QUIC-LB: Generating Routable QUIC Connection IDs
draft-ietf-quic-load-balancers-04

Document Type Active Internet-Draft (quic WG)
Last updated 2020-08-14
Replaces draft-duke-quic-load-balancers
Stream IETF
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QUIC                                                             M. Duke
Internet-Draft                                         F5 Networks, Inc.
Intended status: Standards Track                                N. Banks
Expires: 15 February 2021                                      Microsoft
                                                          14 August 2020

            QUIC-LB: Generating Routable QUIC Connection IDs
                   draft-ietf-quic-load-balancers-04

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

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   provisions of BCP 78 and BCP 79.

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   This Internet-Draft will expire on 15 February 2021.

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 publication of this document.

Duke & Banks            Expires 15 February 2021                [Page 1]
Internet-Draft                   QUIC-LB                     August 2020

   Please review these documents carefully, as they describe your rights
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   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   3
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   4
   2.  Protocol Objectives . . . . . . . . . . . . . . . . . . . . .   5
     2.1.  Simplicity  . . . . . . . . . . . . . . . . . . . . . . .   5
     2.2.  Security  . . . . . . . . . . . . . . . . . . . . . . . .   5
   3.  First CID octet . . . . . . . . . . . . . . . . . . . . . . .   6
     3.1.  Config Rotation . . . . . . . . . . . . . . . . . . . . .   6
     3.2.  Configuration Failover  . . . . . . . . . . . . . . . . .   7
     3.3.  Length Self-Description . . . . . . . . . . . . . . . . .   7
     3.4.  Format  . . . . . . . . . . . . . . . . . . . . . . . . .   7
   4.  Routing Algorithms  . . . . . . . . . . . . . . . . . . . . .   8
     4.1.  Plaintext CID Algorithm . . . . . . . . . . . . . . . . .   9
       4.1.1.  Configuration Agent Actions . . . . . . . . . . . . .   9
       4.1.2.  Load Balancer Actions . . . . . . . . . . . . . . . .   9
       4.1.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  10
     4.2.  Stream Cipher CID Algorithm . . . . . . . . . . . . . . .  10
       4.2.1.  Configuration Agent Actions . . . . . . . . . . . . .  10
       4.2.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  10
       4.2.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  12
     4.3.  Block Cipher CID Algorithm  . . . . . . . . . . . . . . .  12
       4.3.1.  Configuration Agent Actions . . . . . . . . . . . . .  12
       4.3.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  13
       4.3.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  13
   5.  ICMP Processing . . . . . . . . . . . . . . . . . . . . . . .  13
   6.  Retry Service . . . . . . . . . . . . . . . . . . . . . . . .  14
     6.1.  Common Requirements . . . . . . . . . . . . . . . . . . .  14
     6.2.  No-Shared-State Retry Service . . . . . . . . . . . . . .  15
       6.2.1.  Configuration Agent Actions . . . . . . . . . . . . .  15
       6.2.2.  Service Requirements  . . . . . . . . . . . . . . . .  15
       6.2.3.  Server Requirements . . . . . . . . . . . . . . . . .  17
     6.3.  Shared-State Retry Service  . . . . . . . . . . . . . . .  17
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