Technical Summary
This document describes terminology for the benchmarking of
devices that implement traffic control based on IP precedence or
Diffserv code point criteria. The terminology is to be applied
to measurements made on the data plane to evaluate IP traffic
control mechanisms.
New terminology is needed because most existing measurements
assume the absence of congestion and only a single per-hop-
behavior. This document introduces several new terms that will
allow measurements to be taken during periods of congestion.
Another key difference from existing terminology is the definition
of measurements as observed on egress as well as ingress of a
device/system under test. Again, the existence of congestion
requires the addition of egress measurements as well as those
taken on ingress; without observing traffic leaving a
device/system it is not possible to say whether traffic-control
mechanisms effectively dealt with congestion.
The principal measurements introduced in this document are vectors
for rate, delay, and jitter, all of which can be observed with or
without congestion of the DUT/SUT.
Working Group Summary
This document is a product of the BMWG WG. The WG has consensus
to publish this document as an Informational RFC.
Protocol Quality
This document was reviewed by David Kessens for the IESG.