INDUSTRY NEWS
OIF advances critical projects
OIF held its Q2 2025 Technical and Market Awareness & Education Committees Member Meeting May 5th -8th, 2025 ,in Tallinn, Estonia. The meeting advanced technical specifications and key projects essential to scaling next-generation networks, highlighted progress on related implementation agreements and featured guest speaker Tarko Tikan of Telia Estonia. It also featured a recap of OIF’s interoperability demo at OFC 2025, highlights from the 448Gbps Signalling for AI Workshop, and discussion around the upcoming ECOC 2025 interoperability demo, building on the success and momentum from OFC.
• FlexE 3.0 Implementation Agreement (IA): Building on previous IAs, FlexE 3.0 supports Flex Ethernet Groups composed of 800G Ethernet PHYs and introduces 100G calendar slots and payload type overhead. These features address growing demands in high-capacity transport and hyperscale environments, increasing flexibility and enabling scalable Ethernet service delivery. In addition, OIF announced that presentations from its recent 448Gbps Signalling for AI Workshop—featuring perspectives from hyperscalers, analysts and member companies driving next-gen electrical
Key project updates include: • C-CMIS 1.4 Implementation Agreement (IA): The latest update to the C-CMIS IA introduces expanded support for coherent interfaces, including enhanced maintenance/ replacement signal control, enhanced consequent action control, payload type support, additional alarming, CD target set and a new CDB command to display Coherent Application Attributes. These updates strengthen
signalling—are now publicly available on its website. The workshop, held April 15–16 in Santa Clara, provided a comprehensive look at the ecosystem readiness and future direction of 448G, with robust participation and insight from across the industry, and is directly driving work within OIF moving forward. “As network requirements evolve and grow more complex, OIF’s collaborative environment is where real, measurable progress happens,” said OIF Officer and Technical Committee Vice Chair Sam Kocsis (Amphenol). “Our member meetings are designed to accelerate technical consensus and ensure alignment across the ecosystem.”
interoperability for ZR and ZR+ modules at
400G, 800G and beyond, laying the groundwork for managing a broader class of coherent pluggable modules.
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ISSUE 41 | Q2 2025
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