D-Link DGS-6600-48TS Configuration Guide - Page 278

Volume 4-Layer 3 Configurations / Chapter 28-Open Shortest Path First Version 3 (OSPFv3) OSPF AS Chapter Overview Dijkstra's algorithm OSPF routing table Link State Database LSDB LSA LSA LSA SPF tree Generate OSPF routes Routing process IP routing table Figure 28-5 The diagram above shows how the routing decisions are including the following concerns: • stores LS database • calculates SPF tree • informs parent process about routing table changes • redistribution of networks (ASBR) • summary LSA generation if ABR Any change in the network causes certain link state information to change. Examples of such changes include the following: • The state of a router's OSPF interfaces changes. • A neighbor transitions to full state. • A neighbor loses full adjacency. • The DR on a transit link changes. • A new IPv6 prefix is added or deleted on any given interface configured for OSPF. • An interface configured for OSPF is added or deleted on a router. • An area's summary information changes. • An external route is added or withdrawn at the ASBR. • The renewal timer (MaxAge/2) of an LSA requires an updated LSA. DGS-6600 Configuration Guide 278