Dear Mr. Li, Experts,

as mentioned at the ITU meeting in Geneva there are several open questions concerning the proposal of UCLA.

APC 2018 "Protection Procedure" c) If the protection is actually done with level p-1 why do one has to keep level p somehow ? In opposition to the written text is packet #3 in your figure.

d) Can you please explain the meaning of "packet" in every case it is mentioned within this paragraph ?

Best Wishes Gero Baese

---------------------------------------------------------- Gero Bäse Tel.: +49 89 636 53193 Corporate Research Fax: +49 89 636 52393 Networks and Multimediacommunication ZT IK 2 ----------------------------------------------------------

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