%% You should probably cite rfc9291 instead of this I-D.
@techreport{ietf-opsawg-l2nm-04,
    number =    {draft-ietf-opsawg-l2nm-04},
    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-opsawg-l2nm/04/},
    author =    {Samier Barguil and Oscar Gonzalez de Dios and Mohamed Boucadair and Luis Angel Munoz},
    title =     {{A Layer 2 VPN Network YANG Model}},
    pagetotal = 148,
    year =      2021,
    month =     jul,
    day =       28,
    abstract =  {This document defines a L2VPN Network YANG Model (L2NM) that can be used to manage the provisioning of Layer 2 Virtual Private Network (VPN) services within a network (e.g., service provider network). The L2NM complements the Layer 2 Service Model (L2SM) by providing a network-centric view of the service that is internal to a service providers. As such, the L2NM is meant to be used by a network controller to derive the configuration information that will be sent to relevant network devices. Also, the document defines the initial versions of two IANA- maintained modules that defines a set of identities of BGP Layer 2 encapsulation types and pseudowire types.},
}