Application Of Policy Based Indexes And Unified Caching For Content Delivery (2014)
By Andrey Kisel, Alcatel-Lucent
Caching technologies are used to improve quality of experience while controlling transit and transport costs. Two common caching technologies are considered transparent caching (TC) and on-net content delivery network (CDN). We illustrate cache avoidance, analyze and model two common approaches - content hash indexes and policy based indexes - to minimize the impact. We show how the use of policy based indexes and applying advanced features of IP routing can be used to merge on-net CDNs and TC together into a single unified caching system with superior and quantifiable improvement in cache efficiency, while providing resilience and simplifying operations.
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