Re: [core] Benjamin Kaduk's Discuss on draft-ietf-core-stateless-06: (with DISCUSS and COMMENT)

Klaus Hartke <klaus.hartke@ericsson.com> Wed, 22 April 2020 15:10 UTC

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From: Klaus Hartke <klaus.hartke@ericsson.com>
To: Benjamin Kaduk <kaduk@mit.edu>
CC: The IESG <iesg@ietf.org>, "draft-ietf-core-stateless@ietf.org" <draft-ietf-core-stateless@ietf.org>, "core-chairs@ietf.org" <core-chairs@ietf.org>, "core@ietf.org" <core@ietf.org>, Carsten Bormann <cabo@tzi.org>
Thread-Topic: Benjamin Kaduk's Discuss on draft-ietf-core-stateless-06: (with DISCUSS and COMMENT)
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Date: Wed, 22 Apr 2020 15:10:18 +0000
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Subject: Re: [core] Benjamin Kaduk's Discuss on draft-ietf-core-stateless-06: (with DISCUSS and COMMENT)
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Benjamin Kaduk wrote:
> > One question: Where did you see that "Len (extended)" is 0-4 bytes
> instead of 0-2 bytes as shown in the appendix?
>
> [...]
>
>    Length (Len):  4-bit unsigned integer.  A value between 0 and 12
>       inclusive indicates the length of the message in bytes, starting
>       with the first bit of the Options field.  Three values are
>       reserved for special constructs:
>
>       13:  An 8-bit unsigned integer (Extended Length) follows the
>          initial byte and indicates the length of options/payload
>          minus 13.
>
>       14:  A 16-bit unsigned integer (Extended Length) in network byte
>          order follows the initial byte and indicates the length of
>          options/payload minus 269.
>
>       15:  A 32-bit unsigned integer (Extended Length) in network byte
>          order follows the initial byte and indicates the length of
>          options/payload minus 65805.
>
>
> A "32-bit unsigned integer" would be 4 bytes, would it not?

You're absolutely right. Fixed!

Klaus