Usually this is the case with NOX (and AFAICT, only nox) when you have two switches with the same DPID. Nox has a rule that says "if I see two openflow connections with the same DPID, kill the older connection (assuming that it's stale)". The problem is if there is a network misconfiguration and two switches have the same DPID, this cycle continues endlessly:
switch 1 connects, switch 2 connects, disconnecting switch 1 switch 1 reconnects, disconnecting switch 2 Fwiw, this might also be the source of your FV memory leak (separate thread, fwiw). - Rob . On Thu, Jul 14, 2011 at 1:33 PM, Aaron Rosen <[email protected]> wrote: > Hello > > I was wondering if anyone had an ideas why this one switch seems to > be flapping on its connection. This switch is on our local network so > the connection shouldn't really be getting disconnected. The switch is > an HP procure and points at our FV here (running v0.8.0) . When I > use this same HP switch on a different VLAN without FV I don't seem to > get this flapping behavior ( using the same network for control > traffic which is nonOF). > > > This flapping starts at 00047. > > Thanks, > > Aaron > > > > 00003|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00004|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00005|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00006|discovery|WARN:new link detected (06:d6:00:24:a8:c4:b9:00 p:71 > -> 06:d6:00:12:e2:b8:a5:d0 p:20) > 00007|discovery|WARN:new link detected (06:d6:00:12:e2:b8:a5:d0 p:20 > -> 06:d6:00:24:a8:c4:b9:00 p:71) > 00008|discovery|WARN:new link detected (00:00:0e:83:40:39:19:96 p:1 -> > 00:00:0e:83:40:39:18:58 p:2) > 00009|discovery|WARN:new link detected (00:00:0e:83:40:39:1a:57 p:2 -> > 00:00:0e:83:40:39:19:96 p:2) > 00010|discovery|WARN:new link detected (00:00:0e:83:40:39:18:58 p:2 -> > 00:00:0e:83:40:39:19:96 p:1) > 00011|discovery|WARN:new link detected (00:00:0e:83:40:39:1b:93 p:2 -> > 00:00:0e:83:40:39:18:1b p:2) > 00012|discovery|WARN:new link detected (0e:84:00:23:47:c8:bc:00 p:20 > -> 06:d6:00:21:f7:be:8d:00 p:53) > 00013|discovery|WARN:new link detected (0e:84:00:23:47:ca:bc:40 p:49 > -> 00:00:00:12:e2:78:31:f5 p:10) > 00014|discovery|WARN:new link detected (06:d6:00:23:47:c8:8c:40 p:20 > -> 0e:84:00:24:a8:d2:48:00 p:49) > 00015|discovery|WARN:new link detected (0e:84:00:26:f1:40:a8:00 p:51 > -> 0e:84:00:24:a8:d2:48:00 p:51) > 00016|discovery|WARN:new link detected (0e:84:00:24:a8:d2:48:00 p:50 > -> 0e:84:00:23:47:ca:bc:40 p:51) > 00017|discovery|WARN:new link detected (0e:84:00:23:47:ca:bc:40 p:51 > -> 0e:84:00:24:a8:d2:48:00 p:50) > 00018|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:51 > -> 0e:84:00:23:47:ca:bc:40 p:50) > 00019|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:41 > -> 0e:84:00:24:a8:d2:b8:40 p:20) > 00020|discovery|WARN:new link detected (0e:84:00:23:47:c8:bc:00 p:49 > -> 06:d6:00:12:e2:b8:a5:d0 p:5) > 00021|discovery|WARN:new link detected (06:d6:00:12:e2:b8:a5:d0 p:5 -> > 0e:84:00:23:47:c8:bc:00 p:49) > 00022|discovery|WARN:new link detected (0e:84:00:26:f1:40:a8:00 p:50 > -> 0e:84:00:23:47:c8:bc:00 p:51) > 00023|discovery|WARN:new link detected (0e:84:00:23:47:c8:bc:00 p:51 > -> 0e:84:00:26:f1:40:a8:00 p:50) > 00024|discovery|WARN:new link detected (0e:84:00:24:a8:d2:48:00 p:51 > -> 0e:84:00:26:f1:40:a8:00 p:51) > 00025|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:20 > -> 06:d6:00:26:f1:3f:e4:80 p:41) > 00026|discovery|WARN:new link detected (0e:84:00:23:47:ca:bc:40 p:50 > -> 0e:84:00:24:a8:d2:b8:40 p:51) > 00027|discovery|WARN:new link detected (00:00:00:00:00:00:00:92 p:2 -> > 00:00:00:12:e2:b8:f3:d2 p:27) > 00028|discovery|WARN:new link detected (00:00:00:12:e2:b8:f3:d0 p:1 -> > 03:85:00:23:47:4e:2e:c0 p:3) > 00029|discovery|WARN:new link detected (00:00:00:12:e2:b8:f3:d0 p:15 > -> 00:00:00:12:e2:b8:f3:d2 p:16) > 00030|discovery|WARN:new link detected (00:00:00:12:e2:b8:f3:d2 p:16 > -> 00:00:00:12:e2:b8:f3:d0 p:15) > 00031|discovery|WARN:new link detected (0e:84:00:24:a8:d2:48:00 p:49 > -> 06:d6:00:23:47:c8:8c:40 p:20) > 00032|discovery|WARN:new link detected (06:d6:00:21:f7:be:8d:00 p:53 > -> 0e:84:00:23:47:c8:bc:00 p:20) > 