Re: I-D Action: draft-ietf-6man-icmp-limits-05.txt

Ole Troan <otroan@employees.org> Mon, 23 September 2019 09:24 UTC

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From: Ole Troan <otroan@employees.org>
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Subject: Re: I-D Action: draft-ietf-6man-icmp-limits-05.txt
Date: Mon, 23 Sep 2019 11:24:14 +0200
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Hi Tom,

The new draft looks good.
I read through the whole document again, and I ended up finding myself unclear of a couple of points:

- when is the destination unreachable "ICMPv6 error for aggregate header limits" used versus e.g. the "parameter problem, extenshion header chain too long"?
- what is the logic that determines when a parameter problem type versus a destination unreachable type is used?

Best regards,
Ole



> On 10 Sep 2019, at 19:39, internet-drafts@ietf.org wrote:
> 
> 
> 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           : ICMPv6 errors for discarding packets due to processing limits
>        Author          : Tom Herbert
> 	Filename        : draft-ietf-6man-icmp-limits-05.txt
> 	Pages           : 15
> 	Date            : 2019-09-10
> 
> Abstract:
>   Network nodes may discard packets if they are unable to process
>   protocol headers of packets due to processing constraints or limits.
>   When such packets are dropped, the sender receives no indication so
>   it cannot take action to address the cause of discarded packets. This
>   specification defines several new ICMPv6 errors that can be sent by a
>   node that discards packets because it is unable to process the
>   protocol headers. A node that receives such an ICMPv6 error may be
>   able to modify what it sends in future packets to avoid subsequent
>   packet discards.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-6man-icmp-limits/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-6man-icmp-limits-05
> https://datatracker.ietf.org/doc/html/draft-ietf-6man-icmp-limits-05
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-6man-icmp-limits-05
> 
> 
> 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.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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