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</o:shapelayout></xml><![endif]--></head><body lang=DE link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>HI all,<o:p></o:p></span></p><p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Just out of my head I remember that weh ad the same issue in our mesh. We run about 80 wireless adhoc nodes with olsr and we use 5GHz<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>backbone links to connect some of those nodes on their wan port.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>While I saw the same duplicated packets, It turned out to be an issue with the p2p backbone links. We are using ubiquity hardware and their implementation<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>of the client-bridged mode is incorrect and was the key which caused that duplicated olsr packets on our side.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>After changing the p2p backbone links from AP<->Client-bridge mode to AP(WDS) <-> AP(WDS) there was no duplicated packet anymore.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>It seems that in client-bridge mode the multicast packets from olsr got duplicated per backbone links … so it was after 2links time 4 and so one ….<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Maybe you have a similar setup !?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'>Bye Bluse<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D'><o:p> </o:p></span></p><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>Von:</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> olsr-users-bounces@lists.olsr.org [mailto:olsr-users-bounces@lists.olsr.org] <b>Im Auftrag von </b>Gioacchino Mazzurco<br><b>Gesendet:</b> Freitag, 8. Oktober 2010 14:44<br><b>An:</b> Markus Kittenberger<br><b>Cc:</b> wireless@ml.ninux.org; olsr-dev@lists.olsr.org; olsr-users@lists.olsr.org<br><b>Betreff:</b> Re: [Olsr-users] [Olsr-dev] Strange debug message from olsrd<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal style='margin-bottom:12.0pt'>mmm it seems we are not using buggy driver because our node are ubiquity picostation with madwifi, moreover we have the same message from eth0 ( wired interface ) ... and not seems we have loop in every node... and now mdns is disabled and we continue to have the same message... here is the realtime topology:<br><a href="http://131.114.250.100/status.php">http://131.114.250.100/status.php</a><br><a href="http://131.114.250.100:2006/">http://131.114.250.100:2006/</a><br><br><o:p></o:p></p><div><p class=MsoNormal>2010/10/8 Markus Kittenberger <<a href="mailto:Markus.Kittenberger@gmx.at">Markus.Kittenberger@gmx.at</a>><o:p></o:p></p><p class=MsoNormal>this is a warning that olsrd received the exactly same packet from one of its neighbor more than once,..<br>infact olsrd received a packet with an seqnr which is identical to the previous packet,..<o:p></o:p></p><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>known cause for example is the buggy wireless driver of routeros (if u use for example use wds links (with bad signal) between mikrotik routerboards you will get duplicate packets seldomly)<o:p></o:p></p></div><div><p class=MsoNormal>or maybe you built a layer 2 loop, or found another buggy hardware/device driver,..<o:p></o:p></p></div><div><p class=MsoNormal>mdns might also produce duplicates<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>btw: olsrd versoins that report this, are not affected by duplicate olsr packets (they ignore the duplicate), but older olsrd versions interprete a duplicate packet as extreme packet loss (65535 packets lost *G) and will set the links lq to 0,... <o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal>as you get many erros of this type, i recommend to find out what causes it, as other software may also react bad on duplicates<o:p></o:p></p></div><div><p class=MsoNormal><o:p> </o:p></p></div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Markus<o:p></o:p></p><div><div><div><p class=MsoNormal>On Fri, Oct 8, 2010 at 10:46 AM, Gioacchino Mazzurco <<a href="mailto:gmazzurco89@gmail.com" target="_blank">gmazzurco89@gmail.com</a>> wrote:<o:p></o:p></p></div></div><blockquote style='border:none;border-left:solid #CCCCCC 1.0pt;padding:0cm 0cm 0cm 6.0pt;margin-left:4.8pt;margin-right:0cm'><div><div><p class=MsoNormal style='margin-bottom:12.0pt'>Hey all on our network in Pisa we are using olsrd from stable branch, today reading the output of logread command i have found a lot of olsrd related message here is a short piece:<br><br>Jan 2 16:31:20 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32869 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (80 Bytes)<br>Jan 2 16:31:21 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54141 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (80 Bytes)<br>Jan 2 16:31:21 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10366 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (56 Bytes)<br>Jan 2 16:31:21 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57171 