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Large network probing issue #2882

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Guilty13 opened this issue Apr 12, 2024 · 0 comments
Open

Large network probing issue #2882

Guilty13 opened this issue Apr 12, 2024 · 0 comments

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@Guilty13
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I have comparably big rpl-classic network (100 nodes). My devices are modified cc1310 controllers.

Sometimes network starts changing its routes frenquently, and it causes link problems.

I discovered something interesting:
Log of one device showed, that it probed parent candidate, selected it as new parent, but after 10 seconds parent rank got increased by 200, so parent now is not preferred, and node starts searching new parent, causing more traffic. Seems like when traffic rises, nodes don't keep up their "true" rank, and advertise their old rank, causing children switch to them (and switch back after updating rank).

Here I have some logs and configurations:

9.04.24 00:00:29 [INFO: RPL       ] Preferred DAG fd00::****:****:****:8f5, rank 576, min_rank 410, parent rank 713, link metric 277
09.04.24 00:00:29 [DBG : RPL       ] Preferred parent update, rank changed from 576 to 990
09.04.24 00:00:29 [DBG : RPL       ] Scheduling DAO timer 276 ticks in the future
09.04.24 00:00:29 [DBG : RPL       ] Scheduling DAO lifetime timer 2367143 ticks in the future
09.04.24 00:00:30 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:31 [INFO: RPL       ] handle_dao_timer - sending DAO
09.04.24 00:00:31 [INFO: RPL       ] Sending a DAO with sequence number 84, lifetime 10, prefix fd00:::****:****:****:7290 to fe80::****:****:****:79fb , parent fe80::****:****:****:79fb
09.04.24 00:00:32 [INFO: RPL       ] Received a DIO from fe80::****:****:****:852
09.04.24 00:00:32 [DBG : RPL       ] Incoming DIO (id, ver, rank) = (30,240,394)
09.04.24 00:00:32 [DBG : RPL       ] Incoming DIO (dag_id, pref) = (fd00::****:****:****:8f5, 0)
09.04.24 00:00:32 [DBG : RPL       ] Incoming DIO (option, length) = (4, 16)
09.04.24 00:00:32 [INFO: RPL       ] DAG conf:dbl=4, min=12 red=10 maxinc=896 mininc=128 ocp=1 d_l=10 l_u=3600
09.04.24 00:00:32 [DBG : RPL       ] Incoming DIO (option, length) = (8, 32)
09.04.24 00:00:32 [INFO: RPL       ] Copying prefix information
09.04.24 00:00:32 [DBG : RPL       ] Prefix announced in DIO
09.04.24 00:00:32 [INFO: RPL       ] Prefix set - will announce this in DIOs
09.04.24 00:00:32 [INFO: RPL       ] rpl_set_prefix - prefix NON-NULL
09.04.24 00:00:32 [DBG : RPL       ] Set DAG fd00::****:****:****:8f5 lifetime to 196
09.04.24 00:00:32 [INFO: RPL       ] Preferred DAG fd00::****:****:****:8f5, rank 990, min_rank 410, parent rank 394, link metric 940
09.04.24 00:00:32 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:32 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:32 [INFO: RPL       ] probing 234 (urgent) last tx 183 min ago
09.04.24 00:00:32 [DBG : RPL       ] Sending prefix info in DIO for fd00::
09.04.24 00:00:32 [INFO: RPL       ] Sending unicast-DIO with rank 990 to fe80::****:****:****:6ea
09.04.24 00:00:32 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 990 dioint 16, nbr count 58
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 1d   261,  1120 =>  1381 --  0    (last tx 3681 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 934 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr ea   400,   370 =>   770 --  0    (last tx 183 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4047 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:32 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4047 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1717 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 934 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr fb   713,   313 =>  1026 -- 16 fp (last tx 0 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 553 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: nbr f4   542,   256 =>   798 --  0    (last tx 4888 min ago)
09.04.24 00:00:33 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:33 [INFO: RPL       ] Received a DIO from fe80::****:****:****::81d
09.04.24 00:00:33 [DBG : RPL       ] Incoming DIO (id, ver, rank) = (30,240,273)
09.04.24 00:00:33 [DBG : RPL       ] Incoming DIO (dag_id, pref) = (fd00:****:****:****:8f5, 0)
09.04.24 00:00:33 [DBG : RPL       ] Incoming DIO (option, length) = (4, 16)
09.04.24 00:00:33 [INFO: RPL       ] DAG conf:dbl=4, min=12 red=10 maxinc=896 mininc=128 ocp=1 d_l=10 l_u=3600
09.04.24 00:00:33 [DBG : RPL       ] Incoming DIO (option, length) = (8, 32)
09.04.24 00:00:33 [INFO: RPL       ] Copying prefix information
09.04.24 00:00:33 [DBG : RPL       ] Prefix announced in DIO
09.04.24 00:00:33 [INFO: RPL       ] Prefix set - will announce this in DIOs
09.04.24 00:00:33 [INFO: RPL       ] rpl_set_prefix - prefix NON-NULL
09.04.24 00:00:33 [DBG : RPL       ] Set DAG fd00::****:****:****::8f5 lifetime to 196
09.04.24 00:00:33 [INFO: RPL       ] Preferred DAG fd00::****:****:****:8f5, rank 990, min_rank 410, parent rank 273, link metric 1120
09.04.24 00:00:33 [DBG : RPL       ] Preferred parent update, rank changed from 990 to 1026
09.04.24 00:00:33 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:33 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:33 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:34 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:34 [INFO: RPL       ] probing 234 (urgent) last tx 0 min ago
09.04.24 00:00:34 [DBG : RPL       ] Sending prefix info in DIO for fd00::
09.04.24 00:00:34 [INFO: RPL       ] Sending unicast-DIO with rank 1026 to fe80::****:****:****:6ea
