QUIC-LB: Generating Routable QUIC Connection IDs
draft-ietf-quic-load-balancers-01

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QUIC                                                             M. Duke
Internet-Draft                                         F5 Networks, Inc.
Intended status: Standards Track                                N. Banks
Expires: August 1, 2020                                        Microsoft
                                                        January 29, 2020

            QUIC-LB: Generating Routable QUIC Connection IDs
                   draft-ietf-quic-load-balancers-01

Abstract

   QUIC connection IDs allow continuation of connections across address/
   port 4-tuple changes, and can store routing information for stateless
   or low-state load balancers.  They also can prevent linkability of
   connections across deliberate address migration through the use of
   protected communications between client and server.  This creates
   issues for load-balancing intermediaries.  This specification
   standardizes methods for encoding routing information given a small
   set of configuration parameters.  This framework also enables offload
   of other QUIC functions to trusted intermediaries, given the explicit
   cooperation of the QUIC server.

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 1, 2020.

Copyright Notice

   Copyright (c) 2020 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

Duke & Banks             Expires August 1, 2020                 [Page 1]
Internet-Draft                   QUIC-LB                    January 2020

   publication of this document.  Please review these documents
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   described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Protocol Objectives . . . . . . . . . . . . . . . . . . . . .   4
     2.1.  Simplicity  . . . . . . . . . . . . . . . . . . . . . . .   4
     2.2.  Security  . . . . . . . . . . . . . . . . . . . . . . . .   5
     2.3.  Load Balancer Chains  . . . . . . . . . . . . . . . . . .   5
   3.  First CID octet . . . . . . . . . . . . . . . . . . . . . . .   5
     3.1.  Config Rotation . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Configuration Failover  . . . . . . . . . . . . . . . . .   6
     3.3.  Length Self-Description . . . . . . . . . . . . . . . . .   7
   4.  Routing Algorithms  . . . . . . . . . . . . . . . . . . . . .   7
     4.1.  Plaintext CID Algorithm . . . . . . . . . . . . . . . . .   8
       4.1.1.  Configuration Agent Actions . . . . . . . . . . . . .   8
       4.1.2.  Load Balancer Actions . . . . . . . . . . . . . . . .   9
       4.1.3.  Server Actions  . . . . . . . . . . . . . . . . . . .   9
     4.2.  Obfuscated CID Algorithm  . . . . . . . . . . . . . . . .   9
       4.2.1.  Configuration Agent Actions . . . . . . . . . . . . .   9
       4.2.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  10
       4.2.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  10
     4.3.  Stream Cipher CID Algorithm . . . . . . . . . . . . . . .  10
       4.3.1.  Configuration Agent Actions . . . . . . . . . . . . .  11
       4.3.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  11
       4.3.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  12
     4.4.  Block Cipher CID Algorithm  . . . . . . . . . . . . . . .  12
       4.4.1.  Configuration Agent Actions . . . . . . . . . . . . .  12
       4.4.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  13
       4.4.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  13
   5.  Retry Service . . . . . . . . . . . . . . . . . . . . . . . .  13
     5.1.  Common Requirements . . . . . . . . . . . . . . . . . . .  14
     5.2.  No-Shared-State Retry Service . . . . . . . . . . . . . .  14
       5.2.1.  Service Requirements  . . . . . . . . . . . . . . . .  14