%% You should probably cite draft-ietf-pce-stateful-pce-app instead of this I-D.
@techreport{zhang-pce-stateful-pce-app-00,
    number =    {draft-zhang-pce-stateful-pce-app-00},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zhang-pce-stateful-pce-app/00/},
    author =    {Fatai Zhang and Xian Zhang and Young Lee and Ramon Casellas and Oscar Gonzalez de Dios},
    title =     {{Applicability of Stateful Path Computation Element (PCE)}},
    pagetotal = 20,
    year =      2012,
    month =     mar,
    day =       5,
    abstract =  {The Path Computation Element (PCE) provides a solution for Traffic Engineering (TE) based path calculation in large, multi-domain, multi-region, or multi-layer networks. Depending on whether a PCE keeps information about LSPs and reserved resource usage in the network or not, it can be categorized as either stateful or stateless. This memo describes general considerations for stateful PCE(s) and examines its applicability through a number of typical scenarios. It shows how stateful PCE(s) can be applied to facilitate these applications.},
}