09.04.24 00:00:34 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 1026 dioint 16, nbr count 58
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 1d   273,  1120 =>  1393 --  0    (last tx 3682 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 934 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:34 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr ea   400,   309 =>   709 --  1    (last tx 0 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4047 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4047 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1717 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr fb   713,   313 =>  1026 -- 16 fp (last tx 0 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 553 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: nbr f4   542,   256 =>   798 --  0    (last tx 4889 min ago)
09.04.24 00:00:35 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:36 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:37 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:37 [INFO: RPL       ] rpl_set_preferred_parent fe80::****:****:****:6ea used to be fe80::****:****:****:79fb
09.04.24 00:00:37 [DBG : RPL       ] Removing default route through fe80::****:****:****:79fb
09.04.24 00:00:37 [DBG : RPL       ] Adding default route through fe80::****:****:****:6ea
09.04.24 00:00:37 [INFO: RPL       ] Changed preferred parent, rank changed from 1026 to 780
09.04.24 00:00:37 [INFO: RPL       ] Sending a No-Path DAO with sequence number 85, lifetime 0, prefix fd00::****:****:****:7290 to fe80::****:****:****:79fb , parent fe80::****:****:****:79fb
09.04.24 00:00:37 [DBG : RPL       ] Scheduling DAO timer 333 ticks in the future
09.04.24 00:00:37 [DBG : RPL       ] Scheduling DAO lifetime timer 2340539 ticks in the future
09.04.24 00:00:37 [INFO: RPL       ] Scheduling DIO timer 264 ticks in future (Interval)
09.04.24 00:00:37 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 780 dioint 12, nbr count 58
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 1d   273,  1120 =>  1393 --  0    (last tx 3682 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 934 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr ea   400,   380 =>   780 --  9 fp (last tx 0 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4048 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4047 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1718 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:37 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 935 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr fb   713,   313 =>  1026 -- 16 f  (last tx 0 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 553 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: nbr f4   542,   256 =>   798 --  0    (last tx 4889 min ago)
09.04.24 00:00:38 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:38 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:38 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:39 [DBG : RPL       ] DIO Timer triggered
09.04.24 00:00:39 [DBG : RPL       ] Sending prefix info in DIO for fd00::
09.04.24 00:00:39 [INFO: RPL       ] Sending a multicast-DIO with rank 780
09.04.24 00:00:39 [DBG : RPL       ] Scheduling DIO timer 260 ticks in future (sent)
09.04.24 00:00:39 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 780 dioint 12, nbr count 58
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 1d   273,  1120 =>  1393 --  0    (last tx 3682 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 935 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:39 [DBG : RPL       ] RPL: nbr ea   400,   380 =>   780 --  9 fp (last tx 0 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1718 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr fb   713,   537 =>  1250 -- 16 f  (last tx 0 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 553 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f4   542,   256 =>   798 --  0    (last tx 4889 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:40 [INFO: RPL       ] probing 244  last tx 4889 min ago
09.04.24 00:00:40 [DBG : RPL       ] Sending prefix info in DIO for fd00::
09.04.24 00:00:40 [INFO: RPL       ] Sending unicast-DIO with rank 780 to fe80::****:****:****:7af4
09.04.24 00:00:40 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 780 dioint 12, nbr count 58
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 1d   273,  1120 =>  1393 --  0    (last tx 3682 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ea   400,   380 =>   780 --  9 fp (last tx 0 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1718 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr fb   713,   537 =>  1250 -- 16 f  (last tx 0 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 553 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: nbr f4   542,   256 =>   798 --  0    (last tx 4889 min ago)
09.04.24 00:00:40 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:40 [INFO: RPL       ] handle_dao_timer - sending DAO
09.04.24 00:00:40 [INFO: RPL       ] Sending a DAO with sequence number 86, lifetime 10, prefix fd00:****:****:****:7290 to fe80::****:****:****:6ea , parent fe80::****:****:****:6ea
09.04.24 00:00:41 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:41 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:42 [DBG : RPL       ] DIO Timer triggered
09.04.24 00:00:42 [DBG : RPL       ] DIO Timer interval doubled 13
09.04.24 00:00:42 [INFO: RPL       ] Scheduling DIO timer 665 ticks in future (Interval)
09.04.24 00:00:42 [DBG : RPL       ] RPL: MOP 2 OCP 1 rank 780 dioint 13, nbr count 58
