Search Mailing List Archives

Limit search to: Subject & Body Subject Author
Sort by: Reverse Sort
Limit to: All This Week Last Week This Month Last Month
Select Date Range     through    

[mininet-discuss] Maybe a bug in mininet

Vinllen Chen cvinllen at
Wed May 27 18:48:08 PDT 2015

Hi, Dear all:

    I create 4 switch in mininet, and then connect to controller, but
controller can only get 2 datapath:

# mn --custom --topo mytopo --mac
--switch=ovsk,protocols=OpenFlow13 --controller=remote
*** Creating network
*** Adding controller
Unable to contact the remote controller at
*** 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
*** Starting 4 switches
aaa1 aaa2 top1 top2 ...
*** Starting CLI:

loading app
loading app ryu.controller.ofp_handler
instantiating app None of DPSet
creating context dpset
instantiating app of OfdpaTe
instantiating app ryu.controller.ofp_handler of OFPHandler
DPSET: Multiple connections from 0000000000000002
=Event DP=
dpid: 2
('', 53878)
in dp event
=Event DP=
dpid: 1
('', 53880)
in dp event
DPSET: Multiple connections from 0000000000000001

    It looks like the other 2 switch have same datapath.
    But if i change the switch name: top1 top2 top3 top4, i can get 4
datapath id successfully, so i think it maybe mininet's bug.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <>

More information about the mininet-discuss mailing list