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (56 Bytes)<br>Jan 2 16:31:22 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32870 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (80 Bytes)<br>Jan 2 16:31:23 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54142 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (148 Bytes)<br>Jan 2 16:31:23 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10367 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (160 Bytes)<br>Jan 2 16:31:23 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57172 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (216 Bytes)<br>Jan 2 16:31:24 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32871 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (188 Bytes)<br>Jan 2 16:31:24 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54143 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (80 Bytes)<br>Jan 2 16:31:25 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57173 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (56 Bytes)<br>Jan 2 16:31:25 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10368 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (112 Bytes)<br>Jan 2 16:31:25 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32872 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (80 Bytes)<br>Jan 2 16:31:26 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54144 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (80 Bytes)<br>Jan 2 16:31:26 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57174 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (56 Bytes)<br>Jan 2 16:31:27 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10369 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (104 Bytes)<br>Jan 2 16:31:27 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32873 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (188 Bytes)<br>Jan 2 16:31:28 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54145 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (148 Bytes)<br>Jan 2 16:31:28 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57175 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (216 Bytes)<br>Jan 2 16:31:29 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10370 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (168 Bytes)<br>Jan 2 16:31:29 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32874 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (80 Bytes)<br>Jan 2 16:31:30 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54146 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (80 Bytes)<br>Jan 2 16:31:30 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57176 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (56 Bytes)<br>Jan 2 16:31:30 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32875 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (80 Bytes)<br>Jan 2 16:31:30 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10371 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (104 Bytes)<br>Jan 2 16:31:31 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 54147 from fd7d:d7bb:2c97:dec3:0:15:f2dc:faa6 on eth0 (148 Bytes)<br>Jan 2 16:31:32 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 57177 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (160 Bytes)<br>Jan 2 16:31:32 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 32876 from fd7d:d7bb:2c97:dec3:0:23:7d29:13fa on eth0 (188 Bytes)<br>Jan 2 16:31:32 OpenWrt <a href="http://daemon.info" target="_blank">daemon.info</a> olsrd[705]: detected duplicate packet with seqnr 10372 from fd7d:d7bb:2c97:dec3:0:15:6dfc:71ce on ath1 (168 Bytes)<br><br>here is our topology <a href="http://131.114.250.100/status.php" target="_blank">http://131.114.250.100/status.php</a><br>the node is fd7d:d7bb:2c97:dec3:0:15:6dfc:720b<br><br>but i find the same message on all node of network...<br>here is our typical configuration<br><br><br>DebugLevel 1<br><br>IpVersion 6<br><br>LoadPlugin "olsrd_txtinfo.so.0.1"<br>{<br> PlParam "Accept" "0::0"<br>}<br><br>LoadPlugin "olsrd_mdns.so.1.0.0"<br>{<br> PlParam "MDNS_TTL" "10"<br><br> PlParam "NonOlsrIf" "ath0"<br> PlParam "NonOlsrIf" "eth0"<br>}<br><br>Hna6<br>{<br> 0::ffff:0000:0000 96<br> 0::ffff:0afe:0000 112<br> 0::ffff:0aaf:0000 120<br>}<br><br>Interface "ath1"<br>{<br> Mode "mesh"<br> IPv6Multicast FF0E::1<br> IPv6Src fd7d:d7bb:2c97:dec3:0000:0015:6DFC:720B<br>}<br><br><br>Interface "eth0"<br>{<br> Mode "ether"<br> IPv6Multicast FF0E::1<br> IPv6Src fd7d:d7bb:2c97:dec3:0000:0015:6DFD:720B<br>}<br><br><br>debug level is set to 1 but forced to 0 by -d param on our custom olsrd starting script<br><br><o:p></o:p></p></div></div><p class=MsoNormal>--<br>Olsr-dev mailing list<br><a href="mailto:Olsr-dev@lists.olsr.org" target="_blank">Olsr-dev@lists.olsr.org</a><br><a href="http://lists.olsr.org/mailman/listinfo/olsr-dev" target="_blank">http://lists.olsr.org/mailman/listinfo/olsr-dev</a><o:p></o:p></p></blockquote></div><p class=MsoNormal><o:p> </o:p></p></div></div><p class=MsoNormal><o:p> </o:p></p></div></body></html>