The displayed AOS-CX sFlow configuration contains two values that directly determine sampling and polling behavior: Sampling Rate 1024 and Polling Interval 30 .
The sampling rate of 1024 means that approximately one out of every 1024 packets is selected for flow sampling. HPE Aruba Networking defines the sFlow sampling rate specifically in terms of packets , not bytes. Therefore, option A represents the intended answer, although technically its wording should state “1 out of every 1024 packets is sampled” rather than “data bytes.” HPE documentation explicitly describes sflow sampling < RATE > as defining the sampling rate in number of packets; for example, a rate of 4096 means one out of every 4096 packets is sampled. Aruba Networks
The Polling Interval 30 means that sFlow interface counter information is collected and exported at 30-second intervals , making option C correct. HPE Aruba documents sflow polling < INTERVAL > as specifying the polling interval in seconds, with 30 seconds also being the standard default. Aruba Networks
The Header Size 128 determines how much of a sampled packet header is included, while Max Datagram Size 1400 controls the maximum sFlow datagram size; neither value represents the sampling ratio. Aruba Networks
Study Guide References: sFlow Agent; Sampling Rate; Polling Interval; Flow Samples; Counter Samples; sFlow Datagram and Header Size.