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 4d   305,   956 =>  1261 --  0    (last tx 3837 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 7b   405,   716 =>  1121 --  0    (last tx 3374 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 52   394,   940 =>  1334 --  0    (last tx 4047 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 1d   273,  1120 =>  1393 --  0    (last tx 3682 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr bf   285,  1075 =>  1360 --  0    (last tx 3065 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 8b   605,   708 =>  1313 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 96   418,   534 =>   952 --  0    (last tx 2790 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 81   391,   730 =>  1121 --  0    (last tx 1870 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr a3   279,   988 =>  1267 --  0    (last tx 2790 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr ea   400,   380 =>   780 --  9 fp (last tx 0 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr db   428,   710 =>  1138 --  0    (last tx 2907 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 5b   390,   654 =>  1044 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr e8   284,   769 =>  1053 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr d7   267,   782 =>  1049 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f5   535,   680 =>  1215 --  0    (last tx 1255 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cd   408,   703 =>  1111 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 93   259,   512 =>   771 --  0    (last tx 4716 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr e2   431,   883 =>  1314 --  0    (last tx 4714 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 2a   419,   734 =>  1153 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr d3   416,   493 =>   909 --  0    (last tx 4716 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr b5   256,   730 =>   986 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 84   287,   759 =>  1046 --  0    (last tx 1718 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 8b   391,   697 =>  1088 --  0    (last tx 4714 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 97   391,   718 =>  1109 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cd   384,   530 =>   914 --  0    (last tx 1560 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr ae   515,   486 =>  1001 --  0    (last tx 4466 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 1a   292,   839 =>  1131 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 3b   270,   693 =>   963 --  0    (last tx 4465 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 43   464,   693 =>  1157 --  0    (last tx 1407 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr db   466,   885 =>  1351 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 63   273,   693 =>   966 --  0    (last tx 946 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f3   268,   922 =>  1190 --  0    (last tx 2790 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f5   128,   869 =>   997 --  0    (last tx 4726 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr b4   412,   693 =>  1105 --  0    (last tx 4289 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr c4   454,   693 =>  1147 --  0    (last tx 3219 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr b1   403,   693 =>  1096 --  0    (last tx 4047 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr e5   486,   562 =>  1048 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cc   404,   697 =>  1101 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f8   426,   693 =>  1119 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cf   272,   699 =>   971 --  0    (last tx 4048 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr a4   268,  1126 =>  1394 --  0    (last tx 934 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr bc   281,  1215 =>  1496 --  0    (last tx 2790 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 94   428,   520 =>   948 --  0    (last tx 4047 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cb   394,   710 =>  1104 --  0    (last tx 4466 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 84   415,   486 =>   901 --  0    (last tx 3889 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 4a   387,   512 =>   899 --  0    (last tx 4457 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cb   551,   926 =>  1477 --  0    (last tx 4047 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 1a   397,   693 =>  1090 --  0    (last tx 935 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr ec   256,   843 =>  1099 --  0    (last tx 183 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr fb   713,   537 =>  1250 -- 16 f  (last tx 0 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr ed   285,   558 =>   843 --  0    (last tx 398 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr cf   271,   512 =>   783 --  0    (last tx 784 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr dd   389,   524 =>   913 --  0    (last tx 554 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 91   384,   860 =>  1244 --  0    (last tx 185 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f5   455,   886 =>  1341 --  0    (last tx 185 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr c4   459,   667 =>  1126 --  0    (last tx 185 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr 43   565,   490 =>  1055 --  2    (last tx 30 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: nbr f4   542,   486 =>  1028 --  8 f  (last tx 0 min ago)
09.04.24 00:00:42 [DBG : RPL       ] RPL: end of list
09.04.24 00:00:43 [DBG : RPL       ] rpl_link_callback triggering update
09.04.24 00:00:43 [DBG : RPL       ] rpl_process_parent_event recalculate_ranks
09.04.24 00:00:43 [DBG : RPL       ] Preferred parent update, rank changed from 780 to 998

