Verify the sFlow configuration:
show sflow
NX-9372# show sflow
sflow sampling-rate : 4096
sflow max-sampled-size : 128
sflow counter-poll-interval : 20
sflow max-datagram-size : 1400
sflow collector-ip : 10.29.33.20 , vrf management source 172.20.12.20
sflow collector-port : 6343
sflow agent-ip : 172.19.12.71
sflow data-source interface Ethernet1/1
sflow sampling-rate : 4096
sflow max-sampled-size : 128
sflow counter-poll-interval : 20
sflow max-datagram-size : 1400
sflow collector-ip : 10.29.33.20 , vrf management source 172.20.12.20
sflow collector-port : 6343
sflow agent-ip : 172.19.12.71
sflow data-source interface Ethernet1/1