[ovs-dev] [OVN]Cookie of OpenFlow will not change, if UUID of logical-flow changes.

[taoyunupt]

Hi,Numa,
              When I change the MTU of netork in OpenStack，the dhcp_options 
will also changes, and it will delete the old  logical flow ,and create a new 
one for put_dhcp_opts. So the UUID of releated logical-flow will change. 
But,the cookie of OpenFlow in the allocated chassis not changed until we 
restart the ovn-controller. By the way ,the function is always  OK.
              The version of OVS/OVN is 2.10.
              This situaiton will give us some trouble to track OpenFlow. What 
do you think?




Thanks,
Yun
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