Gurucharan, Thanks for the follow up! The issue was that floodlight has default forwarding property. After I removed the behavior then default flow has been removed.
before... user1@devtest11:~$ sudo ovs-ofctl dump-flows mybridge3-rb NXST_FLOW reply (xid=0x4): cookie=0x20000000000000, duration=35.794s, table=0, n_packets=44, n_bytes=3256, idle_timeout=5, idle_age=0, priority=0,in_port=3,vlan_tci=0x0000,dl_src=00:0e:d7:be:eb:40,dl_dst=d4:be:d9:52:15:b0 actions=output:2 cookie=0x20000000000000, duration=35.791s, table=0, n_packets=36, n_bytes=2664, idle_timeout=5, idle_age=0, priority=0,in_port=2,vlan_tci=0x0000,dl_src=d4:be:d9:52:15:b0,dl_dst=00:0e:d7:be:eb:40 actions=output:3 after... user1@devtest11:~$ sudo ovs-ofctl dump-flows mybridge3-rb NXST_FLOW reply (xid=0x4): user1@devtest11:~$ hosts cannot ping now... On Mon, Aug 11, 2014 at 8:43 PM, Gurucharan Shetty <[email protected]> wrote: > On Mon, Aug 11, 2014 at 3:56 PM, Prasanna Yabaluri > <[email protected]> wrote: > > Thanks! > > > > Thinking this command will do a clean state of vswitch and remove any > > configs by controller.....I tried sudo ovs-vsctl emer-reset ..did not > work. > ovs-vsctl emer-reset > Reset the configuration into a clean state. It > deconfigures > OpenFlow controllers, OVSDB servers, and SSL, and deletes > port > mirroring, fail_mode, NetFlow, sFlow, and IPFIX > configuration. > This command also removes all other-config keys from all > data‐ > base records, except that other-config:hwaddr is preserved > if it > is present in a Bridge record. Other networking > configuration > is left as-is. > > What does "ovs-ofctl dump-flows $bridgename" say after the above command? > If it shows a "NORMAL" flow, it probably simply moved to a learning switch. > > > > > So the concept of SDN does not allow to override the controller by > directly > > modifying the vSwitch? > If you have hypervisor 'root' access, you can override. For e.g., you can > 'ifconfig ethX down' where controller is reached via 'ethX'. And then > delete flows or delete bridges etc. > > > > > > > > > On Mon, Aug 11, 2014 at 6:45 PM, Gurucharan Shetty <[email protected]> > > wrote: > >> > >> On Mon, Aug 11, 2014 at 3:39 PM, Prasanna Yabaluri > >> <[email protected]> wrote: > >> > Thank you for the response! the hosts are still pinging > >> > > >> > user1@devtest11:~$ sudo ovs-dpctl del-flows > >> > user1@devtest11:~$ > >> > user1@devtest11:~$ > >> >>>>>>>>>>>>>>>not sure how are these flows getting installed... > >> > user1@devtest11:~$ sudo ovs-ofctl del-flows mybridge3-rb > >> > user1@devtest11:~$ sudo ovs-ofctl dump-flows mybridge3-rb > >> If the above command is showing entries, it means that your controller > >> is populating the flow table. I don't know any other explanation to > >> it. > > > > >
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