@misc{rfc8099,
    series =    {Request for Comments},
    number =    8099,
    howpublished =  {RFC 8099},
    publisher = {RFC Editor},
    doi =       {10.17487/RFC8099},
    url =       {https://www.rfc-editor.org/info/rfc8099},
    author =    {Huaimo Chen and Richard Li and Alvaro Retana and Yi Yang and Vic Liu},
    title =     {{OSPF Topology-Transparent Zone}},
    pagetotal = 27,
    year =      2017,
    month =     feb,
    abstract =  {This document presents a Topology-Transparent Zone (TTZ) in an OSPF area. A TTZ comprises a group of routers and a number of links connecting these routers. Any router outside of the zone is not aware of the zone. A TTZ hides the internal topology of the TTZ from the outside. It does not directly advertise any internal information about the TTZ to a router outside of the TTZ. The information about the links and routers such as a link down inside the TTZ is not advertised to any router outside of the TTZ.},
}