RIP – “sh ip rip database”
OSPF – OLD > “sh ip ospf database”
NEW > “sh ip ospf rib detail”
EIGRP – “sh ip eigrp topology all-links”
* You can see routes that failed the feasibility check.
BGP – “sh ip bgp”
* You can see the RIB failures and the reason using this command: “show ip bgp rib-failure”
IS-IS – “sh isis database”