Overview of Pre-Congestion Notification Encoding
draft-ietf-pcn-encoding-comparison-09
Revision differences
Document history
Date | Rev. | By | Action |
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2012-03-29
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09 | Martin Stiemerling | Responsible AD changed to Martin Stiemerling from David Harrington |
2012-03-19
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09 | Cindy Morgan | State changed to RFC Ed Queue from Approved-announcement sent |
2012-03-19
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09 | (System) | IANA Action state changed to No IC |
2012-03-19
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09 | Cindy Morgan | State changed to Approved-announcement sent from Approved-announcement to be sent |
2012-03-19
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09 | Cindy Morgan | IESG has approved the document |
2012-03-19
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09 | Cindy Morgan | Closed "Approve" ballot |
2012-03-19
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09 | Cindy Morgan | Ballot approval text was generated |
2012-03-19
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09 | Cindy Morgan | Ballot writeup was changed |
2012-03-19
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09 | David Harrington | State changed to Approved-announcement to be sent from IESG Evaluation::AD Followup |
2012-03-19
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09 | David Harrington | Ballot approval text was generated |
2012-03-19
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09 | David Harrington | Ballot approval text was generated |
2012-03-19
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09 | David Harrington | Ballot approval text was generated |
2012-03-19
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09 | David Harrington | Ballot approval text was generated |
2012-03-19
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09 | Adrian Farrel | [Ballot comment] Thank you for addressing my Discuss issues and Comments. Note that the revised text in Section 5 (for which, thanks) is missing blank … [Ballot comment] Thank you for addressing my Discuss issues and Comments. Note that the revised text in Section 5 (for which, thanks) is missing blank lines between the paragraphs. |
2012-03-19
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09 | Adrian Farrel | [Ballot Position Update] Position for Adrian Farrel has been changed to No Objection from Discuss |
2012-03-09
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09 | Russ Housley | [Ballot Position Update] Position for Russ Housley has been changed to No Objection from Discuss |
2012-03-09
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09 | David Harrington | Ballot writeup was changed |
2012-03-08
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09 | (System) | Sub state has been changed to AD Followup from Revised ID Needed |
2012-03-08
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09 | Georgios Karagiannis | New version available: draft-ietf-pcn-encoding-comparison-09.txt |
2012-03-08
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08 | Stewart Bryant | [Ballot Position Update] Position for Stewart Bryant has been changed to No Objection from Discuss |
2012-03-06
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08 | David Harrington | State changed to IESG Evaluation::Revised ID Needed from IESG Evaluation::AD Followup |
2012-03-01
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08 | Samuel Weiler | Request for Last Call review by SECDIR Completed. Reviewer: Steve Hanna. |
2012-03-01
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08 | Cindy Morgan | State changed to IESG Evaluation::AD Followup from Waiting for AD Go-Ahead |
2012-03-01
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08 | Russ Housley | [Ballot discuss] The Gen-ART Review by Pete McCann on 28-Feb-2012 raised an inconsistency that needs to be resolved. Section 3.3.3.4 says: > … [Ballot discuss] The Gen-ART Review by Pete McCann on 28-Feb-2012 raised an inconsistency that needs to be resolved. Section 3.3.3.4 says: > > With the normal mode, the ECN field of the inner header is copied > to the ECN field of the outer header on encapsulation (like the > limited functionality option in Section 3.3.3.1). > The limited functionality option says to set the outer header to not-ECT. This seems to contradict the above statement. |
2012-03-01
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08 | Russ Housley | [Ballot comment] The Gen-ART Review by Pete McCann on 28-Feb-2012 included some editorial suggestions that deserve consideration (1) Section 3.3.3.3 says: > … [Ballot comment] The Gen-ART Review by Pete McCann on 28-Feb-2012 included some editorial suggestions that deserve consideration (1) Section 3.3.3.3 says: > > ... full-functionality option in Section 3.3.2.2. > I think you meant "Section 3.3.3.2". One other place in this paragraph needs this correction too. (2) Section 4.2 says: > > The problem with 3-in-1 encoding is that the 10-codepoint does > not survive decapsulation with the tunneling options in > Section 3.3.2.1 - 3.3.2.3. > Again, you meant 3.3.3.1 - 3.3.3.3 |
