##Nettverkslaget og linklaget ##SDN ### Historie ### Hva er SDN ### Motivasjon ### Kontroller ### Openflow ##Ruting protokoller ###RIP ###OSPF ##BGP ###Path attributes

A routing table will only store one route per destination, while the RIB usually contains multiple routes. The RIB keeps track of routes that could possibly be used. If a route withdrawal is received and it only existed in the RIB, it is silently deleted from the RIB. No update is sent to peers. RIB entries never time out. They continue to exist until it is assumed that the route is no longer valid.