RE: Working Group Last Call for <draft-ietf-6man-ipv6-alt-mark>

Hi Greg,
Thanks a lot for your support.
Regarding your question, your understanding is correct, Alternate Marking bits are carried by the Options Header and it may have some impact on the path MTU. We can surely mention this point in the Security Considerations. Anyway the relative small size (48 bit in total) of this HBH/DOH and its application to a controlled domain mitigate the problem.

Your help for the revision is appreciated. We will work on a new version after the WGLC and then I can send you a text copy.

Regards,

Giuseppe

From: ipv6 [mailto:ipv6-bounces@ietf.org] On Behalf Of Greg Mirsky
Sent: Thursday, December 24, 2020 2:41 AM
To: Bob Hinden <bob.hinden@gmail.com>
Cc: IPv6 List <ipv6@ietf.org>
Subject: Re: Working Group Last Call for <draft-ietf-6man-ipv6-alt-mark>

Dear All,
I've read the draft and I support its publication.

I have a question related to the operation of a node that applies the Alternate Marking to a flow. As I understand it, the marking node (let's call it that) will add an IPv6 header with the Options Header that includes the AltMark Option. Is my understanding correct? If it is, then there would be an impact on the packet sizes for the monitored flow. Some packets with the additional IPv6 header might exceed the MTU. Should that be noted in the Security Considerations? Can it be mitigated?

Also, text can benefit from editorial updates. I can give it a try if the authors like to send me a text copy.

Regards,
Greg

On Sun, Dec 20, 2020 at 11:11 AM Bob Hinden <bob.hinden@gmail.com<mailto:bob.hinden@gmail.com>> wrote:
This message starts a new three week 6MAN Working Group Last Call on advancing:

       Title           : IPv6 Application of the Alternate Marking Method
       Authors         : Giuseppe Fioccola
                         Tianran Zhou
                         Mauro Cociglio
                         Fengwei Qin
                         Ran Pang
        Filename        : draft-ietf-6man-ipv6-alt-mark-02.txt
        Pages           : 15
        Date            : 2020-10-13

as a Proposed Standard.  We normally do two week last calls, but given the holidays, we think three weeks is appropriate.

Substantive comments and statements of support for publishing this document should be directed to the ipv6@ietf.org<mailto:ipv6@ietf.org> mailing list.  Editorial suggestions can be sent to the authors.  This last call will end on 10 January 2021.

Thanks,
Bob & Ole

> Begin forwarded message:
>
> From: internet-drafts@ietf.org<mailto:internet-drafts@ietf.org>
> Subject: I-D Action: draft-ietf-6man-ipv6-alt-mark-02.txt
> Date: October 13, 2020 at 7:10:42 AM PDT
> To: <i-d-announce@ietf.org<mailto:i-d-announce@ietf.org>>
> Cc: ipv6@ietf.org<mailto:ipv6@ietf.org>
> Reply-To: ipv6@ietf.org<mailto:ipv6@ietf.org>
>
>
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
> This draft is a work item of the IPv6 Maintenance WG of the IETF.
>
>        Title           : IPv6 Application of the Alternate Marking Method
>        Authors         : Giuseppe Fioccola
>                          Tianran Zhou
>                          Mauro Cociglio
>                          Fengwei Qin
>                          Ran Pang
>       Filename        : draft-ietf-6man-ipv6-alt-mark-02.txt
>       Pages           : 15
>       Date            : 2020-10-13
>
> Abstract:
>   This document describes how the Alternate Marking Method can be used
>   as the passive performance measurement tool in an IPv6 domain and
>   reports implementation considerations.  It proposes how to define a
>   new Extension Header Option to encode alternate marking technique and
>   both Hop-by-Hop Options Header and Destination Options Header are
>   considered.
>
>
>
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-6man-ipv6-alt-mark/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-6man-ipv6-alt-mark-02
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-ipv6-alt-mark-02
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-6man-ipv6-alt-mark-02
>
>
> Please note that it may take a couple of minutes from the time of submission
> until the htmlized version and diff are available at tools.ietf.org<http://tools.ietf.org>.
>
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
>
--------------------------------------------------------------------
IETF IPv6 working group mailing list
ipv6@ietf.org<mailto:ipv6@ietf.org>
Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
--------------------------------------------------------------------