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Work item:
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G.709/Y.1331 Amd.1
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Subject/title:
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Interfaces for the optical transport network (OTN) - Amendment 1
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Status:
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Approved on 2020-12-22
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Approval process:
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AAP
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Type of work item:
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Recommendation
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Version:
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-
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Equivalent number:
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-
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Timing:
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-
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Liaison:
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-
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Supporting members:
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Ciena, Huawei, Infinera, NTT, ZTE
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Summary:
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Recommendation ITU-T G.709/Y.1331 defines the requirements for the optical transport network (OTN) interface signals of the optical transport network, in terms of:
- OTN hierarchy
- functionality of the overhead in support of multi-wavelength optical networks
- frame structures
- bit rates
- formats for mapping client signals.
Edition 6.1 of this Recommendation includes the addition of tables with GCC bit rates, enhancements to the description of OTUCn-M behaviour, addition of an appendix that describes the implications on fault management for the case that the OTSiG (de)modulator process and associated OTSiG-O|OCh-O_TT function are located in adjacent equipment, and several typographical/editorial corrections.
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Comment:
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-
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Reference(s):
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Historic references:
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Contact(s):
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| ITU-T A.5 justification(s): |
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First registration in the WP:
2020-05-20 17:08:35
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Last update:
2021-01-26 11:21:26
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