%% You should probably cite draft-thubert-6lo-fragment-recovery instead of this I-D. @techreport{thubert-6lo-forwarding-fragments-02, number = {draft-thubert-6lo-forwarding-fragments-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-thubert-6lo-forwarding-fragments/02/}, author = {Pascal Thubert and Jonathan Hui}, title = {{LLN Fragment Forwarding and Recovery}}, pagetotal = 16, year = 2014, month = nov, day = 25, abstract = {In order to be routed, a fragmented packet must be reassembled at every hop of a multihop link where lower layer fragmentation occurs. Considering that the IPv6 minimum MTU is 1280 bytes and that an an 802.15.4 frame can have a payload limited to 74 bytes in the worst case, a packet might end up fragmented into as many as 18 fragments at the 6LoWPAN shim layer. If a single one of those fragments is lost in transmission, all fragments must be resent, further contributing to the congestion that might have caused the initial packet loss. This draft introduces a simple protocol to forward and recover individual fragments that might be lost over multiple hops between 6LoWPAN endpoints.}, }