@techreport{ietf-idr-bgpls-inter-as-topology-ext-32,
    number =    {draft-ietf-idr-bgpls-inter-as-topology-ext-32},
    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-idr-bgpls-inter-as-topology-ext/32/},
    author =    {Aijun Wang and Huaimo Chen and Ketan Talaulikar and Shunwan Zhuang and Changwang Lin},
    title =     {{BGP-LS Extension for Inter-AS Topology Retrieval}},
    pagetotal = 15,
    year =      2026,
    month =     may,
    day =       20,
    abstract =  {This document specifies the procedure for distributing Border Gateway Protocol-Link State (BGP-LS) key parameters for inter-domain links between two Autonomous Systems (ASes). It defines a new type within the BGP-LS Network Layer Reachability Information (NLRI) for an inter-AS Link, as well as three new type-length-values (TLVs) for the BGP-LS inter-AS Link descriptor. These BGP-LS extensions enable Software-Defined Networking (SDN) controllers to retrieve network topology across inter-AS environments. These extensions and procedures allow network operators to collect inter-domain interconnect information and automatically compute the end-to-end network topology using information provided by the BGP-LS protocol.},
}