2012-03-01
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08 | Russ Housley | [Ballot Position Update] New position, Discuss, has been recorded for Russ Housley |
2012-03-01
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08 | Stewart Bryant | [Ballot discuss] This is a discuss discuss, in that I would like to discuss with the IESG whether this work should more properly be classified … [Ballot discuss] This is a discuss discuss, in that I would like to discuss with the IESG whether this work should more properly be classified as experimental. |
2012-03-01
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08 | Stewart Bryant | [Ballot Position Update] New position, Discuss, has been recorded for Stewart Bryant |
2012-03-01
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08 | Gonzalo Camarillo | [Ballot Position Update] New position, No Objection, has been recorded for Gonzalo Camarillo |
2012-02-29
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08 | Wesley Eddy | [Ballot Position Update] New position, No Objection, has been recorded for Wesley Eddy |
2012-02-29
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08 | Ron Bonica | [Ballot Position Update] New position, No Objection, has been recorded for Ronald Bonica |
2012-02-29
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08 | Robert Sparks | [Ballot Position Update] New position, No Objection, has been recorded for Robert Sparks |
2012-02-29
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08 | Adrian Farrel | [Ballot discuss] Section 3.2.3 I cannot reconcile the text in option (1) that says: with the conclusion of the section that says: Option (1) … [Ballot discuss] Section 3.2.3 I cannot reconcile the text in option (1) that says: with the conclusion of the section that says: Option (1) seems to be the most viable and efficient solution. If it is the intention of the PCN working group to be "PCN for IP-only networks" then I do think this could be s[elled out. OTOH, if MPLS is in scope, then surely option (1) is impractical. Note that draft-ietf-pcn-3-in-1-encoding makes a specific statement about applicability only to IP. --- What does "Primarily" mean in this context? I would like you to replace the passive voice in Section 4.5 so I can tell who made the decision! Additionally, I would like to understand why there are other PCN working group documents for other encodings (draft-ietf-pcn-3-state-encoding, draft-ietf-pcn-psdm-encoding) if this section represent a full statement of the WG's decisions. --- I'm afraid I found the conclusion in Section 5 particularly impenetrable. Could you: - Break out "what we did in this document" as a separate paragraph. - Make a definitive statement about what the WG has concluded. - Place the summary of the reasons for the conclusion as a third paragraph. |
2012-02-29
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08 | Adrian Farrel | [Ballot comment] In Section 1 This requires at least three different codepoints for not-marked PCN traffic, PCN traffic re-marked by the threshold-marker, … [Ballot comment] In Section 1 This requires at least three different codepoints for not-marked PCN traffic, PCN traffic re-marked by the threshold-marker, and PCN traffic re-marked by the excess-traffic-marker. Please insert a colon after "codepoints" in order to fix the meaning. --- In Section 1 This document summarizes these issues for historical purposes. Do you want to publish this as a Historic RFC? --- Section 3 The Differentiated Services (DS) field is chosen for the encoding of PCN marks. This use of the passive voice is not helpful! - Has the choice already been made? If so give a reference. - Does this document document the choice being made? If so give a forward pointer or explanation. - Or is this just commentary? :-) --- I think Section 3.1 makes [RFC0793], [RFC2474], and [RFC3168] into normative references. 3.3.1 reinfotces that for [RFC3168]. Section 3.3 and 3.3.2 appear to make [RFC4774] normative. --- Section 3.3.3.4 uses "CU" before it is explained in Seciton 4 and defined in Section 4.3 --- Section 4 Figure 7 summarizes these PCN encodings. as summarized in Figure 7. :-) |
2012-02-29
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08 | Adrian Farrel | [Ballot Position Update] New position, Discuss, has been recorded for Adrian Farrel |
2012-02-28
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08 | Peter Saint-Andre | [Ballot Position Update] New position, No Objection, has been recorded for Peter Saint-Andre |
2012-02-27
