create sflow analyzer_server 1 owner analyzer1 timeout infinite collectoraddress 10.0.0.50
create sflow counter_poller ports all analyzer_server_id 1 interval 20
create sflow flow_sampler ports all analyzer_server_id 1 rate 512
A previous posting discussed the selection of sampling rates. Additional information can be found on the D-Link web site.
See Trying out sFlow for suggestions on getting started with sFlow monitoring and reporting.