Link Management Protocol Extensions for Link discovery Using Loss of Light

Document Type Expired Internet-Draft (individual)
Authors Richard Bradford  , Dimitri Papadimitriou  , Dan Tappan 
Last updated 2003-04-11
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document proposes an enhanced mechanism for Link Management Protocol’s Link Verification procedure that is independent of the data encoding type. It can be used for any point-to-point link, including both Optical Links and SONET/SDH Links. The general proposal is to use the transmission of light by the sender and recognition of the presence or absence of light by the receiver to identify port mapping. The proposal includes minor extensions to the existing messages to implement this extension to the link verification procedure.


Richard Bradford (
Dimitri Papadimitriou (
Dan Tappan (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)