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08 | Stephen Farrell | [Ballot Position Update] New position, No Objection, has been recorded for Stephen Farrell |
2012-02-23
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08 | (System) | State changed to Waiting for AD Go-Ahead from In Last Call. |
2012-02-18
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08 | Samuel Weiler | Request for Last Call review by SECDIR is assigned to Steve Hanna |
2012-02-18
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08 | Samuel Weiler | Request for Last Call review by SECDIR is assigned to Steve Hanna |
2012-02-17
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08 | Amanda Baber | We understand that this document doesn't require any IANA actions. |
2012-02-10
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08 | Jean Mahoney | Request for Last Call review by GENART is assigned to Pete McCann |
2012-02-10
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08 | Jean Mahoney | Request for Last Call review by GENART is assigned to Pete McCann |
2012-02-09
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08 | David Harrington | Placed on agenda for telechat - 2012-03-01 |
2012-02-09
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08 | David Harrington | [Ballot Position Update] New position, Yes, has been recorded for David Harrington |
2012-02-09
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08 | David Harrington | Ballot has been issued |
2012-02-09
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08 | David Harrington | Created "Approve" ballot |
2012-02-09
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08 | Cindy Morgan | Last call sent |
2012-02-09
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08 | Cindy Morgan | State changed to In Last Call from Last Call Requested. The following Last Call Announcement was sent out: From: The IESG To: IETF-Announce CC: Reply-To: … State changed to In Last Call from Last Call Requested. The following Last Call Announcement was sent out: From: The IESG To: IETF-Announce CC: Reply-To: ietf@ietf.org Subject: Last Call: (Overview of Pre-Congestion Notification Encoding) to Informational RFC The IESG has received a request from the Congestion and Pre-Congestion Notification WG (pcn) to consider the following document: - 'Overview of Pre-Congestion Notification Encoding' as an Informational RFC The IESG plans to make a decision in the next few weeks, and solicits final comments on this action. Please send substantive comments to the ietf@ietf.org mailing lists by 2012-02-23. Exceptionally, comments may be sent to iesg@ietf.org instead. In either case, please retain the beginning of the Subject line to allow automated sorting. Abstract The objective of Pre-Congestion Notification (PCN) is to protect the quality of service (QoS) of inelastic flows within a Diffserv domain. On every link in the PCN domain, the overall rate of the PCN-traffic is metered, and PCN-packets are appropriately marked when certain configured rates are exceeded. Egress nodes provide decision points with information about the PCN-marks of PCN-packets which allows them to take decisions about whether to admit or block a new flow request, and to terminate some already admitted flows during serious pre- congestion. The PCN Working Group explored a number of approaches for encoding this pre-congestion information into the IP header. This document provides details of all those approaches along with an explanation of the constraints that had to be met by any solution. The file can be obtained via http://datatracker.ietf.org/doc/draft-ietf-pcn-encoding-comparison/ IESG discussion can be tracked via http://datatracker.ietf.org/doc/draft-ietf-pcn-encoding-comparison/ No IPR declarations have been submitted directly on this I-D. |
2012-02-09
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08 | David Harrington | Ballot writeup text changed |
2012-02-09
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08 | David Harrington | Last Call was requested |
2012-02-09
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08 | (System) | Ballot writeup text was added |
2012-02-09
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08 | (System) | Last call text was added |
2012-02-09
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08 | David Harrington | State changed to Last Call Requested from AD Evaluation::AD Followup. |
2012-02-09
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08 | David Harrington | Last Call text changed |
2012-02-08
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08 | (System) | Sub state has been changed to AD Follow up from New Id Needed |
2012-02-08
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08 | (System) | New version available: draft-ietf-pcn-encoding-comparison-08.txt |
2012-01-23
