@techreport{delord-jounay-pwe3-ldp-aii-reachability-02, number = {draft-delord-jounay-pwe3-ldp-aii-reachability-02}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-delord-jounay-pwe3-ldp-aii-reachability/02/}, author = {Luca Martini and Philippe Niger and Matthew Bocci and Yaakov (J) Stein and Simon DeLord}, title = {{LDP extension for AII reachability}}, pagetotal = 11, year = 2008, month = sep, day = 22, abstract = {The dynamic End-to-End Multisegment pseudowire setup requires PEs to maintain a pseudowire routing table when using FEC129. There is a requirement to automatically advertise Attachment Individual Identifiers to enable the pseudowire routing tables to be populated. Two mechanisms already exist, a BGP reachability information distribution mechanism and an IGP based one. Here we define a third solution relying on LDP. It allows for automatic advertisement of the Attachment Individual Identifier prefixes provisioned on a T-PE when this node does not run BGP or IGP. The mechanism described here runs on the T-LDP (Targeted LDP) session between the T-PE and S-PE, and is intended to complement existing PW routing mechanisms using BGP or OSPF.}, }