TheBorderGatewayProtocol(BGP)isaninterautonomoussystem(71)protocol.TheprimaryfunctionofaBGPspeakingsystemistoexchangenetwork(72)informationwithotherBGPsystem.ThisnetworkreachabilityinformationincludesinformationonthelistofAutonomousSystem(ASs)thatreachabilityinformationtraverses.BGP-4providesanewsetofmechanismsforsupporting(73)interdomainrouting.ThesemechanismsincludesupportforadvertisinganIP(74)andeliminatetheconceptofnetworkclasswithinBGP.BGP-4alsointroducesmechanismsthatallowaggregationofroutes,including(在此空作答)ofASpaths.Thesechangesprovidesupportfortheproposedsupernettingscheme.
A.reservation B.relation C.aggregation D.connection正确答案C
