[IPsec] [Editorial Errata Reported] RFC7296 (6940)

[RFC Errata System <[e-mail]>]

The following errata report has been submitted for RFC7296,
"Internet Key Exchange Protocol Version 2 (IKEv2)".

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You may review the report below and at:
https://www.rfc-editor.org/errata/eid6940

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Type: Editorial
Reported by: warren.wang <[e-mail]>

Section: 3.10

Original Text
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o SPI Size (1 octet) - Length in octets of the SPI as defined by the
 IPsec protocol ID or zero if no SPI is applicable. For a
 notification concerning the IKE SA, the SPI Size MUST be zero and
 the field must be empty.


Corrected Text
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o SPI Size (1 octet) - Length in octets of the SPI as defined by the
 IPsec protocol ID or zero if no SPI is applicable. For a
 notification concerning the IKE SA, the SPI Size MUST be zero and
 the SPI field must be empty.


Notes
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the field must be empty -> the SPI field must be empty

so for a notification concerning the IKE SA, the Protocol ID field still shall be zero?(According to the last sentence of Protocol ID section:"If the SPI field is empty, this field MUST be sent as zero and MUST be ignored on receipt".)

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RFC7296 (draft-kivinen-ipsecme-ikev2-rfc5996bis-04)
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Title               : Internet Key Exchange Protocol Version 2 (IKEv2)
Publication Date    : October 2014
Author(s)           : C. Kaufman, P. Hoffman, Y. Nir, P. Eronen, T. Kivinen
Category            : INTERNET STANDARD
Source              : IP Security Maintenance and Extensions
Area                : Security
Stream              : IETF
Verifying Party     : IESG