21.1.2 sFlow Statistical Agent Feature
An agent on the Switch consists of the following two types of functionality:
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Flow statistics (referred to as flow samples in sFlow statistics). Hereafter, this name is used for notation.) Creation function
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Interface statistics (referred to as counter samples in sFlow statistics). Hereafter, this name is used for notation.) Creation function
The flow sample creation functionality samples sent and received packets (frames) at a user-specified rate, processes the packet information, and then sends it to a collector in flow sample format. The counter sample creation functionality sends interface statistics to a collector in counter sample format. The following figure shows collection points and collected data for the functionality.
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![[Figure Data]](./GRAPHICS/ZU214030.GIF)