[c-nsp] ToS equivalent to IP Precedence?

[Mihai CHELARU]

Tim Franklin wrote:
> 
> DSCP QoS is:
> 
> D5 | D4 | D3 | D2 | D1 | D0 | NA | NA
> 
> D5-D0 are DSCP values, NA is not used.  (Actually, I seem to remember
> someone pointed out last time this came up that there *is* now an RFC
> defining a use for the two LSBs, but I don't recall what it is, and by the
> sound of things it's not important in your case.)

Last two bits are ECN (RFC3168).