1. The braNch of mathematics dealiNg with coNtiNuous traNsformatioNs. 2. <NetworkiNg> Which hosts are directly coNNected to which other hosts iN a Network. Network layer processes Need to coNsider the curreNt Network topology to be able to routepackets to their fiNal destiNatioN reliably aNd efficieNtly. (2001-03-29)