Towards a low latency network-slice resistant to unresponsive traffic

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


This paper studies what mechanisms a network must have to offer a very low-latency service to applications (featuring a maximum end-to-end packet delay). We assume very concrete requirements, not seen in the literature, that raise the challenge level: i) applications might be unresponsive to traffic warnings from the network; and ii) applications do not inform or require any network resources, exactly as the Internet works today (i.e., there is no admission control procedures). We present an architecture/algorithm with a minimum of state information and good scalability properties. Obviously, it is not applicable to the wide Internet. Even more, the architecture is not TCP-friendly (because control loops must be shorter than the Round Trip Time (RTT) magnitudes and oscillations, and packet losses are higher). Instead, it is appropriate to an end-to-end slice network based on a virtualization of the physical network with independent queues and line bandwidths. It is designed for interactive applications and for certain real-time ones. We use plain backpressure control supported by cooperation amongst the routers to isolate offending traffic. We are particularly concerned in situations of very high load, as they will be very common in the future. One objective is to reach a predictable network behaviour that in the limit (heavy network overload) is maintained, contrary to the current Internet. In the future, new pace-based congestion control algorithms for applications can be designed to take the most out of this type of network.

Original languageEnglish
Title of host publicationNCA 2018 - 2018 IEEE 17th International Symposium on Network Computing and Applications
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538676592
Publication statusPublished - 26 Nov 2018
Event17th IEEE International Symposium on Network Computing and Applications, NCA 2018 - Cambridge, United States
Duration: 1 Nov 20183 Nov 2018


Conference17th IEEE International Symposium on Network Computing and Applications, NCA 2018
Country/TerritoryUnited States


  • Congestion Control
  • Network Slice
  • Scalability
  • Software Defined Networks
  • Traffic Engineering
  • Unresponsive Traffic


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