![]() ![]() When addressing information is assigned to the interfaces in a point-to-point link, it is modeled as if it were a stub network attached to the router. This is due to the way that point-to-point links are described in OSPFv2. The output shows a total number of 5 links in R1 instead of 3. The final OSPF graph is used by the routers to calculate the shortest path using the Shortest Path First (SPF) algorithm (Dijkstra algorithm). The Link State ID is the key used to search in the LSDB in order to link the different LSAs together. In a Type-1 LSA, the Link State ID value is the Router ID (RID) of the advertising router. The Link State ID identifies a node in the OSPF graph. From the previous output, I want to highlight the following information: The previous command shows the detailed information about the Router LSA (Type-1 LSA) originated from R1. ![]()
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