Protocol Action: 'Geneve: Generic Network Virtualization Encapsulation' to Proposed Standard (draft-ietf-nvo3-geneve-16.txt)
The IESG <iesg-secretary@ietf.org> Tue, 28 April 2020 14:52 UTC
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From: The IESG <iesg-secretary@ietf.org>
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Subject: Protocol Action: 'Geneve: Generic Network Virtualization Encapsulation' to Proposed Standard (draft-ietf-nvo3-geneve-16.txt)
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Cc: nvo3@ietf.org, martin.vigoureux@nokia.com, nvo3-chairs@ietf.org, Matthew Bocci <matthew.bocci@nokia.com>, matthew.bocci@nokia.com, rfc-editor@rfc-editor.org, The IESG <iesg@ietf.org>, draft-ietf-nvo3-geneve@ietf.org
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Date: Tue, 28 Apr 2020 07:52:47 -0700
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The IESG has approved the following document: - 'Geneve: Generic Network Virtualization Encapsulation' (draft-ietf-nvo3-geneve-16.txt) as Proposed Standard This document is the product of the Network Virtualization Overlays Working Group. The IESG contact persons are Alvaro Retana, Deborah Brungard and Martin Vigoureux. A URL of this Internet Draft is: https://datatracker.ietf.org/doc/draft-ietf-nvo3-geneve/ Technical Summary Network virtualization involves the cooperation of devices with a wide variety of capabilities such as software and hardware tunnel endpoints, transit fabrics, and centralized control clusters. As a result of their role in tying together different elements in the system, the requirements on tunnels are influenced by all of these components. Flexibility is therefore the most important aspect of a tunnel protocol if it is to keep pace with the evolution of the system. This document describes Geneve, an encapsulation protocol designed to recognize and accommodate these changing capabilities and needs. Working Group Summary The document describes the Geneve encapsulation format for NVO3. NVO3 has considered many different encapsulation formats, also including GUE (draft-ietf-nvo3-gue-05 and draft-ietf-intarea-gue-07), and VXLAN-GPE (draft-ietf-nvo3-vxlan-gpe-06). A design team was chartered to analyse the available encapsulations and recommend one to go forward. The result of this choice was Geneve, and the design team's conclusions are documented in draft-dt-nvo3-encap-01. These conclusions were accepted by the working group. There are two IPR declarations on the draft. These were made in 2014 prior to the draft being adopted as a working group draft, and the working group is well aware of these. Document Quality No concerns about the quality of the document, it has been widely reviewed and discussed on the list over a number of years. Few nits remains relating to outdated references. The document has been the subject of early reviews by the Routing Area Directorate, Transport Area Review Team, and the Security Area Directorate. Although all of these review raise comments, they were all resolved with the agreement of the reviewers. The document also received a significant number of comments from the editor of a number of security drafts in NVO3. Most of these were resolved, and all comments were addressed on the list or as changes to the document. The most significant outstanding comment related to the fact that Geneve recommends using DTLS and IPSec for end to end security. This is not possible if transit devices that need to inspect the packet header. This limitation is indicated in the draft. There was also some discussion around the precise wording of restrictions on the order of processing and dependencies between options in the Geneve header, but no consensus to change the current text in the draft. There was consensus to move forward with the draft. Personnel Document Shepherd: Matthew Bocci Responsible Area Director: Martin Vigoureux