Internet DRAFT - draft-li-rtgwg-gip6-for-quic
draft-li-rtgwg-gip6-for-quic
Network Working Group Z. Li
Internet-Draft S. Chen
Intended status: Standards Track H. Shi
Expires: 27 April 2023 Huawei
24 October 2022
Generalized IPv6 Tunnel (GIP6) for QUIC
draft-li-rtgwg-gip6-for-quic-00
Abstract
This document defines a new encapsulation method for QUIC packet
transmission based on IPv6 extension headers. This method enables
QUIC packet transmission to easily inherit the extended functions of
IPv6.
Requirements Language
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
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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Internet-Drafts are draft documents valid for a maximum of six months
and may be updated, replaced, or obsoleted by other documents at any
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This Internet-Draft will expire on 27 April 2023.
Copyright Notice
Copyright (c) 2022 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.
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Please review these documents carefully, as they describe your rights
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Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . 2
2. Terminology . . . . . . . . . . . . . . . . . . . . . . . . . 2
3. Problem Statement . . . . . . . . . . . . . . . . . . . . . . 3
4. Encapsulated of GIP6 for QUIC . . . . . . . . . . . . . . . . 3
5. Security Considerations . . . . . . . . . . . . . . . . . . . 4
6. IANA Considerations . . . . . . . . . . . . . . . . . . . . . 4
7. References . . . . . . . . . . . . . . . . . . . . . . . . . 4
Authors' Addresses . . . . . . . . . . . . . . . . . . . . . . . 6
1. Introduction
The draft [I-D.li-rtgwg-generalized-ipv6-tunnel] proposes why the
Generalize IPv6 Tunnel is introduced to unify the IP tunnels to
remove the duplicate functions and support new features. QUIC, as a
general-purpose transport layer network protocol, is gradually being
applied on the network side, such as DNS over QUIC [RFC9250] and QUIC
tunnel [I-D.piraux-quic-tunnel]. QUIC tunnel-based packet
transmission also faces the issues to be extended to support new
features.
This document defines encapsulation of QUIC headers into the GIP6
tunnel encapsulation and attempts to solve these issues.
2. Terminology
APN: Application-aware Networking
IPv4: Internet Protocol version 4
IPv6: Internet Protocol version 6
IOAM: In-situ Operations, Administration, and Maintenance
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3. Problem Statement
As mentioned in the draft [I-D.li-rtgwg-generalized-ipv6-tunnel],
many new features, such as Alternate Marking
[I-D.ietf-6man-ipv6-alt-mark] , IOAM
[I-D.ietf-ippm-ioam-ipv6-options], resource
isolation[I-D.ietf-6man-enhanced-vpn-vtn-id] , and
APN[I-D.li-apn-ipv6-encap] , are emerging and the corresponding
encapsulations over the IPv6 are defined. Since there are all kinds
of existing IP tunnels (including UDP-based tunnels), if these new
features need to be supported over these tunnels, it is very
difficult to extend for these tunnels. If QUIC is used as a tunnel
for transmission of data packets in the network, it will also face
the challenge to support these new features.
4. Encapsulated of GIP6 for QUIC
The draft [I-D.li-rtgwg-generalized-ipv6-tunnel] defined the GIP6
tunnel which use the IPv6 header and IPv6 extension header to support
both functions of existing IP tunnels and new features. The GIP6
tunnel is to unify the IP tunnels to remove the duplicate functions
and support new features. This can greatly reduce the repeated
effort to extend the exiting IP tunnels to support the new features.
To support existing QUIC functions, the GIP6 tunnel is extended as
follows:
1. Definition of the QUIC Option: A new option called QUIC Option is
defined to carry the QUIC header information. The QUIC Option MUST
only be encapsulated in the Destination Options Header (DOH).
The following figure shows the data fields format of the QUIC option:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Option Type | Opt Data Len |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| |
| QUIC Header (Variable Bytes) |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 1. QUIC Option
The QUIC Option contains the following fields:
* Option Type: 8-bit selector. QUIC option. Value TBD by IANA.
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* Opt Data Len: 8-bit unsigned integer. Length of the option, in
octets, excluding the Option Type and Option Length fields.
* Option Data: variable. QUIC Header Information. For the detailed
definition of the QUIC headers, please refer to [RFC8999].
2. The function of the UDP header for ECMP can replaced by the flow
label of the IPv6 header in the GIP6 tunnel. To ensure
compatibility, the value of the flow label calculated for the purpose
of ECMP SHOULD be the same as that of the source port of the UDP.
