Generic UDP Encapsulation
draft-ietf-intarea-gue-09
| Document | Type | Active Internet-Draft (intarea WG) | |
|---|---|---|---|
| Authors | Tom Herbert , Lucy Yong , Osama Zia | ||
| Last updated | 2020-10-05 (latest revision 2019-10-26) | ||
| Replaces | draft-ietf-nvo3-gue | ||
| Stream | Internent Engineering Task Force (IETF) | ||
| Intended RFC status | Proposed Standard | ||
| Formats | plain text pdf htmlized (tools) htmlized bibtex | ||
| Reviews | |||
| Stream | WG state | Submitted to IESG for Publication | |
| Document shepherd | Fred Templin | ||
| Shepherd write-up | Show (last changed 2019-01-04) | ||
| IESG | IESG state | AD Evaluation::Revised I-D Needed | |
| Action Holders |
(None)
|
||
| Consensus Boilerplate | Unknown | ||
| Telechat date | |||
| Responsible AD | Éric Vyncke | ||
| Send notices to | (None) | ||
Internet Area WG T. Herbert
Internet-Draft Quantonium
Intended status: Standard track L. Yong
Expires April 28, 2020 Independent
O. Zia
Microsoft
October 26, 2019
Generic UDP Encapsulation
draft-ietf-intarea-gue-09
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Herbert, Yong, Zia Expires April, 2019 [Page 1]
Internet Draft Generic UDP Encapsulation October 26, 2019
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Herbert, Yong, Zia Expires April, 2019 [Page 2]
Internet Draft Generic UDP Encapsulation October 26, 2019
Abstract
This specification describes Generic UDP Encapsulation (GUE), which
is a scheme for using UDP to encapsulate packets of different IP
protocols for transport across layer 3 networks. By encapsulating
packets in UDP, specialized capabilities in networking hardware for
efficient handling of UDP packets can be leveraged. GUE specifies
basic encapsulation methods upon which higher level constructs, such
as tunnels and overlay networks for network virtualization, can be
constructed. GUE is extensible by allowing optional data fields as
part of the encapsulation, and is generic in that it can encapsulate
packets of various IP protocols.
Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1. Applicability . . . . . . . . . . . . . . . . . . . . . . . 5
1.2. Terminology and acronyms . . . . . . . . . . . . . . . . . 6
1.3. Requirements Language . . . . . . . . . . . . . . . . . . . 7
2. Base packet format . . . . . . . . . . . . . . . . . . . . . . 8
2.1. GUE variant . . . . . . . . . . . . . . . . . . . . . . . . 8
3. Variant 0 . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
3.1. Header format . . . . . . . . . . . . . . . . . . . . . . . 9
3.2. Proto/ctype field . . . . . . . . . . . . . . . . . . . . . 10
3.2.1. Proto field . . . . . . . . . . . . . . . . . . . . . . 10
3.2.2. Ctype field . . . . . . . . . . . . . . . . . . . . . . 10
3.3. Flags and extension fields . . . . . . . . . . . . . . . . 12
3.3.1. Requirements . . . . . . . . . . . . . . . . . . . . . 12
3.3.2. Example GUE header with extension fields . . . . . . . 12
3.4. Surplus space . . . . . . . . . . . . . . . . . . . . . . . 13
3.5. Message types . . . . . . . . . . . . . . . . . . . . . . . 13
3.5.1. Control messages . . . . . . . . . . . . . . . . . . . 13
3.5.2. Data messages . . . . . . . . . . . . . . . . . . . . . 14
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