Such applications could lead to congestion collapse being more common
Reduce their sending rate in face of congestion and effectively get Resources they want from responsive flows, the responsive flows Unresponsive to congestion to take whatever share of bottleneck In this situation it is possible for applications that are Is conducted by the collaboration of the majority of end-systems. The vast majority of end-systems running TCP and reacting to detectedĬongestion by reducing their sending rates. Re-ECN is proposed as a means of allowing accurate monitoring ofĬongestion throughout the Internet. This introduction starts with a run through of these 4 points. O To show how a number of hard problems become much easier to solve O The framework within which the protocol sits O Provide a very brief description of the protocol O Describe the motivation for wanting to introduce re-ECN Priority for the authors is to delay any move of the ECN nonce to Reaching change to the Internet architecture, the most immediate Expires SeptemĪuthors' Statement: Status (to be removed by the RFC Editor)Īlthough the re-ECN protocol is intended to make a simple but far. Inflation Factor for Persistently Negative Flows. Bulk Downstream Congestion Metering Algorithm. Downstream Congestion Metering Algorithms. Identifying Upstream and Downstream Congestion. Internet-Draft Re-ECN: Framework March 2014 5.1. The Trust Legal Provisions and are provided without warranty asġ.
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Code Components extracted from this document must Please review these documentsĬarefully, as they describe your rights and restrictions with respect This document is subject to BCP 78 and the IETF Trust's Legal This Internet-Draft will expire on September 12, 2014.Ĭopyright (c) 2014 IETF Trust and the persons identified as the Material or to cite them other than as "work in progress." It is inappropriate to use Internet-Drafts as reference Internet-Drafts are draft documents valid for a maximum of six monthsĪnd may be updated, replaced, or obsoleted by other documents at any Internet-Draft Re-ECN: Framework March 2014 Note that other groups may also distribute Internet-Drafts are working documents of the Internet Engineering
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This Internet-Draft is submitted in full conformance with the Pursue other compromises in order to fit a similar capability into Still too few ECN receivers enabled, therefore it was decided to Re-ECN was a precursor to chartering of the IETF's CongestionĮxposure (ConEx) working group, but during chartering there were Receiver to be ECN-enabled otherwise the sender could not use re-ECN. Space in the IP header, so re-ECN had to compromise by requiring the Note concerning Intended Status: If this draft were ever published asĪn RFC it would probably have historic status. Points will be to use the protocol honestly. And it describes example mechanisms thatĮnsure the dominant selfish strategy of both network domains and end. Mechanisms that can use the protocol to ensure data sources respondĬorrectly to congestion.
The motivation for re-ECN this document also gives examples of
So, networks can introduce straightforward accountabilityįor congestion and policing mechanisms for incoming traffic from end-Ĭustomers or from neighbouring network domains. Held responsible for the congestion they cause, or allow to beĬaused. The upstream party at any trust boundary in the internetwork to be Re-ECN allowsĪccurate congestion monitoring throughout the network thus enabling Re-ECN (re-inserted explicit congestion notification), which can beĭeployed incrementally around unmodified routers. This document describes a framework for using a new protocol called Re-ECN: A Framework for adding Congestion Accountability to TCP/IP draft-briscoe-conex-re-ecn-motiv-03
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