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    Supported LDP Standards

    The Junos OS substantially supports the following RFCs, which define standards for LDP.

    • RFC 3212, Constraint-Based LSP Setup using LDP
    • RFC 3478, Graceful Restart Mechanism for Label Distribution Protocol

    The following RFCs do not define standards, but provide information about LDP. The IETF classifies them as “Informational.”

    • RFC 3215, LDP State Machine
    • RFC 5036, LDP Specification

      For the following features described in the indicated sections of the RFC, the Junos OS supports one of the possible modes but not the other:

      • Label distribution control (section 2.6.1): Ordered mode is supported, but not Independent mode.
      • Label retention (section 2.6.2): Liberal mode is supported, but not Conservative mode.
      • Label advertisement (section 2.6.3): Downstream Unsolicited mode is supported, but not Downstream on Demand mode.
    • RFC 5443, LDP IGP Synchronization

    Published: 2012-07-02