Re: Label Set Object

[Dimitri.Papadimitriou@alcatel.be]

ben,

Ben Mack-Crane wrote:
> 
> Dimitri,
> 
> As Ben stated, while 32 bit labels are (currently) the norm for CType 2,
> RFCs 3473 and 3471 indicate that the length is variable.  If this is the
> case a header is required to parse the subobjects.  If the length of
> CType 2 labels is fixed at 32 bits, the RFCs should be corrected to
> indicate this.

 each element (of the label set) is referred to as a subchannel 
 identifier and has the same format as a generalized label.

 the subchannel represents the label (wavelength, fiber ... ) which
 is eligible for allocation; each sub-field has the same format as
 described for the labels and the interpretation of the latter
 depends on the type of the link over which the label is to be used

 the point is that concomittantly any c-type 2 label values defined 
 today have a 32-bit length

thanks,
- dimitri.

> Regards,
> Ben Mack-Crane
> 
> Dimitri.Papadimitriou@alcatel.be wrote:
> <snip>
> >
> >>For 3 it is fixed, but for 2 it could be variable length, even though 32
> >>bits are currently the norm.
> >
> >
> > all C-Type 2 have a 32-bit length (except C-Type 3): port,
> > wavelength and tdm labels as well as generic mpls labels,
> > atm and frame relay labels are encoded right justified
> > aligned in 32 bits (4 octets)
> >
> <snip>
> 
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Papadimitriou Dimitri 
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