You can perform Extreme Enterasys Switch configuration using the following steps:
set sflow receiver 1 owner NFAExport timeout 180000
set sflow receiver 1 ip {NETFLOW_SERVER_IP}
Enter global configuration mode on the router or MSFC, and issue the following commands for each interface on which you want to enable flow:
set sflow port {INTERFACE_NAME} sampler 1
set sflow port {INTERFACE_NAME} sampler maxheadersize 256
set sflow port {INTERFACE_NAME} sampler rate 2048
set sflow port {INTERFACE_NAME} poller 1
set sflow port {INTERFACE_NAME} poller interval 20