Thepreviousbookinthisseries,ThePacketGuidetoCoreNetworkProtocols,coveredtheIPv4protocols,masking,anddevicesthatarepartofeverynetwork.Nowit’stimetotakeontheroutingandswitchingforthenetwork.Thereareanastonishingnumberoftable-baseddecisionsthathavetobemadeinordertogetasinglepack