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Scalable DNS for Mobile Computing

This paper explores the integration of DNS as a location service in mobile computing, highlighting the challenges of scalability and caching. Key findings reveal that dynamic updates, defined in existing RFCs, significantly improve performance. With 80% of workload absorbed at the client cache and considerations for server replication, the proposed caching scheme optimizes DNS for mobile environments. The team, led by Dong-Young Lee and Bong-Soo Sohn, emphasizes the necessity of smart caching strategies to maintain efficient service amid dynamic updates and user mobility.

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Scalable DNS for Mobile Computing

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  1. Scalable DNS for Mobile Computing • Motivation • Using DNS as location service infrastructure for mobile computing • Dynamic updates are already defined in RFCs • No caching? • Scalability? • DNS Workload Analysis • 4.5% in number, 0.8% in bandwidth • 80% absorbed at client cache • 70% absorbed at name servers • 94% absorbed by cache • Problem if no cache • Key Design/Approach • Results/Lesson Learned • Importance of smart caching scheme • Scalability of DNS can be achieved from server replication. • Update individual hosts instead of zones Project team: Dong-Young Lee , Bong-Soo Sohn URL: http://www.cs.utexas.edu/users/bongbong/mobile

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