flow programming

Direct Kernel Open vSwitch Flow Programming

Direct Kernel Open vSwitch Flow Programming

Typically, users will interact with the Open vSwitch kernel datapath by way of the ‘ovs-ofctl’ utility to program OpenFlow rules into the ‘ovs-vswitchd’. However, this isn’t the only mechanism for forwarding packets via the openvswitch kernel module. An additional direct flow-programming interface is available using the ‘ovs-dpctl’ utility to add flows to the kernel. This post will cover influencing the movement of packets through the openvswitch kernel module using the ‘ovs-dpctl’ utility.

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