After the adjacency as been formed between two routers, a master-slave-relationship between two routers is formed too, where the master begins to send Database Description (DBDs).
My question is: What do Database Descriptions contain? the whole LSDB?
I also read this:
The router recognizes that the DBD contains more current link-state-entries due to the squence-number, right? If it contains more current link-state-entries, the router transitionsto the Loading State, in which the router asks with LSR (Link State Requests) for more information. But why does the router need to send LSRs? What Information would he want to have? Isn't everything in the DBD which got send to him?