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Work item:
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G.709.5 Amd.2
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Subject/title:
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Flexible OTN short-reach interfaces - Amendment 2
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Status:
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Consented on 2026-07-10 [Issued from previous study period]
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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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2026-07 (No priority specified)
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Liaison:
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OIF, OpenROADM, IEEE 802.3
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Supporting members:
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-
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Summary:
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Recommendation ITU-T G.709.5 specifies 100G, 200G, 400G and 800G flexible optical transport network (FlexO) short-reach interfaces. This Recommendation specifies the structure using forward error correction (FEC) code with a coding gain suitable for short-reach applications, and references common elements from Recommendation ITU-T G.709.1.
Amendment 1 to Recommendation ITU‑T G.709.5 adds a new FOIC1.2-RS optical short reach interface.
Corrigendum 1 makes the following changes:
• Clause 13.5.2. Corrects a typographical error in the Note.
• Clause 14.5.2. Aligns the lane skew tolerance requirement with the IEEE 802.3df value.
• Figure 13-5. Corrects a typographical error in the text label beside the FEC encode #1.
Amendment 2 to Recommendation ITU‑T G.709.5 aligns to latest terminology and frame representation from G.709.1 Edition 4.0. It also introduces new 800G optical short reach interfaces..
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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:
2024-08-20 15:55:26
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Last update:
2026-07-21 15:34:55
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