Exam 400-007 topic 1 question 37 discussion

When there are multiple ABRs between the backbone area (Area 0) and area 1, each ABR will receive LSAs (Link State Advertisements) from area 1 and replicate them to the backbone area. This replication process can result in increased LSAs flooding and processing in the backbone area, leading to scalability issues. As the network scales and more ABRs are added, the number of LSAs being replicated and flooded throughout the backbone area increases, potentially overwhelming the routers and causing performance degradation. It is important to carefully consider the number of ABRs and the resulting LSA replication to ensure efficient and scalable operation of the OSPF (Open Shortest Path First) network.