14.6 100-Mbps Configuration Guidelines: Model 2

Table 14.3 is taken from the standard and provides a set of delay values in bit times per meter, listed in terms of the speed of signal propagation on the cable. The speed (propagation time) is provided as a percentage of the speed of light (c); this is also called the "Nominal Velocity of Propagation (NVP)" in vendor literature.

If you know the propagation time (NVP) of the cable you are using, this table can provide the delay value in bit times per meter for the cable, which you can then use to find the round trip segment delay value for use in the Model 2 calculations.

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