The Internet at the Speed of Light

Singla, Ankit; Chandrasekaran, B.; Godfrey, P. Brighten; Maggs, Bruce M.

doi:10.1145/2670518.2673876

Cited by 114 publications

(60 citation statements)

References 17 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Interactive applications, from gaming to voice and videoconferencing, offer the best quality of experience when latency is low. Providers need means to deliver not only capacity to end users, but also low latency [6,28], and have an economic incentive to do so [23]. One seemingly promising strategy for cutting latency is to build more mesh-like backbones: to introduce links that carry demand along a more direct geographic path, shortcutting a more circuitous one.…”

Section: Introductionmentioning

confidence: 99%

Low-Latency Routing on Mesh-Like Backbones

Gvozdiev

Vissicchio

Karp

et al. 2017

Proceedings of the 16th ACM Workshop on Hot Topics in Networks

View full text Add to dashboard Cite

Early in in the Internet's history, routing within a single provider's WAN centered on placing traffic on the shortest path. More recent traffic engineering efforts aim to reduce congestion and/or increase utilization within the status quo of greedy, shortest-path first routing on a sparse topology. In this paper, we argue that this status quo of routing and topology is fundamentally at odds with placing traffic so as to minimize latency for users while avoiding congestion. We advocate instead provider backbone topologies that are more mesh-like, and hence better at providing multiple low-latency paths, and a routing system that directly considers latency minimization and congestion avoidance while dynamically placing traffic on multiple unequal-cost paths. We offer a research agenda for achieving this new low-latency approach to WAN topology design and routing.

show abstract

Section: Introductionmentioning

confidence: 99%

Low-Latency Routing on Mesh-Like Backbones

Gvozdiev

Vissicchio

Karp

et al. 2017

Proceedings of the 16th ACM Workshop on Hot Topics in Networks

View full text Add to dashboard Cite

show abstract

“…The end-goal is to get as close as possible to the physical limitations of the speed of light [25]. However, today the latency of internet connections is often larger than it needs to be.…”

Section: Introductionmentioning

confidence: 99%

Measuring Latency Variation in the Internet

Høiland-Jørgensen

Ahlgren

Hurtig

et al. 2016

Proceedings of the 12th International on Conference on Emerging Networking EXperiments and Technologies

View full text Add to dashboard Cite

We analyse two complementary datasets to quantify the latency variation experienced by internet end-users: (i) a largescale active measurement dataset (from the Measurement Lab Network Diagnostic Tool) which shed light on longterm trends and regional differences; and (ii) passive measurement data from an access aggregation link which is used to analyse the edge links closest to the user.The analysis shows that variation in latency is both common and of significant magnitude, with two thirds of samples exceeding 100 ms of variation. The variation is seen within single connections as well as between connections to the same client. The distribution of experienced latency variation is heavy-tailed, with the most affected clients seeing an order of magnitude larger variation than the least affected. In addition, there are large differences between regions, both within and between continents. Despite consistent improvements in throughput, most regions show no reduction in latency variation over time, and in one region it even increases.We examine load-induced queueing latency as a possible cause for the variation in latency and find that both datasets readily exhibit symptoms of queueing latency correlated with network load. Additionally, when this queueing latency does occur, it is of significant magnitude, more than 200 ms in the median. This indicates that load-induced queueing contributes significantly to the overall latency variation.

show abstract

“…The results show that the mean response time is about 70 ms and the minimum response time is only 0.008 ms. The authors of [3] study the impact of infrastructural bottlenecks and network protocols on latency and conclude that to achieve 30 ms response time for fetching HTML pages of popular websites around 2000 CDN locations are needed. In general, the results in the literature show that, in small-scale studies, users could access services at a latency of less than 100 ms.…”

Section: Background and Related Workmentioning

confidence: 99%

On the Feasibility of Using Current Data Centre Infrastructure for Latency-sensitive Applications

Griffin

Phan

Maini

et al. 2018

IEEE Trans. Cloud Comput.

View full text Add to dashboard Cite

Abstract-It has been claimed that the deployment of fog and edge computing infrastructure is a necessity to make highperformance cloud-based applications a possibility. However, there are a large number of middle-ground latency-sensitive applications such as online gaming, interactive photo editing and multimedia conferencing that require servers deployed closer to users than in globally centralised clouds but do not necessarily need the extreme low-latency provided by a new infrastructure of micro data centres located at the network edge, e.g. in base stations and ISP Points of Presence. In this paper we analyse a snapshot of today's data centres and the distribution of users around the globe and conclude that existing infrastructure provides a sufficiently distributed platform for middle-ground applications requiring a response time of 20 − 200 ms. However, while placement and selection of edge servers for extreme lowlatency applications is a relatively straightforward matter of choosing the closest, providing a high quality of experience for middle-ground latency applications that use the more widespread distribution of today's data centres, as we advocate in this paper, raises new management challenges to develop algorithms for optimising the placement of and the per-request selection between replicated service instances.

show abstract

The Internet at the Speed of Light

Cited by 114 publications

References 17 publications

Low-Latency Routing on Mesh-Like Backbones

Low-Latency Routing on Mesh-Like Backbones

Measuring Latency Variation in the Internet

On the Feasibility of Using Current Data Centre Infrastructure for Latency-sensitive Applications

Contact Info

Product

Resources

About