@misc{rfc8149,
    series =    {Request for Comments},
    number =    8149,
    howpublished =  {RFC 8149},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8149},
    url =       {https://www.rfc-editor.org/info/rfc8149},
    author =    {Tarek Saad and Rakesh Gandhi and Zafar Ali and Robert H. Venator and Yuji Kamite},
    title =     {{RSVP Extensions for Reoptimization of Loosely Routed Point-to-Multipoint Traffic Engineering Label Switched Paths (LSPs)}},
    pagetotal = 17,
    year =      2017,
    month =     apr,
    abstract =  {The reoptimization of a Point-to-Multipoint (P2MP) Traffic Engineering (TE) Label Switched Path (LSP) may be triggered based on the need to reoptimize an individual source-to-leaf (S2L) sub-LSP or a set of S2L sub-LSPs, both using the Sub-Group-based reoptimization method, or the entire P2MP-TE LSP tree using the Make-Before-Break (MBB) method. This document discusses the application of the existing mechanisms for path reoptimization of loosely routed Point-to-Point (P2P) TE LSPs to the P2MP-TE LSPs, identifies issues in doing so, and defines procedures to address them. When reoptimizing a large number of S2L sub-LSPs in a tree using the Sub-Group-based reoptimization method, the S2L sub-LSP descriptor list may need to be semantically fragmented. This document defines the notion of a fragment identifier to help recipient nodes unambiguously reconstruct the fragmented S2L sub-LSP descriptor list.},
}