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
*** 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
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
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
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