Circuit Breaker Assisted Congestion Control
draft-ietf-mboned-cbacc-02

Document Type Active Internet-Draft (mboned WG)
Author Jake Holland 
Last updated 2021-02-01
Replaces draft-jholland-mboned-cbacc
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Mboned                                                        J. Holland
Internet-Draft                                 Akamai Technologies, Inc.
Intended status: Standards Track                       February 01, 2021
Expires: August 5, 2021

              Circuit Breaker Assisted Congestion Control
                       draft-ietf-mboned-cbacc-02

Abstract

   This document specifies Circuit Breaker Assisted Congestion Control
   (CBACC).  CBACC enables fast-trip Circuit Breakers by publishing rate
   metadata about multicast channels from senders to intermediate
   network nodes or receivers.  The circuit breaker behavior is defined
   as a supplement to receiver driven congestion control systems, to
   preserve network health if misbehaving or malicious receiver
   applications subscribe to a volume of traffic that exceeds capacity
   policies or capability for a network or receiving device.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on August 5, 2021.

Copyright Notice

   Copyright (c) 2021 IETF Trust and the persons identified as the
   document authors.  All rights reserved.

   This document is subject to BCP 78 and the IETF Trust's Legal
   Provisions Relating to IETF Documents
   (https://trustee.ietf.org/license-info) in effect on the date of
   publication of this document.  Please review these documents
   carefully, as they describe your rights and restrictions with respect
   to this document.  Code Components extracted from this document must

Holland                  Expires August 5, 2021                 [Page 1]
Internet-Draft                    CBACC                    February 2021

   include Simplified BSD License text as described in Section 4.e of
   the Trust Legal Provisions and are provided without warranty as
   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Background and Terminology  . . . . . . . . . . . . . . .   4
     1.2.  Venues for Contribution and Discussion  . . . . . . . . .   4
     1.3.  Non-obvious doc choices . . . . . . . . . . . . . . . . .   4
   2.  Circuit Breaker Behavior  . . . . . . . . . . . . . . . . . .   5
     2.1.  Functional Components . . . . . . . . . . . . . . . . . .   5
       2.1.1.  Bitrate Advertisement . . . . . . . . . . . . . . . .   5
       2.1.2.  Circuit Breaker Node  . . . . . . . . . . . . . . . .   5
       2.1.3.  Communication Method  . . . . . . . . . . . . . . . .   6
       2.1.4.  Measurement Function  . . . . . . . . . . . . . . . .   6
       2.1.5.  Trigger Function  . . . . . . . . . . . . . . . . . .   7
       2.1.6.  Reaction  . . . . . . . . . . . . . . . . . . . . . .   8
       2.1.7.  Feedback Control Mechanism  . . . . . . . . . . . . .   9
     2.2.  States  . . . . . . . . . . . . . . . . . . . . . . . . .  10
       2.2.1.  Interface State . . . . . . . . . . . . . . . . . . .  10
       2.2.2.  Flow State  . . . . . . . . . . . . . . . . . . . . .  10
     2.3.  Implementation Design Considerations  . . . . . . . . . .  11
       2.3.1.  Oversubscription Thresholds . . . . . . . . . . . . .  11
       2.3.2.  Fairness Functions  . . . . . . . . . . . . . . . . .  11
   3.  YANG Module . . . . . . . . . . . . . . . . . . . . . . . . .  11
     3.1.  Tree Diagram  . . . . . . . . . . . . . . . . . . . . . .  11
     3.2.  Module  . . . . . . . . . . . . . . . . . . . . . . . . .  11
   4.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .  13
     4.1.  YANG Module Names Registry  . . . . . . . . . . . . . . .  13
     4.2.  The XML Registry  . . . . . . . . . . . . . . . . . . . .  14
   5.  Security Considerations . . . . . . . . . . . . . . . . . . .  14
     5.1.  Metadata Security . . . . . . . . . . . . . . . . . . . .  14
     5.2.  Denial of Service . . . . . . . . . . . . . . . . . . . .  14
       5.2.1.  State Overload  . . . . . . . . . . . . . . . . . . .  14
   6.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .  14
   7.  References  . . . . . . . . . . . . . . . . . . . . . . . . .  15
     7.1.  Normative References  . . . . . . . . . . . . . . . . . .  15
     7.2.  Informative References  . . . . . . . . . . . . . . . . .  15
   Appendix A.  Overjoining  . . . . . . . . . . . . . . . . . . . .  17
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .  18
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