%% You should probably cite rfc7449 instead of this I-D.
@techreport{ietf-pce-wson-routing-wavelength-06,
    number =    {draft-ietf-pce-wson-routing-wavelength-06},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-ietf-pce-wson-routing-wavelength/06/},
    author =    {Greg M. Bernstein and Jonas Mårtensson and Oscar Gonzalez de Dios and Takehiro Tsuritani and Tomonori Takeda and Young Lee},
    title =     {{PCEP Requirements for WSON Routing and Wavelength Assignment}},
    pagetotal = 13,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {This memo provides application-specific requirements for the Path Computation Element communication Protocol (PCEP) for the support of Wavelength Switched Optical Networks (WSON). Lightpath provisioning in WSONs requires a routing and wavelength assignment (RWA) process. From a path computation perspective, wavelength assignment is the process of determining which wavelength can be used on each hop of a path and forms an additional routing constraint to optical light path computation. Requirements for Optical impairments will be addressed in a separate document.},
}