ocr: Adjacency is formed between routers R1 and R2. R1 - - - - - - S5 K - - R2 R4 Router R2 A - - I - propagates R6 / - - - new LSA to router A R3 and R4. R3 Router R3 propagates new LSA to router R5. - - Router R4 propagates new LSA to router R6. R5