Answer
IPVS performs constant-time routing; iptables rule chains grow linearly.
Quick Answer
iptables stores rules in kernel memory as linked lists — lookup is O(n) where n is the number of rules. With 10,000 Services, each packet traverses thousands of rules. IPVS uses kernel hash tables — lookup is O(1) regardless of Service count. IPVS also supports more load balancing algorithms (round-robin, least-connection, shortest-expected-delay) natively.
S
SugharaIQ Editorial Team
Verified Answer
This answer has been peer-reviewed by industry experts holding senior engineering roles to ensure technical accuracy and relevance for modern interview standards.
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Source: SugharaIQ