QUIC-LB: Generating Routable QUIC Connection IDs
draft-ietf-quic-load-balancers-04
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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This Internet-Draft will expire on 15 February 2021.
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Duke & Banks Expires 15 February 2021 [Page 1]
Internet-Draft QUIC-LB August 2020
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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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