reading draft-thubert-6lowpan-simple-fragment-recovery-05 and came up with a question.

Section 4 indicates that "The recovery mechanism must support highly fragmented packets, with a maximum of 32 fragments per packet." I agree that 32 128 byte fragments is a lot of fragments, but I'm concerned: there is discussion of allowing 9K packets. What happens when a 9K packet goes to a sensor? since 9K/128 is on the order of 70, you are going to have to reply "packet too big". If that is acceptable, why not limit this to 16 fragments, 128*16 being greater that 1500 bytes?

Where did "32" come from?


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