[ovs-discuss] the default config of ovs

[linaishan]

Hi all,
I have a question about ovs with no controller.
At the beginning, I find the hosts linked to ovs with no controller couldn't ping each other, which just like the situation in mininet, if you don't set a controller, the host1 could't reach to host2.
But recently, I find that even there's no controller, the hosts linked to ovs could reach each other. 
That's is what I can't understand.
I use ovs-ofctl dump-flows, there's no flow entry. But if I use ovs-dpctl dump-flows, some opportune flow entries will be found. If I stop the ping command, a time later, using ovs-dpctl dump-flows will find nothing. If I start ping command again, the flow entries will appear again.
I don't understand the mechanism what add flow entries to the ovs, and why can't list the flow entries with ovs-ofctl.
How can I forbid this mechanism?
I want a ovs which can't work without controller. How shoud I config the ovs?




linaishan
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