@misc{rfc8517,
    series =    {Request for Comments},
    number =    8517,
    howpublished =  {RFC 8517},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8517},
    url =       {https://www.rfc-editor.org/info/rfc8517},
    author =    {David Dolson and Juho Snellman and Mohamed Boucadair and Christian Jacquenet},
    title =     {{An Inventory of Transport-Centric Functions Provided by Middleboxes: An Operator Perspective}},
    pagetotal = 21,
    year =      2019,
    month =     feb,
    abstract =  {This document summarizes an operator's perception of the benefits that may be provided by intermediary devices that execute functions beyond normal IP forwarding. Such intermediary devices are often called "middleboxes". RFC 3234 defines a taxonomy of middleboxes and issues in the Internet. Most of those middleboxes utilize or modify application- layer data. This document primarily focuses on devices that observe and act on information carried in the transport layer, and especially information carried in TCP packets.},
}