Sflow configuration in Cisco Nexus as below:
feature sflow
sflow sampling-rate 50000
sflow max-sampled-size 200
sflow counter-poll-interval 100
sflow max-datagram-size 2000
sflow collector-ip xxx.xxx.xxx.xxx vrf default ( xxx=NTA Server IP )
sflow collector-port 2055
sflow agent-ip xxx.xxx.xxx.xxx ( xxx= Switch Management IP )
But not received any traffic and help me please.