@misc{rfc8051,
    series =    {Request for Comments},
    number =    8051,
    howpublished =  {RFC 8051},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8051},
    url =       {https://www.rfc-editor.org/info/rfc8051},
    author =    {Xian Zhang and Ina Minei},
    title =     {{Applicability of a Stateful Path Computation Element (PCE)}},
    pagetotal = 24,
    year =      2017,
    month =     jan,
    abstract =  {A stateful Path Computation Element (PCE) maintains information about Label Switched Path (LSP) characteristics and resource usage within a network in order to provide traffic-engineering calculations for its associated Path Computation Clients (PCCs). This document describes general considerations for a stateful PCE deployment and examines its applicability and benefits, as well as its challenges and limitations, through a number of use cases. PCE Communication Protocol (PCEP) extensions required for stateful PCE usage are covered in separate documents.},
}