What are two reasons why route summarization is important? (Choose two.)

Last Updated: Jun 29, 2026
IT Exam Items Repository › Category: CCNP ENARSI v9 › What are two reasons why route summarization is important? (Choose two.)

What are two reasons why route summarization is important? (Choose two.)

  • It reduces the size of the routing table.
  • It reduces the size of the neighbor table.
  • It reduces LSA type 3 flooding.
  • It reduces LSA type 1 flooding.
  • It reduces LSA type 2 flooding.

Explanation: Route summarization consolidation reduces the number of entries in the routing table and limits the number of Inter-Area Prefix (Type 3) LSAs flooded across area boundaries. By advertising one summary prefix instead of many specific ones, it also lowers CPU and memory utilization.

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