%% You should probably cite draft-zhu-lsr-isis-sr-vtn-flexalgo-07 instead of this revision.
@techreport{zhu-lsr-isis-sr-vtn-flexalgo-01,
    number =    {draft-zhu-lsr-isis-sr-vtn-flexalgo-01},
    type =      {Internet-Draft},
    institution =   {Internet Engineering Task Force},
    publisher = {Internet Engineering Task Force},
    note =      {Work in Progress},
    url =       {https://datatracker.ietf.org/doc/draft-zhu-lsr-isis-sr-vtn-flexalgo/01/},
    author =    {Yongqing Zhu and Jie Dong and Zhibo Hu},
    title =     {{Using Flex-Algo for Segment Routing based VTN}},
    pagetotal = 8,
    year =      ,
    month =     ,
    day =       ,
    abstract =  {As defined in I-D.ietf-teas-enhanced-vpn, enhanced VPN (VPN+) aims to provide enhanced VPN service to support the needs of enhanced isolation and stringent performance requirements. VPN+ requires integration between the overlay VPN and the underlay network. A Virtual Transport Network (VTN) is a virtual network which consists of a subset of network topology and network resources allocated from the underlay network. A VTN could be used as the underlay for one or a group of VPN+ services. I-D.dong-lsr-sr-enhanced-vpn defines the IGP mechanisms with necessary extensions to build a set of Segment Routing (SR) based VTNs. This document describes a simplified mechanism to build the SR based VTNs using SR Flex-Algo together with minor extensions to IGP L2 bundle.},
}