QUIC-LB: Generating Routable QUIC Connection IDs
draft-ietf-quic-load-balancers-06

Document Type Active Internet-Draft (quic WG)
Authors Martin Duke  , Nick Banks 
Last updated 2021-02-04
Replaces draft-duke-quic-load-balancers
Stream IETF
Intended RFC status Proposed Standard
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Stream WG state WG Document (wg milestone: Mar 2021 - QUIC-LB: Generating ... )
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QUIC                                                             M. Duke
Internet-Draft                                         F5 Networks, Inc.
Intended status: Standards Track                                N. Banks
Expires: 8 August 2021                                         Microsoft
                                                         4 February 2021

            QUIC-LB: Generating Routable QUIC Connection IDs
                   draft-ietf-quic-load-balancers-06

Abstract

   The QUIC protocol design is resistant to transparent packet
   inspection, injection, and modification by intermediaries.  However,
   the server can explicitly cooperate with network services by agreeing
   to certain conventions and/or sharing state with those services.
   This specification provides a standardized means of solving three
   problems: (1) maintaining routability to servers via a low-state load
   balancer even when the connection IDs in use change; (2) explicit
   encoding of the connection ID length in all packets to assist
   hardware accelerators; and (3) injection of QUIC Retry packets by an
   anti-Denial-of-Service agent on behalf of the server.

Status of This Memo

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

   Internet-Drafts are working documents of the Internet Engineering
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   This Internet-Draft will expire on 8 August 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.

Duke & Banks              Expires 8 August 2021                 [Page 1]
Internet-Draft                   QUIC-LB                   February 2021

   Please review these documents carefully, as they describe your rights
   and restrictions with respect to this document.  Code Components
   extracted from this document must include Simplified BSD License text
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   provided without warranty as described in the Simplified BSD License.

Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   4
     1.1.  Terminology . . . . . . . . . . . . . . . . . . . . . . .   5
     1.2.  Notation  . . . . . . . . . . . . . . . . . . . . . . . .   5
   2.  Protocol Objectives . . . . . . . . . . . . . . . . . . . . .   6
     2.1.  Simplicity  . . . . . . . . . . . . . . . . . . . . . . .   6
     2.2.  Security  . . . . . . . . . . . . . . . . . . . . . . . .   6
   3.  First CID octet . . . . . . . . . . . . . . . . . . . . . . .   7
     3.1.  Config Rotation . . . . . . . . . . . . . . . . . . . . .   7
     3.2.  Configuration Failover  . . . . . . . . . . . . . . . . .   8
     3.3.  Length Self-Description . . . . . . . . . . . . . . . . .   8
     3.4.  Format  . . . . . . . . . . . . . . . . . . . . . . . . .   8
   4.  Load Balancing Preliminaries  . . . . . . . . . . . . . . . .   9
     4.1.  Non-Compliant Connection IDs  . . . . . . . . . . . . . .   9
     4.2.  Arbitrary Algorithms  . . . . . . . . . . . . . . . . . .  10
     4.3.  Server ID Allocation  . . . . . . . . . . . . . . . . . .  11
       4.3.1.  Static Allocation . . . . . . . . . . . . . . . . . .  11
       4.3.2.  Dynamic Allocation  . . . . . . . . . . . . . . . . .  12
   5.  Routing Algorithms  . . . . . . . . . . . . . . . . . . . . .  14
     5.1.  Plaintext CID Algorithm . . . . . . . . . . . . . . . . .  14
       5.1.1.  Configuration Agent Actions . . . . . . . . . . . . .  14
       5.1.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  14
       5.1.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  14
     5.2.  Stream Cipher CID Algorithm . . . . . . . . . . . . . . .  15
       5.2.1.  Configuration Agent Actions . . . . . . . . . . . . .  15
       5.2.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  15
       5.2.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  17
     5.3.  Block Cipher CID Algorithm  . . . . . . . . . . . . . . .  17
       5.3.1.  Configuration Agent Actions . . . . . . . . . . . . .  17
       5.3.2.  Load Balancer Actions . . . . . . . . . . . . . . . .  17
       5.3.3.  Server Actions  . . . . . . . . . . . . . . . . . . .  18
   6.  ICMP Processing . . . . . . . . . . . . . . . . . . . . . . .  18
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