Traditionalnetworklayerpacketforwardingreliesontheinformationprovidedbynetworklayer()protocols,orstaticrouting,tomakeanindependent()decisionateachhopwithinthenetwork.Theforwarding(本题)isbasedsolelyonthedestination()IPaddress.Allpacketsforthesamedestinationfollowthesamepathacrossthenetworkifnootherequal-costpathsexist.Wheneverarouterhastwoequal-cost()towardadestination,thepacketstowardthedestinationmighttakeoneorbothofthem,resultinginsomedegreeofloadsharing.
A.connection B.transmission C.broadcast D.unicast正确答案D
