in the BGP table. I suppose, with this configuration, it is the expected behaviour and the RB-failure status is only the reason thouse are not valid prefix.
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