300-320 · Question #78
Which option maximizes EIGRP scalability?
The correct answer is D. route summarization. Route summarization (D) is the primary technique for maximizing EIGRP scalability. EIGRP's SIA (Stuck-In-Active) problem - where a query for a lost route propagates throughout the entire domain - is directly bounded by summarization. Summarization limits the scope of EIGRP…
Question
Which option maximizes EIGRP scalability?
Options
- Aroute redistribution
- Broute redundancy
- Croute filtering
- Droute summarization
How the community answered
(63 responses)- A3% (2)
- B2% (1)
- C2% (1)
- D94% (59)
Explanation
Route summarization (D) is the primary technique for maximizing EIGRP scalability. EIGRP's SIA (Stuck-In-Active) problem - where a query for a lost route propagates throughout the entire domain - is directly bounded by summarization. Summarization limits the scope of EIGRP queries to within a summarization boundary, prevents detailed prefix information from flooding the entire network, and reduces the size of routing and topology tables. Route redistribution (A) introduces complexity and potential loops, route redundancy (B) is a general concept, and route filtering (C) can help but does not address the core EIGRP query propagation scalability issue the way summarization does.
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