BGPrunsoverareliabletransport().Thiseliminatestheneedtoimplementexplicitupdatefragmentation,retransmission,acknowledgement,and().AnyauthenticationschemeusedbythetransportprotocolmaybeusedinadditiontoBGP'sown()mechanisms.TheerrornotificationmechanismusedinBGP()thatthetransportprotocolsupportsa“graceful”close,i.e.,thatalloutstandingdatawillbedelivered(请作答此空)theconnectionisclosed.
A.after B.before C.earlier D.concurrently正确答案B
