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Obviously the same destination means longest match can not be used. Also note the use of "if" in his sentence, which indicates a caveat/condition is coming next.
"Administrative distance is the first criterion that a router uses to determine which ro...
'show ip ospf rib' will give you the information you want. Note that '>" indicates whether this route will be installed in the routing table. Not having '>' may be an indication the router has a path to the prefix via another routing protocol with a...
Your best in this case is to remove the nail down route via null 0, the reason is that with the null 0 approach you may end up null routing traffic if your R1-R2 link fails AND your fa2/0 is also down while your BGP upstream link is active.In my opi...