Traditionalnetworklayerpacketforwardingreliesontheinformationprovidedbynetworklayer()protocols,orstaticrouting,tomakeanindependentforwardingdecisionateach(本题)withinthenetwork．Theforwardingdecisionisbasedsolelyonthedestination()IPaddress．Allpacketsforthesamedestinationfollowthesamepathacrossthenetworkifnootherequal-cost()exist．Wheneverarouterhastwoequal-costpathstowardadestination,thepacketstowardthedestinationmighttakeoneorbothofthem,resultinginsomedegreeofloadsharing．EnhancedInteriorGatewayRoutingProtocol(EIGRP)alsosupportsnon-equal-cost()sharingalthoughthedefaultbehaviorofthisprotocolisequal-cost．YoumustconfigureEIGRPvariancefornon-equal-costloadbalancing．
A.switch B.hop C.host D.customer正确答案B
