[6lo] draft-ietf-6lo-fragment-recovery: Send a FULL bitmap when datagram is complete?

Martine Lenders <m.lenders@fu-berlin.de> Tue, 01 October 2019 14:31 UTC

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From: Martine Lenders <m.lenders@fu-berlin.de>
Date: Tue, 1 Oct 2019 16:31:05 +0200
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Subject: [6lo] draft-ietf-6lo-fragment-recovery: Send a FULL bitmap when datagram is complete?
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Hi,

draft-ietf-6lo-fragment-recovery states in section 6.3

[the] might need to abort the process of a fragmented packet for internal
> reasons, for instance if it […] considers that this packet is already fully
> reassembled and passed to the upper layer. In that case, the receiver
> SHOULD indicate so to the sender with a NULL bitmap in a RFRAG
> Acknowledgment.


The given example seems to me the perfect instance to set a FULL bitmap
instead. There is no other instance were a FULL bitmap is specified to be
sent, except for the case that the datagram incidentally fills out the
whole value space of the sequence number field.

Or am I missing something?

Kind regards,
Martine