Hi Vinllen,
On 2015年05月28日 10:49, Vinllen Chen wrote: > I think it maybe mininet bug, because after i change the mininet' ovs name to > top1 top2 top3 top4, i can get 4 datapath id in the ryu controller. > > On Wed, May 27, 2015 at 10:47 PM, Vinllen Chen <[email protected] > <mailto:[email protected]>> wrote: > > Hi, Dear all, > > I create 4 switches in the mininet: > # mn --custom tor_topo.py --topo mytopo --mac > --switch=ovsk,protocols=OpenFlow13 --controller=remote > *** Creating network > *** Adding controller > Unable to contact the remote controller at 127.0.0.1:6633 > <http://127.0.0.1:6633> > *** Adding hosts: > h1 h2 h3 h4 > *** Adding switches: > aaa1 aaa2 top1 top2 > *** Adding links: > (aaa1, top1) (aaa1, top2) (aaa2, top1) (aaa2, top2) (h1, aaa1) (h2, aaa1) > (h3, aaa2) (h4, aaa2) > *** Configuring hosts > h1 h2 h3 h4 > *** Starting controller > c0 > *** Starting 4 switches > aaa1 aaa2 top1 top2 ... > *** Starting CLI: > > But in the ryu code, i can only capture 2 datapath use the following > code: > @set_ev_cls(dpset.EventDP, dpset.DPSET_EV_DISPATCHER) > def handler_datapath(self, ev): > print "=Event DP=" > print "dpid: %i" % ev.dp.id <http://ev.dp.id> > print ev.dp.address > if ev.enter: > print "in dp event" > > #ryu-manage flow.py > loading app flowmod2ovs.py > loading app ryu.controller.ofp_handler > instantiating app None of DPSet > creating context dpset > instantiating app flowmod2ovs.py of OfdpaTe > instantiating app ryu.controller.ofp_handler of OFPHandler > DPSET: Multiple connections from 0000000000000002 > =Event DP= > dpid: 2 > ('127.0.0.1', 53878) > in dp event > =Event DP= > dpid: 1 > ('127.0.0.1', 53880) > in dp event > DPSET: Multiple connections from 0000000000000001 This messages shows that the dpid of switches are duplicated. mininet derives dpid from the switch name. eg.) If switch name is s1, mininet set dpid as 1. In your topology, dpid of switches may be duplicated. eg.) switch: aaa1 -> dpid: 1 switch: top1 -> dpid: 1 Thanks, Iwase > > The command "netstat -anlpt | grep 6633" show i have 53878, 53881, > 53880, 53879 map to 4 ovs. It looks like two of the switches has the same > datapath id. > > Could anyone tell me the reason ? Thankyou very much > > Best Regards, > Vinllen > > > > > ------------------------------------------------------------------------------ > > > > _______________________________________________ > Ryu-devel mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/ryu-devel > ------------------------------------------------------------------------------ _______________________________________________ Ryu-devel mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/ryu-devel
