CYAN-CEM-MIB

Description: Manages circuit emulation module (CEM) configuration and status for Cyan optical equipment.

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CYAN-CEM-MIB is a vendor-specific MIB from Cyan Inc. (now part of Ciena) for its packet-optical transport platforms, covering the Common Equipment Module (CEM) that houses shared shelf-level hardware functions. It exposes inventory and state data organized by shelf and module identifier, including administrative and active/standby role, LED and alarm indicators, asset tagging, and software build information. This makes it directly useful for monitoring hardware and software status of the equipment: tracking whether a module is in service or standby, its in-service soak timer, alarm/LED state, base MAC address, and the currently running software build version. It is a proprietary enterprise MIB and does not appear to lean heavily on IETF standard MIBs, instead defining its own object tree under the Cyan enterprise OID branch. It is typically deployed by network operations teams managing Cyan/Ciena optical transport shelves in metro and access network deployments. Network engineers evaluating or troubleshooting this functionality can download the CYAN-CEM-MIB file directly to load it into their MIB browser.

An operator would poll cyanCemTable/cyanCemEntry indexed by cyanCemShelfId and cyanCemCemId to check cyanCemActiveLed and cyanCemAlarmLed for a red alarm state, or read cyanCemActivestandbyState to confirm the standby CEM has not unexpectedly taken over. Checking cyanCemAdminState against an unexpected 'out of service' value combined with a still-running cyanCemAutoinserviceSoakTimeSec would reveal a module stuck in its soak period after insertion. cyanCemCurrCyanSwBuildVersions can be compared across shelves to catch a card still running an outdated firmware build.

Manages Common Equipment Module (CEM) configuration including shelf/module IDs, LED status, and operational states.