[Nml-wg] Label sets

[Jason Zurawski]

ACK

-jason

On 6/28/12 12:06 PM, thus spake Freek Dijkstra:
> Hey Andrew,
>
>>>> <vlanRangeAvailability>3800-3809</vlanRangeAvailability>
>>
>> [..] Discontinuous ranges can be separated by commas
>> (3000-3250,3500,3750-4000). Its pretty easy to parse, generally we do a
>> couple splits on commas and dashes.
>
> Thanks. This indeed is easy enough, so let's go for this option.
>
>> Dashes and commas are the only special characters that OSCARS allows.
>
> This disallows negative numbers.
>
> Paranoid sanity check: would there ever be a technology that allows
> negative numbers as labels?
>
> The only thing I can imagine if one would describe the central frequency
> of G.694.1 (DWDM) as "0", positive numbers for frequencies above 193.1
> THz (thus wavelengths below 1552.52 nm), and negative numbers for
> frequencies below 193.1 THz (wavelengths above 1552.52 nm).
>
> I don't think this is an issue -- it is easy enough to use wavelength or
> frequency to avoid negative numbers, and GMPLS also does not list any
> negative label at
> http://www.iana.org/assignments/gmpls-sig-parameters/gmpls-sig-parameters.xml.
>
> Proposal 2-bis:
> ===============
> * Use the syntax with dashes and commas as described in proposal 2.
> * Explicitly forbid negative labels to avoid parsing errors later.
>
> OK?
>
> Freek