Hello Nabil, Greg is almost right. RDI == Remote Defect Indication This is the abbreviation used in IEEE 802.1ag, Y.1731, G.707, G.8121 and rfc6428. Regards, Huub. ====
can we avoid different interpretation of the same abbreviation (RDI): RDI Remote Defect Indication for Continuity Check Message RDI Reverse Defect Indication AFAIK, the latter form is the interpretation used by both IEEE 802.1ag and Y.1731. How useful is the first form? Regards, Greg On Fri, Jan 4, 2013 at 8:17 AM, Bitar, Nabil N <nabil.n.bitar@xxxxxxxxxxx <mailto:nabil.n.bitar@xxxxxxxxxxx>> wrote: Hi Dave, Related to abbreviations comment below and to be clearer, I renamed the original terminology section to "Abbreviations and Terminology". I also created a subsection called "Abbreviations" ,and "Terminology" became the second subsection. Here iis how the edits look 3. Abbreviations and Terminology____ 3.1. Abbreviations____ AISAlarm Indication Signal____ ACAttachment Circuit____ BFDBidirectional Forwarding Detection____ CCContinuity Check____ CCMContinuity Check Message____ CECustomer Equipment____ CVConnectivity Verification____ E-LMI Ethernet Local Management Interface____ EVCEthernet Virtual Circuit____ LDPLabel Distribution Protocol____ LoSLoss of Signal____ MAMaintenance Association____ MDMaintenance Domain____ MEMaintenance Entity____ MEGMaintenance Entity Group____ MEPMaintenance End Point____ MIPMaintenance End Point____ MPLSMultiprotocol Label Switching____ MS-PW Multi-Segment Pseudowire____ NSNative Service____ OAMOperations, Administration, and Maintenance____ PEProvider Edge____ PSNPacket Switched Network____ PWPseudowire____ RDIRemote Defect Indication for Continuity Check Message____ RDI Reverse Defect Indication S-PESwitching Provider Edge____ TLVType Length Value____ T-PETerminating Provider Edge____ __ __ 3.2. Terminology____ This document uses the following terms with corresponding definitions: ____ - MD Level:Maintenance Domain (MD) Level which identifies a value in the range of 0-7 associated with Ethernet OAM frame. MD Level identifies the span of the Ethernet OAM frame.____ - MEP:Maintenance End Point is responsible for origination and termination of OAM frames for a given MEG.____ - MIP: Maintenance Intermediate Point is located between peer MEPs and can process OAM frames but does not initiate or terminate them.____ Further, this document also uses the terminology and conventions used in [RFC6310].____ Thanks, Nabil