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08 | David Harrington | State changed to AD Evaluation::Revised ID Needed from AD Evaluation. AD review of pcn-encoding comparison 1) in 2.2.4, "The terminationalgorithm imposed in the standards ..." … State changed to AD Evaluation::Revised ID Needed from AD Evaluation. AD review of pcn-encoding comparison 1) in 2.2.4, "The terminationalgorithm imposed in the standards ..." - what standards? references? 2) in 3.3.2.4, why !!! and !? why do we need two ways? 3) in 3.3.3.4, it says this document updates RFC3168, but neither the header nor abstract nor introduction state that this updates RFC3168. see also 4.5. |
2012-01-23
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08 | David Harrington | State changed to AD Evaluation from AD Evaluation::External Party. |
2012-01-15
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07 | (System) | New version available: draft-ietf-pcn-encoding-comparison-07.txt |
2011-11-01
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08 | Pasi Sarolahti | Request for Early review by TSVDIR Completed. Reviewer: Pasi Sarolahti. |
2011-10-18
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08 | David Harrington | Request for Early review by TSVDIR is assigned to Pasi Sarolahti |
2011-10-18
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08 | David Harrington | Request for Early review by TSVDIR is assigned to Pasi Sarolahti |
2011-10-18
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08 | David Harrington | State changed to AD Evaluation::External Party from Publication Requested. TSVDIR review requested - Pasi Sarolahti |
2011-10-10
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08 | Cindy Morgan | Document shepherd write-up for 2011-07-02 draft-ietf-pcn-encoding-comparison-06 (1.a) Who is the Document Shepherd for this document? > Steven Blake, PCN co-chair Has the Document Shepherd personally reviewed this version of the document and, in particular, does he or she believe this version is ready for forwarding to the IESG for publication? > Yes & yes. (1.b) Has the document had adequate review both from key WG members and from key non-WG members? > WG members - Yes Does the Document Shepherd have any concerns about the depth or breadth of the reviews that have been performed? > No (1.c) Does the Document Shepherd have concerns that the document needs more review from a particular or broader perspective, e.g., security, operational complexity, someone familiar with AAA, internationalization or XML? > No (1.d) Does the Document Shepherd have any specific concerns or issues with this document that the Responsible Area Director and/or the IESG should be aware of? For example, perhaps he or she is uncomfortable with certain parts of the document, or has concerns whether there really is a need for it. > No In any event, if the WG has discussed those issues and has indicated that it still wishes to advance the document, detail those concerns here. > Not applicable Has an IPR disclosure related to this document been filed? If so, please include a reference to the disclosure and summarize the WG discussion and conclusion on this issue. > No (1.e) How solid is the WG consensus behind this document? Does it represent the strong concurrence of a few individuals, with others being silent, or does the WG as a whole understand and agree with it? > This document has been under development for several years. > The -04 version generated significant discussion on the > working group mailing list. The editor addressed the comments > to everyone's satisfaction. There are no vocal dissenters. (1.f) Has anyone threatened an appeal or otherwise indicated extreme discontent? If so, please summarise the areas of conflict in separate email messages to the Responsible Area Director. (It should be in a separate email because this questionnaire is entered into the ID Tracker.) > No (1.g) Has the Document Shepherd personally verified that the document satisfies all ID nits? (See the Internet-Drafts Checklist and http://tools.ietf.org/tools/idnits/). Boilerplate checks are not enough; this check needs to be thorough. Has the document met all formal review criteria it needs to, such as the MIB Doctor, media type and URI type reviews? > The document passes ID-nits. (1.h) Has the document split its references into normative and informative? > The document is a rationale document and has no normative > references. The reference section is entitled "Informative > References". Are there normative references to documents that are not ready for advancement or are otherwise in an unclear state? If such normative references exist, what is the strategy for their completion? Are there normative references that are downward references, as described in [RFC3967]? If so, list these downward references to support the Area Director in the Last Call procedure for them [RFC3967]. > Not applicable. (1.i) Has the Document Shepherd verified that the document IANA consideration section exists and is consistent with the body of the document? > An