Re: [Technical Errata Reported] RFC6936 (4341)

Magnus Westerlund <magnus.westerlund@ericsson.com> Tue, 21 April 2015 08:45 UTC

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Date: Tue, 21 Apr 2015 10:45:12 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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To: gorry@erg.abdn.ac.uk, Mark ZZZ Smith <markzzzsmith@yahoo.com.au>
Subject: Re: [Technical Errata Reported] RFC6936 (4341)
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I also support approving this Errata.

Cheers

Magnus

gorry@erg.abdn.ac.uk skrev den 2015-04-21 10:09:
> I agree with this update. I think it is a useful correction.
> 
> Gorry
> 
>> I agree with Brian's update, I think stateless LB is better.
>> (Strangely and coincidently, my OpenWRT router reported I received one
>> today:
>> [ Â 422.320000] IPv6: udp checksum is 0
>>
>> )
>>
>>
>> Regards,Mark.
>>       From: joel jaeggli <joelja@bogus.com>
>>  To: RFC Errata System <rfc-editor@rfc-editor.org>; gorry@erg.abdn.ac.uk;
>> magnus.westerlund@ericsson.com; brian@innovationslab.net;
>> terry.manderson@icann.org; bob.hinden@gmail.com; otroan@employees.org
>> Cc: ipv6@ietf.org
>>  Sent: Tuesday, 21 April 2015, 14:46
>>  Subject: Re: [Technical Errata Reported] RFC6936 (4341)
>>
>> anyone care to comment?
>>
>> joel
>>
>>
>>
>> On 4/20/15 9:35 PM, RFC Errata System wrote:
>>> The following errata report has been submitted for RFC6936,
>>> "Applicability Statement for the Use of IPv6 UDP Datagrams with Zero
>>> Checksums".
>>>
>>> --------------------------------------
>>> You may review the report below and at:
>>> http://www.rfc-editor.org/errata_search.php?rfc=6936&eid=4341
>>>
>>> --------------------------------------
>>> Type: Technical
>>> Reported by: Brian Carpenter <brian.e.carpenter@gmail.com>
>>>
>>> Section: 1.3.5
>>>
>>> Original Text
>>> -------------
>>> The ingress of a tunnel seeking to provide good
>>> entropy in the flow label field would therefore need to create a
>>> random flow label value and keep corresponding state so that all
>>> packets that were associated with a flow would be consistently given
>>> the same flow label.  Although possible, this complexity may not be
>>> desirable in a tunnel ingress.
>>>
>>> Corrected Text
>>> --------------
>>> The ingress of a tunnel seeking to provide good
>>> entropy in the flow label field would therefore need to create a
>>> pseudo-random flow label value using a stateless method
>>> as described in [RFC6438] so that all
>>> packets that were associated with a flow would be consistently given
>>> the same flow label.
>>>
>>> Notes
>>> -----
>>> It is incorrect that a stateful method is needed, and presumably that
>>> was the complexity judged undesirable. Also, we shouldn't say "random"
>>> when we mean "pseudo-random."
>>>
>>> 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.
>>>
>>> --------------------------------------
>>> RFC6936 (draft-ietf-6man-udpzero-12)
>>> --------------------------------------
>>> Title              : Applicability Statement for the Use of IPv6
>>> UDP Datagrams with Zero Checksums
>>> Publication Date    : April 2013
>>> Author(s)Â  Â  Â  Â  Â  : G. Fairhurst, M. Westerlund
>>> Category            : PROPOSED STANDARD
>>> Source              : IPv6 Maintenance
>>> Area                : Internet
>>> Stream              : IETF
>>> Verifying Party    : IESG
>>>
>>> --------------------------------------------------------------------
>>> IETF IPv6 working group mailing list
>>> ipv6@ietf.org
>>> Administrative Requests: https://www.ietf.org/mailman/listinfo/ipv6
>>> --------------------------------------------------------------------
>>>
>>
>>
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>>
>>
> 
> 
> 


-- 

Magnus Westerlund

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