Path Selection Order

  • OSPF 会优先判断 type of route,然后才看 metric/cost
  • type of route Cisco 根据最新RFC3101 的优先级,也是官方教材给出的
    1. Intra-area (O)
    2. Interarea (O IA)
    3. NSSA Type 1 (N1)
    4. External Type 1 (E1)
    5. NSSA Type 2 (N2)
    6. External Type 2 (E2)
  • 实际优先级,结合实验得出