Name
Abstract | ||
|---|---|---|
Internet users consume increasing quantities of video content with higher Quality of Experience (QoE) expectations. Network scalability thus becomes a critical problem for video delivery as traditional Content Delivery Networks (CDN) struggle to cope with the demand. In particular, content-awareness has been touted as a tool for scaling CDNs through clever request and content placement. Building on that insight, we propose a network paradigm that provides application-awareness in the network layer, enabling the offload of CDN decisions to the data-plane. Namely, it uses chunk-level identifiers encoded into IPv6 addresses. These identifiers are used to perform network-layer cache admission by estimating the popularity of requests with a Least-Recently-Used (LRU) filter. Popular requests are then served from the edge cache, while unpopular requests are directly redirected to the origin server, circumventing the HTTP proxy. The parameters of the filter are optimized through analytical modeling and validated via both simulation and experimentation with a testbed featuring real cache servers. It yields improvements in QoE while decreasing the hardware requirements on the edge cache. Specifically, for a typical content distribution, our evaluation shows a 22% increase of the hit rate, a 36% decrease of the chunk download-time, and a 37% decrease of the cache server CPU load. |
Year | Venue | Keywords |
|---|---|---|
2019 | 2019 IFIP/IEEE Symposium on Integrated Network and Service Management (IM) | video content,network scalability,critical problem,content-awareness,clever request,content placement,network paradigm,application-awareness,network layer,CDN decisions,chunk-level identifiers,IPv6 addresses,network-layer cache admission,popular requests,edge cache,unpopular requests,cache servers,typical content distribution,cache server CPU load,Internet users,content delivery networks,scalable video delivery,content-aware data-plane,higher quality of experience expectations,QoE expectations,least-recently-used filter |
Field | DocType | ISSN |
Hit rate,Forwarding plane,Cache,Computer science,Server,Computer network,IPv6 address,Quality of experience,Scalability,Distributed computing,The Internet | Conference | 1573-0077 |
ISBN | Citations | PageRank |
978-1-7281-0618-2 | 0 | 0.34 |
References | Authors | |
0 | 6 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Yoann Desmouceaux | 1 | 10 | 1.97 |
| Marcel Enguehard | 2 | 0 | 0.34 |
| Victor Nguyen | 3 | 0 | 0.34 |
| Pierre Pfister | 4 | 9 | 1.63 |
| Wenqin Shao | 5 | 4 | 2.28 |
| e vyncke | 6 | 0 | 1.35 |