OSPFisalink-stateroutingprotocol。Itisdesignedtoberuninternaltoasingle()system。EachOSPFroutermaintainsanidentical(72)describingtheautonomoussystem’stopology。Fromthisdatabase，aroutingtableiscalculatedbyconstructingashortest-path()。OSPFrecalculatesroutesquicklyinthefaceoftopologicalchanges，utilizingaminimumofrouting()traffic。OSPFprovidessupportforequal-costmultipath。Anarearoutingcapabilityisprovided，enablinganadditionallevelofroutingprotectionandareductioninroutingprotocol()。 A.tree
A.table B.database C.recor正确答案C
