The rapid traffic growth fueled by mobile devices spread and high speed network access calls for substantial innovation at network layer. The content-centric nature of Internet usage highlights the limitations of the host-centric model in coping with dynamic content-to-location binding, mobility, multicast, multi-homing, etc. If transmission capacity speedups in the backhaul may hide inefficiencies in the short term, the hostcentric communication model needs to be revisited to sustain future mobile demand. In this paper, we first identify and quantify the opportunities for backhaul evolution by analyzing a large set of traffic measurements collected between mobile core and backhaul of Orange France. The analysis reveals that 50% of HTTP requests are cacheable and traffic can be reduced from 60% to 95% during the peak hour by using 350GBs to 1TB of memory overall. Motivated by such significant opportunities for latency reduction and network cost savings, we present a solution based on Information-Centric Networking (ICN). First results of a large scale experimentation with 100 Linux servers and customized software, in a realistic network setting, provide a glimpse into ICN gains even under naive caching: a factor three reduction in delivery time and almost 40% bandwidth savings, when compared to existing alternatives.
[1]
Diego Perino,et al.
A reality check for content centric networking
,
2011,
ICN '11.
[2]
Massimo Gallo,et al.
Optimal multipath congestion control and request forwarding in Information-Centric Networks
,
2013,
2013 21st IEEE International Conference on Network Protocols (ICNP).
[3]
Dario Rossi,et al.
Analyzing cacheable traffic in isp access networks for micro cdn applications via content-centric networking
,
2014,
ICN '14.
[4]
Eunyoung Jeong,et al.
Comparison of caching strategies in modern cellular backhaul networks
,
2013,
MobiSys '13.
[5]
Patrick Crowley,et al.
Named data networking
,
2014,
CCRV.
[6]
Bruce M. Maggs,et al.
Less pain, most of the gain: incrementally deployable ICN
,
2013,
SIGCOMM.
[7]
Mark Haner,et al.
Cacheability analysis of HTTP traffic in an operational LTE network
,
2013,
2013 Wireless Telecommunications Symposium (WTS).
[8]
Van Jacobson,et al.
Networking named content
,
2009,
CoNEXT '09.