5. Security Considerations
TBD.
6. IANA Considerations
The Option Type should be assigned in IANA's "Destination Options"
registry.
This draft requests the following IPv6 Option Type assignment from
the Destination Options sub-registry of Internet Protocol Version 6
(IPv6) Parameters (https://www.iana.org/assignments/
ipv6-parameters/).
Hex Value Binary Value Description Reference
act chg rest
----------------------------------------------------------------
TBD 00 0 TBD QUIC [This draft]
Figure 2. IANA Considerations
7. References
[I-D.ietf-6man-enhanced-vpn-vtn-id]
Dong, J., Li, Z., Xie, C., Ma, C., and G. Mishra,
"Carrying Virtual Transport Network (VTN) Information in
IPv6 Extension Header", Work in Progress, Internet-Draft,
draft-ietf-6man-enhanced-vpn-vtn-id-01, 11 July 2022,
<https://www.ietf.org/archive/id/draft-ietf-6man-enhanced-
vpn-vtn-id-01.txt>.
[I-D.ietf-6man-ipv6-alt-mark]
Fioccola, G., Zhou, T., Cociglio, M., Qin, F., and R.
Pang, "IPv6 Application of the Alternate Marking Method",
Work in Progress, Internet-Draft, draft-ietf-6man-ipv6-
alt-mark-17, 27 September 2022,
<https://www.ietf.org/archive/id/draft-ietf-6man-ipv6-alt-
mark-17.txt>.
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[I-D.ietf-ippm-ioam-ipv6-options]
Bhandari, S. and F. Brockners, "In-situ OAM IPv6 Options",
Work in Progress, Internet-Draft, draft-ietf-ippm-ioam-
ipv6-options-09, 11 October 2022,
<https://www.ietf.org/archive/id/draft-ietf-ippm-ioam-
ipv6-options-09.txt>.
[I-D.ietf-nvo3-vxlan-gpe]
(Editor), F. M., (editor), L. K., and U. E. (editor),
"Generic Protocol Extension for VXLAN (VXLAN-GPE)", Work
in Progress, Internet-Draft, draft-ietf-nvo3-vxlan-gpe-12,
22 September 2021, <https://www.ietf.org/archive/id/draft-
ietf-nvo3-vxlan-gpe-12.txt>.
[I-D.li-apn-ipv6-encap]
Li, Z., Peng, S., and C. Xie, "Application-aware IPv6
Networking (APN6) Encapsulation", Work in Progress,
Internet-Draft, draft-li-apn-ipv6-encap-05, 31 May 2022,
<https://www.ietf.org/archive/id/draft-li-apn-ipv6-encap-
05.txt>.
[I-D.li-rtgwg-generalized-ipv6-tunnel]
Li, Z., Chen, S., and H. Wang, "Generalized IPv6 Tunnel
(GIP6)", Work in Progress, Internet-Draft, draft-li-rtgwg-
generalized-ipv6-tunnel-01, 20 October 2022,
<https://www.ietf.org/archive/id/draft-li-rtgwg-
generalized-ipv6-tunnel-01.txt>.
[I-D.piraux-quic-tunnel]
Piraux, M., Bonaventure, O., and A. Masputra, "Tunneling
Internet protocols inside QUIC", Work in Progress,
Internet-Draft, draft-piraux-quic-tunnel-03, 12 August
2020, <https://www.ietf.org/archive/id/draft-piraux-quic-
tunnel-03.txt>.
[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119,
DOI 10.17487/RFC2119, March 1997,
<https://www.rfc-editor.org/info/rfc2119>.
[RFC8999] Thomson, M., "Version-Independent Properties of QUIC",
RFC 8999, DOI 10.17487/RFC8999, May 2021,
<https://www.rfc-editor.org/info/rfc8999>.
[RFC9250] Huitema, C., Dickinson, S., and A. Mankin, "DNS over
Dedicated QUIC Connections", RFC 9250,
DOI 10.17487/RFC9250, May 2022,
<https://www.rfc-editor.org/info/rfc9250>.
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Authors' Addresses
Zhenbin Li
Huawei
156 Beiqing Road
Beijing,100095
P.R. China
Email: lizhenbin@huawei.com
Shuanglong Chen
Huawei
156 Beiqing Road
Beijing, 100095
P.R. China
Email: chenshuanglong@huawei.com
Hang Shi
Huawei
156 Beiqing Road
Beijing, 100095
P.R. China
Email: shihang9@huawei.com
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