when running mininet topology, we can use ovs or ovsk for --switch argument in mininet's mn command, for instance:
mn --custom topo.py --topo topo --mac --switch ovs --controller remote
mn --custom topo.py --topo topo --mac --switch ovsk --controller remote
So I wonder if there is any difference between these two commands?
As openvswitch can run on user space or kernel space, I thought it might be related to that, ovsk means ovs kernel space. However I couldn't find any information about this on documentations and google.
Anyone can help with this?
From the mn code in mn git: ovsk and ovs point to the same class of object OVSSwitch, "ovsk" is still existing for compatibility reason, but actually they are the same.
SWITCHDEF = 'default'
SWITCHES = { 'user': UserSwitch,
'ovs': OVSSwitch,
'ovsbr' : OVSBridge,
# Keep ovsk for compatibility with 2.0
'ovsk': OVSSwitch,
'ivs': IVSSwitch,
'lxbr': LinuxBridge,
'default': OVSSwitch }