@techreport{wu-mpls-diff-ext-01,
    number =    {draft-wu-mpls-diff-ext-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-wu-mpls-diff-ext/01/},
    author =    {Dr. Bruce S. Davie and Pasi J. Vaananen and Liwen Wu and Pierrick Cheval and François Le Faucheur},
    title =     {{MPLS Support of Differentiated Services by ATM LSRs and Frame Relay LSRs}},
    pagetotal = 11,
    year =      1999,
    month =     feb,
    day =       26,
    abstract =  {This document proposes updates to the current MPLS LDP and MPLS RSVP messages for LSP establishment in order to support Differentiated Services (Diff-Serv) over ATM LSRs and Frame Relay LSRs. In brief, we propose that: - a set of PHBs that requires no misordering of packets in a microflow (even if the microflow contains packets for more than one PHB) be defined as a PHB forwarding class (PFC); - packets that belong to the same PFC and the same forwarding equivalence class (FEC) should be transported over the same ATM LSP or FR LSP; - for a given FEC, a separate ATM LSP or FR LSP should be established for each PFC, so that multiple ATM or FR LSPs are established in parallel for support of Diff-Serv; - among the set of PHBs transported over the same ATM LSP or FR LSP, the different PHBs' drop precedences be mapped into, and enforced via, the layer 2 specific selective discard mechanism (CLP bit with ATM, DE bit with FR).},
}