After the global sFlow configuration, sFlow must be explicitly enabled on all the required interface ports.
Note
On SLX 9740, Port based sFlow is supported on port-channel interfaces and their member ports.
On all devices, except SLX 9740, Port based sFlow is not supported on port-channel interfaces. However, you can configure sFlow on the individual member ports of the port-channel and VE interfaces.
Note
When sFlow is enabled on an interface port, it inherits the sampling rate and polling interval from the global sFlow configuration.