bm::Meter Class Reference

Public Member Functions
color_t	execute (const Packet &pkt, color_t pre_color=0)

Detailed Description

Implementation of a general non-color aware N rate N+1 color marker. For P4 we will use 2 rate 3 color meters, as per this rfc.

Note that a Meter operates on either bytes or packets (not both, unlike a Counter).

Member Function Documentation

execute()

color_t bm::Meter::execute	(	const Packet &	pkt,
		color_t	pre_color = 0
	)

Executes the meter on the given packet. Returns an integral value in the range [0, N] (where N is the number of rates for this meter). A higher value means that the meter is "busier". For a classic trTCM:

• 0 <-> GREEN
• 1 <-> YELLOW
• 2 <-> RED You can optionally provide a pre-color for the meter. If the computed color is less than the pre-color, the pre-color will be returned instead.

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The documentation for this class was generated from the following file:

• include/bm/bm_sim/meters.h