Some config contents (I can share more configs if needed):

/* Addresses, Sizes and Interfaces */
#define LINKADDR_CONF_SIZE                   8
#define UIP_CONF_LL_802154                   1
#define UIP_CONF_LLH_LEN                     0

/* The size of the uIP main buffer */
#ifndef UIP_CONF_BUFFER_SIZE
#define UIP_CONF_BUFFER_SIZE              1000
#endif

/* ND and Routing */
#ifndef UIP_CONF_ROUTER
#define UIP_CONF_ROUTER                      1
#endif

#define UIP_CONF_ND6_SEND_RA                 0
#define UIP_CONF_IP_FORWARD                  0
#define RPL_CONF_STATS                       1

#define UIP_CONF_ND6_REACHABLE_TIME     600000
#define UIP_CONF_ND6_RETRANS_TIMER       10000

#ifndef NBR_TABLE_CONF_MAX_NEIGHBORS
#define NBR_TABLE_CONF_MAX_NEIGHBORS        110
#endif
#ifndef UIP_CONF_MAX_ROUTES
#define UIP_CONF_MAX_ROUTES                 110
#endif

#ifndef UIP_CONF_TCP
#define UIP_CONF_TCP                         1
#endif
#ifndef UIP_CONF_TCP_MSS
#define UIP_CONF_TCP_MSS                    64
#endif

#define UIP_CONF_UDP                         1
#define UIP_CONF_UDP_CHECKSUMS               1
#define UIP_CONF_ICMP6                       1

#define SICSLOWPAN_CONF_COMPRESS_EXT_HDR        0

Worth mentioning that this network have about half devices, using old contiki (about 2017 year release) due to some updating issues, so maybe this "bug" was fixed and caused by outdated firmware.
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@Guilty13