Each port counter is periodically polled to gather the statistics to send to the collector. If there is more than one counter to be polled, the polling is distributed in such a way that each counter is visited once during each polling interval, and the data flows are spaced in time. For example, assume that the polling interval is 20 seconds and there are 40 counters to poll. Two ports will be polled each second, until all 40 are polled.
Configure the polling interval using the command:
configure sflow poll-interval seconds