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This Implementation Agreement (IA) defines the Common Management Interface Specification (CMIS), which may be used by pluggable or on-board modules, such as QSFP Double Density (QSFP-DD), OSFP, COBO, or QSFP, as well as by existing or future module developments with host to module management communication based on a two-wire interface. Common Management Interface Specification (CMIS) The management track in the PLL is currently working on CMIS 5.3, CPO/ELSFP, Link training, Form Factor Specific Hardware descriptions as well as forward looking discussions of how to manage modules more efficiently. Press Releases Special CMIS-VCS Parameters ReservedSpaceIndicator: It is used to reserve memory space for unused parameters for the purpose of maintaining compatibility with CMIS base Control Set memory space.
Understanding the Context
CMIS IA is the foundation for all of CMIS and has a family of supplements for specific applications C-CMIS – Coherent CMIS, Provides extensions to CMIS to manage modules with coherent interfaces. CMIS-FF – CMIS Form Factor, Provides details of HW pins and related registers for different module form factors. To address these ineficiencies and enable new management capabilities, a group of industry experts formed an independent offshoot of the QSFP-DD MSA (Multi-Source Agreement) and developed CMIS. This specification was designed to generically manage the wide range of technologies within the pluggable module space.
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Key Insights
Using generic management concepts, CMIS could be reused across different module ... CMIS (Common Management Interface Specification) IA, Current Rev 5.3 CMIS IA is the foundation for the plug-and-play and has a family of supplements for specific applications CMIS is a management interface for pluggable modules, defined in a family of (OIF) documents. CMIS is implemented (through SW code) on the host and on the module. Often overlooked, CMIS defines host to module interactions for management of the module ie provisioning, initialization, monitoring, upgrades, inventory, etc
