Re: [IPFIX] [Technical Errata Reported] RFC5655 (4306)
Paul Aitken <paitken@brocade.com> Thu, 19 March 2015 21:01 UTC
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Date: Thu, 19 Mar 2015 21:01:00 +0000
From: Paul Aitken <paitken@brocade.com>
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Subject: Re: [IPFIX] [Technical Errata Reported] RFC5655 (4306)
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[-RFC Editor] I checked the figure and agree with Wayne: the byte should be 0x16 because there's only one padding octet, not three. P. On 19/03/15 18:08, RFC Errata System wrote: > The following errata report has been submitted for RFC5655, > "Specification of the IP Flow Information Export (IPFIX) File Format". > > -------------------------------------- > You may review the report below and at: > http://www.rfc-editor.org/errata_search.php?rfc=5655&eid=4306 > > -------------------------------------- > Type: Technical > Reported by: Wayne Tackabury <wtackabury@us.ibm.com> > > Section: A.5 > > Original Text > ------------- > 224: 0A 47 0A B6 E5 47 0C 07 48 00|01 03 00 18 00 3E > [ message checksum record ^ --> > 240: 2B 37 08 CE B2 0E 30 11 32 12 4A 5F E3 AD DB 00 > > 256:|00 0A 05 10 47 0A B6 E5 00 00 00 06 00 00 00 01 > > > > Corrected Text > -------------- > 224: 0A 47 0A B6 E5 47 0C 07 48 00|01 03 00 16 00 3E > [ message checksum record ^ --> > 240: 2B 37 08 CE B2 0E 30 11 32 12 4A 5F E3 AD DB 00 > > 256:|00 0A 05 10 47 0A B6 E5 00 00 00 06 00 00 00 01 > > > > Notes > ----- > First of all, note that per erratum #2030, the offsets in this whole section are wrong, it should begin (I think) at 192. I shall use the published (incorrect) offset for illuminating this point: > > I believe the byte at #237 should be 0x16 and not 0x18. I suspect this checksum was copy-pasted from a prior instance in the example, where there were three pad bytes added to the data record for #259 (0x103). In this instance, there is only one pad byte at #255, hence the offset here should be two less (22 or 0x16 and not 24 or 0x18): > > 2 bytes set ID > 2 bytes length > 1 byte option data > 16 bytes checksum data > 1 byte pad (at #255) > > ...totalling 22. Thanks! > > Instructions: > ------------- > This erratum is currently posted as "Reported". If necessary, please > use "Reply All" to discuss whether it should be verified or > rejected. When a decision is reached, the verifying party (IESG) > can log in to change the status and edit the report, if necessary. > > -------------------------------------- > RFC5655 (draft-ietf-ipfix-file-05) > -------------------------------------- > Title : Specification of the IP Flow Information Export (IPFIX) File Format > Publication Date : October 2009 > Author(s) : B. Trammell, E. Boschi, L. Mark, T. Zseby, A. Wagner > Category : PROPOSED STANDARD > Source : IP Flow Information Export > Area : Operations and Management > Stream : IETF > Verifying Party : IESG > > _______________________________________________ > IPFIX mailing list > IPFIX@ietf.org > https://www.ietf.org/mailman/listinfo/ipfix
- [IPFIX] [Technical Errata Reported] RFC5655 (4306) RFC Errata System
- [IPFIX] [Errata Verified] RFC5655 (4306) RFC Errata System
- Re: [IPFIX] [Technical Errata Reported] RFC5655 (… Benoit Claise
- Re: [IPFIX] [Technical Errata Reported] RFC5655 (… Paul Aitken