On Fri, Apr 22, 2016 at 09:32:26AM +0000, Peter Gubka -X (pgubka - PANTHEON TECHNOLOGIES at Cisco) wrote: > Hello, > > I had to use 2 switches/bridges to reproduce the problem. Logs in attachments. > > Just for the time orientation: > Enabling 2 masters for 2 switches (controller firstly sent slave > automatically, and when it finds out that it is the first connection from > that device, it sends master then)
Thanks for the logs. Here is my interpretation. First, 14 makes itself master: vconn|DBG|tcp:10.25.2.14:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x3): role=master generation_id=1 vconn|DBG|tcp:10.25.2.14:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x3): role=master generation_id=1 vconn|DBG|tcp:10.25.2.13:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x3): role=nochange vconn|DBG|tcp:10.25.2.13:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x3): role=slave generation_id=0 Then 13 makes itself master: vconn|DBG|tcp:10.25.2.13:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x4): role=master generation_id=1 vconn|DBG|tcp:10.25.2.13:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x4): role=master generation_id=1 rconn|INFO|s1<->tcp:10.25.2.12:6653: connected vconn|DBG|tcp:10.25.2.12:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x0): role=nochange vconn|DBG|tcp:10.25.2.12:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x0): role=equal generation_id=1 vconn|DBG|tcp:10.25.2.12:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x1): role=slave generation_id=2 vconn|DBG|tcp:10.25.2.12:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x1): role=slave generation_id=2 Then 13 drops the connection and reconnects. Therefore it's initially "equal" and there's no master: rconn|INFO|s1<->tcp:10.25.2.13:6653: connected vconn|DBG|tcp:10.25.2.13:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x0): role=nochange vconn|DBG|tcp:10.25.2.13:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x0): role=equal generation_id=2 Then 13 requests that it become a "slave" and there's still no master: vconn|DBG|tcp:10.25.2.13:6653: received: OFPT_ROLE_REQUEST (OF1.3) (xid=0x1): role=slave generation_id=3 vconn|DBG|tcp:10.25.2.13:6653: sent (Success): OFPT_ROLE_REPLY (OF1.3) (xid=0x1): role=slave generation_id=3 And no controller ever after in the logs asks to become master, so there's never any master. _______________________________________________ discuss mailing list discuss@openvswitch.org http://openvswitch.org/mailman/listinfo/discuss
