Bug #355
Updated by Sven Eckelmann over 6 years ago
"Bug report is actually":https://lists.open-mesh.org/pipermail/b.a.t.m.a.n/2018-May/017758.html from Leonardo Mörlein <me@irrelefant.net>: > We have three nodes, which have the following topology: > > NDS-Agenda21Haus70 <-> sn04 <-> sn03 > > Something happened, so they came into a stable (for hours) but inconsistent > state of their translation tables: > > - sn03 has 11 entries in its translocal table and crc = 0x2b6d458c > - sn04 has only 10 entries in the table for sn03 but still crc = 0x2b6d458c > - NDS-Agenda21Haus70 has also 10 entries in the table for sn03 but crc = 0x74fb4f96 > > It seems as like something (erroneously) removed the entry 33:33:00:00:00:01 > from table on node sn04 without recalculating the crc sum. > > In the following are the outputs of the table states: > > <pre>root@NDS-Agenda21Haus70:~# root@NDS-Agenda21Haus70:~# batctl tr 88:e6:40:20:30:01 > traceroute to 88:e6:40:20:30:01 (88:e6:40:20:30:01), 50 hops max, 20 byte packets > 1: 88:e6:40:20:40:01 16.567 ms 20.593 ms 16.324 ms > 2: 88:e6:40:20:30:01 20.760 ms 19.826 ms 19.840 ms > > root@NDS-Agenda21Haus70:~# batctl tg | grep 88:e6:40:20:30:01 > * 33:33:ff:06:3e:25 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > * 33:33:ff:00:18:32 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > 33:33:00:00:00:02 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > 01:00:5e:00:00:fc -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > 01:00:5e:00:00:01 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > 33:33:ff:00:00:00 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > * 33:33:ff:00:30:01 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > * 2a:d7:9a:06:3e:25 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > * 33:33:ff:00:01:08 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > 33:33:00:01:00:03 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x74fb4f96) > > [root@sn04]:~ # batctl tg | grep 88:e6:40:20:30:01 > * 33:33:ff:06:3e:25 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > * 33:33:ff:00:18:32 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > 33:33:00:00:00:02 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > 01:00:5e:00:00:fc -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > 01:00:5e:00:00:01 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > 33:33:ff:00:00:00 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > * 33:33:ff:00:30:01 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > * 2a:d7:9a:06:3e:25 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > * 33:33:ff:00:01:08 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > 33:33:00:01:00:03 -1 [....] ( 3) 88:e6:40:20:30:01 ( 3) (0x2b6d458c) > > [root@sn03]:~ # batctl tl > [B.A.T.M.A.N. adv 2018.0-3-g4b2b8c68, MainIF/MAC: mesh_fastd/88:e6:40:20:30:01 (bat0/2a:d7:9a:06:3e:25 BATMAN_IV), TTVN: 3] > Client VID Flags Last seen (CRC ) > 33:33:ff:06:3e:25 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:ff:00:18:32 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:00:00:00:02 -1 [.P....] 0.000 (0x2b6d458c) > 01:00:5e:00:00:fc -1 [.P....] 0.000 (0x2b6d458c) > 01:00:5e:00:00:01 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:ff:00:00:00 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:ff:00:30:01 -1 [.P....] 0.000 (0x2b6d458c) > 2a:d7:9a:06:3e:25 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:ff:00:01:08 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:00:01:00:03 -1 [.P....] 0.000 (0x2b6d458c) > 33:33:00:00:00:01 -1 [.P....] 0.000 (0x2b6d458c)</pre> (0x2b6d458c) > > In the attachment, I added a capture of the received full table response from > sn04 -> NDS-Agenda21Haus70 taken on NDS-Agenda21Haus70. I checked, that this > is really an intermediate response of sn04 and not a direct response from sn03 > (sn03 is not receiving queries from NDS-Agenda21Haus70).