Alissa Cooper has entered the following ballot position for draft-ietf-6lo-deadline-time-04: Discuss
When responding, please keep the subject line intact and reply to all email addresses included in the To and CC lines. (Feel free to cut this introductory paragraph, however.) Please refer to https://www.ietf.org/iesg/statement/discuss-criteria.html for more information about IESG DISCUSS and COMMENT positions. The document, along with other ballot positions, can be found here: https://datatracker.ietf.org/doc/draft-ietf-6lo-deadline-time/ ---------------------------------------------------------------------- DISCUSS: ---------------------------------------------------------------------- The Gen-ART reviewer made the following observation, which I'd like to discuss: There is a serious problem with the last 5 paragraphs of section 8, "Synchronization Aspects": they seem to assume that the time representation for the Deadline Time and Origination Time values will wrap around, that is, that the representation is the absolute value modulo the size of the field. In addition, there is a lack of clarity how the new epoch point will be chosen after the value wraps around. This seems to contradict the earlier sections of the document which speak of the values as if they are always to be considered as absolute values on a time scale selected by the TU field, viz., either the NTP time scale (in seconds) or the network's ASN numbering. It's possible that four of these paragraphs are intended to only apply to the use of TU = 00, the NTP time scale, and perhaps that usage of the header is understood not to be completely specified yet. However, the final paragraph discusses TU = 10 (the ASN time scale), and claims that wrapping of the DT value is intended. This is relevant to current implementations. Some sort of resolution of this is needed; as the document stands it is self-inconsistent. One possible resolution would be to omit these paragraphs. ---------------------------------------------------------------------- COMMENT: ---------------------------------------------------------------------- Please respond to the rest of the Gen-ART review. _______________________________________________ 6lo mailing list [email protected] https://www.ietf.org/mailman/listinfo/6lo
