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Summary:
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This amendment contains extensions to the fifth edition (06/2016) of ITU-T Recommendation G.709/Y.1331, related to the:
-Addition of paragraph that describes that G.798 complements G.709 (1)
-Addition of references to Rec. G.8260 (2)
-Addition of definitions and conventions that have been included in the past in G.870 (3, 5)
-Deletion and addition of abbreviations (4)
-Addition of a sentence that describes that 3R regeneration is used on both sides of an interface interconnecting user and provider administrations and two provider administrations (6)
-Corrections to the STU, MOTU, SOTUm and MOTUm descriptions (8.1, 8.2, 8.3, 8.4)
-Addition of a note describing a vendor specific mode in the GCC0 communication channel deployment (15.7.2.2)
-Deletion of OTUCn OSMC (15, 15.7.1, 15.7.2.4, 15.7.2.4.1.2)
-Deletion of reference to concatenation (15.9.2)
-Aligning the OPUk/OPUflex clock performance requirement in case of BMP based client mapping with G.8251 and G.798 (17.2, 17.19, 17.12)
-Clarify the 2-bit alignment when mapping 66-bit blocks into the OPUflex payload area (17.11, 17.12)
-Changing the minimum number of FlexE signals in a FlexE aware mapping into an OPUflex (17.12)
-Addition of 25GE client signal (2, 15.9.2.1.1, 17.13, 17.13.1)
-Deletion of ODUCn HAO reference (20.4.3.1).
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