IANA Considerations section exists, but no requests are > made to IANA. If the document specifies protocol extensions, are reservations requested in appropriate IANA registries? Are the IANA registries clearly identified? If the document creates a new registry, does it define the proposed initial contents of the registry and an allocation procedure for future registrations? Does it suggest a reasonable name for the new registry? See [RFC5226]. If the document describes an Expert Review process has Shepherd conferred with the Responsible Area Director so that the IESG can appoint the needed Expert during the IESG Evaluation? > Not applicable (1.j) Has the Document Shepherd verified that sections of the document that are written in a formal language, such as XML code, BNF rules, MIB definitions, etc., validate correctly in an automated checker? > Not applicable (1.k) The IESG approval announcement includes a Document Announcement Write-Up. Please provide such a Document Announcement Write-Up? Recent examples can be found in the "Action" announcements for approved documents. The approval announcement contains the following sections: Technical Summary > The PCN mechanism in routers in the interior of a PCN domain marks > packets when certain configured rates are exceeded. The PCN working > group explored a number of approaches for encoding this pre-congestion > information into the IP header. This document describes the various > approaches that were examined and discusses the constraints that had > to be satisfied by a viable encoding mechanism. Working Group Summary > The document was subject to thorough review by the PCN working > group, and strong consensus for publication was reached. Document Quality > The document was reviewed by the document shephard (Steven Blake). |
2011-10-10
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08 | Cindy Morgan | Draft added in state Publication Requested |
2011-10-10
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08 | Cindy Morgan | [Note]: 'Steven Blake, PCN co-chair (slblake@petri-meat.com) is the document shepherd.' added |
2011-07-02
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08 | Steven Blake | Correction: No nits; no -07 version of this document forthcoming. |
2011-07-02
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08 | Steven Blake | IETF state changed to Submitted to IESG for Publication from Submitted to IESG for Publication |
2011-07-02
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08 | Steven Blake | Document shepherd write-up submitted. -07 version will be posted to correct one nit (pg. 2 59 lines long). |
2011-07-02
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08 | Steven Blake | IETF state changed to Submitted to IESG for Publication from WG Consensus: Waiting for Write-Up |
2011-07-02
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08 | Steven Blake | Document shepherd write-up submitted. |
2011-07-02
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08 | Steven Blake | |
2011-07-02
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08 | Steven Blake | Document shepherd write-up submitted. |
2011-07-02
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08 | Steven Blake | Annotation tag Doc Shepherd Follow-up Underway cleared. |
2011-07-02
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08 | Steven Blake | Changed protocol writeup |
2011-06-17
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06 | (System) | New version available: draft-ietf-pcn-encoding-comparison-06.txt |
2011-06-07
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08 | Steven Blake | IETF state changed to WG Consensus: Waiting for Write-Up from WG Document |
2011-06-07
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08 | Steven Blake | WGLC succeeded 2011-04-26 |
2011-06-07
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08 | Steven Blake | Annotation tag Doc Shepherd Follow-Up Underway set. |
2011-04-13
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05 | (System) | New version available: draft-ietf-pcn-encoding-comparison-05.txt |
2011-02-28
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04 | (System) | New version available: draft-ietf-pcn-encoding-comparison-04.txt |
2010-10-22
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03 | (System) | New version available: draft-ietf-pcn-encoding-comparison-03.txt |
2010-09-09
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08 | (System) | Document has expired |
2010-03-08
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02 | (System) | New version available: draft-ietf-pcn-encoding-comparison-02.txt |
2009-10-26
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01 | (System) | New version available: draft-ietf-pcn-encoding-comparison-01.txt |
2009-07-06
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00 | (System) | New version available: draft-ietf-pcn-encoding-comparison-00.txt |