Re: [ippm] New Version Notification for draft-spiegel-ippm-ioam-rawexport-01.txt
Mickey Spiegel <mspiegel@barefootnetworks.com> Thu, 25 July 2019 15:26 UTC
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From: Mickey Spiegel <mspiegel@barefootnetworks.com>
Date: Thu, 25 Jul 2019 08:25:27 -0700
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To: Andrew Feren <andrew.feren=40plixer.com@dmarc.ietf.org>
Cc: Mickey Spiegel <mspiegel=40barefootnetworks.com@dmarc.ietf.org>, IETF IPPM WG <ippm@ietf.org>
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Subject: Re: [ippm] New Version Notification for draft-spiegel-ippm-ioam-rawexport-01.txt
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On Thu, Jul 25, 2019 at 6:34 AM Andrew Feren <andrew.feren= 40plixer.com@dmarc.ietf.org> wrote: > Oh. I see what is going on. You want varlen and padding without sectionExportedOctets. > I’ll finish my coffee and the draft before saying anything else. > See slide 9 of the presentation at https://datatracker.ietf.org/meeting/105/materials/slides-105-opsawg-draft-spiegel-ippm-ioam-rawexport-00 The primary point is the ability to add 0 to 3 octets of padding when using variable length, in order to preserve 4 byte alignment. With the existing ipHeaderPacketSection with variable length, no padding is allowed, so if the packet length is not a multiple of 4 octets the next information element or next record will not be 4 byte aligned. Mickey > -Andrew > > On Jul 25, 2019, at 9:12 AM, Andrew Feren < > andrew.feren=40plixer.com@dmarc.ietf.org> wrote: > > Hi Mikey, > > I’m coming in way late on this, but somehow this flew under my radar until > I saw you present in Montreal. I haven’t given it a full read yet, but I > do have one question. Why do you need a new IE to include padding? Why > not use the existing ipHeaderPacketSection with the existing paddingOctets > IE? > > -Andrew > > On Oct 22, 2018, at 8:26 PM, Mickey Spiegel < > mspiegel=40barefootnetworks.com@dmarc.ietf.org> wrote: > > A new version of draft-spiegel-ippm-ioam-rawexport has been posted. > > The new version updates references to the IOAM encap drafts, and adds a > code point for IPv6. > > New IPFIX information elements ipHeaderPacketSectionWithPadding and > ethernetFrameSection are added. These address the issue of alignment with > variable length packet sections such as the existing ipHeaderPacketSection > and dataLinkFrameSection. In particular they allow for the insertion of up > to 3 octets of padding in order to preserve alignment for subsequent > information elements, and for additional records in the same set. The > ethernetFrameSection also avoids the need to include the dataLinkFrameType > and dataLinkFrameSize information elements. > > Mickey > > ---------- Forwarded message --------- > From: <internet-drafts@ietf.org> > Date: Mon, Oct 22, 2018 at 4:33 PM > Subject: New Version Notification for > draft-spiegel-ippm-ioam-rawexport-01.txt > > A new version of I-D, draft-spiegel-ippm-ioam-rawexport-01.txt > has been successfully submitted by Mickey Spiegel and posted to the > IETF repository. > > Name: draft-spiegel-ippm-ioam-rawexport > Revision: 01 > Title: In-situ OAM raw data export with IPFIX > Document date: 2018-10-22 > Group: Individual Submission > Pages: 22 > URL: > https://www.ietf.org/internet-drafts/draft-spiegel-ippm-ioam-rawexport-01.txt > <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.ietf.org%2finternet-drafts%2fdraft-spiegel-ippm-ioam-rawexport-01.txt&c=E,1,XLWC6KoyMbYRdm3X_R7ua7ysLxLB6W9wYAGQdFAieG8olfziOwoyjJvxKA_lINQ94LWjiFPgKLNm1T8hXhl9GZHeZA-CebmtDSM4DN4qVhxqmaX-qA,,&typo=1> > Status: > https://datatracker.ietf.org/doc/draft-spiegel-ippm-ioam-rawexport/ > <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fdatatracker.ietf.org%2fdoc%2fdraft-spiegel-ippm-ioam-rawexport%2f&c=E,1,AjAhXJCCP2-K3r_bhlY6tWekEre6khI9dAEE7K0D9rShsu0J7QOAMtOuOBjm9DoT_yTGSejvrvahlkrFy2WyWQ6TGBHqzhuJMVdY74ggJv2R&typo=1> > Htmlized: > https://tools.ietf.org/html/draft-spiegel-ippm-ioam-rawexport-01 > <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2ftools.ietf.org%2fhtml%2fdraft-spiegel-ippm-ioam-rawexport-01&c=E,1,Q41YF2RIE308dAfPAbMtG0U2iC6VhaVmo8D95QwB80mZtGjDyyQIJF6RIA57yu4JSn2QZNEM6yP7i7NAufko5gfDAEF0pBQLjp-CJRiCMZ4X&typo=1> > Htmlized: > https://datatracker.ietf.org/doc/html/draft-spiegel-ippm-ioam-rawexport > <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fdatatracker.ietf.org%2fdoc%2fhtml%2fdraft-spiegel-ippm-ioam-rawexport&c=E,1,AGhegdwBIgVcn3diXJnlYadHXr_-fEdJbEOrmzeEtcr8gZvfkEak4Cqm6FZoozAk3SLSRTre-2caaktlZFZkfic8MC95H3L3YwYJAEZ9RUhnPCWmKuMYoFaOcMY,&typo=1> > Diff: > https://www.ietf.org/rfcdiff?url2=draft-spiegel-ippm-ioam-rawexport-01 > <https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.ietf.org%2frfcdiff%3furl2%3ddraft-spiegel-ippm-ioam-rawexport-01&c=E,1,yIvtYp0d95tIWppvmYtExQYiB17viuvUMeOarRVq3mLCFumZMdEa5FNSV-PrxHo60Cn5tgBo9J2pEFgXG6iCnsGiyUjEP9OP11rvDxXTERDyuD8X8kKSVpKm&typo=1> > > Abstract: > In-situ Operations, Administration, and Maintenance (IOAM) records > operational and telemetry information in the packet while the packet > traverses a path between two points in the network. This document > discusses how In-situ Operations, Administration, and Maintenance > (IOAM) information can be exported in raw, i.e. uninterpreted, format > from network devices to systems, such as monitoring or analytics > systems using IPFIX. > > > > > 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 > <https://linkprotect.cudasvc.com/url?a=http%3a%2f%2ftools.ietf.org&c=E,1,7SYpdkqDS7_x7bj-GITQVKdtWOkgNZ7ooqRju7NzGi99-CjcYTgrWr7CzMFQdsd3Pzg_NwNF4VHCyTHRMdFPllfvjKaP4QgrxGwCYHHW2xBPyih32YX2kgbp&typo=1> > . > > The IETF Secretariat > > _______________________________________________ > ippm mailing list > ippm@ietf.org > > https://linkprotect.cudasvc.com/url?a=https%3a%2f%2fwww.ietf.org%2fmailman%2flistinfo%2fippm&c=E,1,mKywgKF0-bE_26OpmLt0e76Y9C8HGIUciWfxiIQ2HrD8X3MqWAeLdOyc-fUtYkZ3S_dYN8M6LVbwLmCm9GsHbB4JGuDTOAjQvMvnM200VAbMIvbxVcg,&typo=1 > > > This email message and any attachments are confidential. If you are not > the intended recipient, please immediately reply to the sender and delete > the message from your email system. Thank you. > _______________________________________________ > ippm mailing list > ippm@ietf.org > https://www.ietf.org/mailman/listinfo/ippm > > > _______________________________________________ > ippm mailing list > ippm@ietf.org > https://www.ietf.org/mailman/listinfo/ippm >
- [ippm] Fwd: New Version Notification for draft-sp… Mickey Spiegel
- Re: [ippm] New Version Notification for draft-spi… Andrew Feren
- Re: [ippm] New Version Notification for draft-spi… Andrew Feren
- Re: [ippm] New Version Notification for draft-spi… Mickey Spiegel