[c-nsp] debug mpls packet

[Oliver Boehmer (oboehmer)]

> >>>> Does anyone know what the middle number represents in a "debug
mpls
> >>>> packet" ( eg: {7963 6 254} )?
> >>>> I can't find this information anywhere.
> >>>>
> >>>> 7693 = Label
> >>>> 6 = ???
> >>>> 254 = I presume is the TTL
> >>>>
> >>>> What does the 6 represent??
> >>> it's the EXP value. you're right about the last being the TTL.
> >>>
> >>> 	oli
> >> Could it be the 3-bit EXP and 1-bit Bottom of Stack Flag combined?
> >
> > Hmm, why do you think so? Looking at the code, it only prints the 3
exp.
> > bits.
> 
> Cisco must have combined RFC3032 [2.1. Encoding the Label Stack] into
> one value.

still not sure what you refer to, and why you think the debug discussed
shows the 4-bit Exp+S value rather than the 3-bit Exp only? 

	oli