00033|discovery|WARN:new link detected (06:d0:00:21:f7:be:8d:00 p:3 -> > 06:d0:00:23:47:cc:44:00 p:1) > 00034|discovery|WARN:new link detected (00:00:0e:83:40:39:18:1b p:2 -> > 00:00:0e:83:40:39:1b:93 p:2) > 00035|discovery|WARN:new link detected (00:00:0e:83:40:39:18:1b p:1 -> > 06:d6:00:12:e2:b8:a5:d0 p:9) > 00036|discovery|WARN:new link detected (00:00:00:00:00:00:00:95 p:1 -> > 06:d0:00:23:47:cc:44:00 p:22) > 00037|discovery|WARN:new link detected (00:00:00:12:e2:78:31:f5 p:10 > -> 0e:84:00:23:47:ca:bc:40 p:49) > 00038|discovery|WARN:new link detected (06:d0:00:23:47:cc:44:00 p:1 -> > 06:d0:00:21:f7:be:8d:00 p:3) > 00039|discovery|WARN:new link detected (06:d6:00:21:f7:be:8d:00 p:64 > -> 06:d0:00:21:f7:be:8d:00 p:63) > 00040|discovery|WARN:new link detected (06:d0:00:21:f7:be:8d:00 p:63 > -> 06:d6:00:21:f7:be:8d:00 p:64) > 00041|discovery|WARN:new link detected (00:00:0e:83:40:39:19:96 p:2 -> > 00:00:0e:83:40:39:1a:57 p:2) > 00042|discovery|WARN:new link detected (00:00:0e:83:40:39:1a:57 p:3 -> > 00:00:0e:83:40:39:1b:93 p:1) > 00043|discovery|WARN:new link detected (00:00:0e:83:40:39:1b:93 p:1 -> > 00:00:0e:83:40:39:1a:57 p:3) > 00044|discovery|WARN:new link detected (03:85:00:23:47:4e:2e:c0 p:3 -> > 00:00:00:12:e2:b8:f3:d0 p:1) > 00045|discovery|WARN:new link detected (03:85:00:23:47:4e:2e:c0 p:8 -> > 00:00:00:12:e2:78:31:f5 p:2) > 00046|discovery|WARN:new link detected (00:00:00:12:e2:78:31:f5 p:2 -> > 03:85:00:23:47:4e:2e:c0 p:8) > 00047|openflow|WARN:stream: connection closed by peer > 00048|nox|WARN:stream: connection closed by peer > 00049|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00050|openflow|WARN:stream: receive error: Connection reset by peer > 00051|nox|WARN:Error sending features request: Connection reset by peer > 00052|nox|WARN:Received unsupported message type during handshake (11) > 00053|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00054|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00055|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00056|openflow|WARN:stream: connection closed by peer > 00057|nox|WARN:stream: connection closed by peer > 00058|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00059|nox|WARN:Received unsupported message type during handshake (11) > 00060|nox|WARN:Received unsupported message type during handshake (11) > 00061|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00062|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00063|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00064|openflow|WARN:stream: connection closed by peer > 00065|nox|WARN:stream: connection closed by peer > 00066|openflow|WARN:stream: connection closed by peer > 00067|nox|WARN:stream: connection closed by peer > 00068|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00069|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00070|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00071|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00072|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00073|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00074|nox|WARN:Ignoring features reply received while in state > 'receiving ofmp capability reply' > 00075|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:20 > -> 06:d6:00:26:f1:3f:e4:80 p:41) > 00076|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00077|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:41 > -> 0e:84:00:24:a8:d2:b8:40 p:20) > 00078|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00079|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00080|discovery|WARN:link timeout (06:d6:00:26:f1:3f:e4:80 p:41 -> > 0e:84:00:24:a8:d2:b8:40p:20) > 00081|discovery|WARN:link timeout (0e:84:00:24:a8:d2:b8:40 p:20 -> > 06:d6:00:26:f1:3f:e4:80p:41) > 00082|discovery|WARN:link timeout (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80p:39) > 00083|discovery|WARN:link timeout (06:d6:00:26:f1:3f:e4:80 p:20 -> > 06:d0:00:26:f1:3f:e4:80p:14) > 00084|discovery|WARN:link timeout (06:d0:00:26:f1:3f:e4:80 p:14 -> > 06:d6:00:26:f1:3f:e4:80p:20) > 00085|openflow|WARN:stream: no response to inactivity probe after 15 > seconds, disconnecting > 00086|nox|WARN:stream: disconnected (Protocol error) > 00087|openflow|WARN:stream: no response to inactivity probe after 15 > seconds, disconnecting > 00088|nox|WARN:stream: disconnected (Protocol error) > 00089|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00090|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00091|nox|WARN:Received unsupported message type during handshake (11) > 00092|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00093|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00094|nox|WARN:Received unsupported message type during handshake (11) > 00095|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00096|nox|WARN:Ignoring features reply received while in state > 'receiving ofmp capability reply' > 00097|nox|WARN:Received unsupported message type during handshake (11) > 00098|nox|WARN:Received unsupported message type during handshake (11) > 00099|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving ofmp capability reply state > 00100|nox|WARN:Received unsupported message type during handshake (11) > 00101|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:41 > -> 0e:84:00:24:a8:d2:b8:40 p:20) > 00102|openflow-event|ERR:ignoring additional features reply event from > 6d60026f13fe480 > 00103|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:20 > -> 06:d6:00:26:f1:3f:e4:80 p:41) > 00104|openflow-event|ERR:received Openflow error packet from > dpid=6d60026f13fe480: type=1, code=4, 24 bytes of data > 00105|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00106|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00107|openflow|WARN:stream: connection closed by peer > 00108|nox|WARN:stream: connection closed by peer > 00109|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00110|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00111|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00112|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00113|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00114|openflow|WARN:stream: connection closed by peer > 00115|nox|WARN:stream: connection closed by peer > 00116|openflow|WARN:stream: connection closed by peer > 00117|nox|WARN:stream: connection closed by peer > 00118|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00119|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00120|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00121|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:41 > -> 0e:84:00:24:a8:d2:b8:40 p:20) > 00122|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:20 > -> 06:d6:00:26:f1:3f:e4:80 p:41) > 00123|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00124|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00125|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > 00126|openflow|WARN:stream: connection closed by peer > 00127|nox|WARN:stream: connection closed by peer > 00128|openflow|WARN:stream: connection closed by peer > 00129|nox|WARN:stream: connection closed by peer > 00130|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00131|nox|WARN:stream: closing connection due to timeout after 5 > seconds in receiving features reply state > 00132|nox|WARN:stream: closing connection due to timeout after 5 > seconds in sending features request state > 00133|discovery|WARN:new link detected (0e:84:00:24:a8:d2:b8:40 p:20 > -> 06:d6:00:26:f1:3f:e4:80 p:41) > 00134|discovery|WARN:new link detected (06:d0:00:26:f1:3f:e4:80 p:14 > -> 06:d6:00:26:f1:3f:e4:80 p:20) > 00135|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:41 > -> 0e:84:00:24:a8:d2:b8:40 p:20) > 00136|discovery|WARN:new link detected (00:00:00:00:00:00:01:04 p:1 -> > 06:d0:00:26:f1:3f:e4:80 p:39) > 00137|discovery|WARN:new link detected (06:d6:00:26:f1:3f:e4:80 p:20 > -> 06:d0:00:26:f1:3f:e4:80 p:14) > > > -- > Aaron O. Rosen > Masters Student - Network Communication > 306B Fluor Daniel > _______________________________________________ > openflow-discuss mailing list > [email protected] > https://mailman.stanford.edu/mailman/listinfo/openflow-discuss > _______________________________________________ openflow-discuss mailing list [email protected] https://mailman.stanford.edu/mailman/listinfo/openflow-discuss
