LUM-IFPHYSICAL-MIB

Description: Monitors physical layer attributes of optical interfaces on Infinera equipment.

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LUM-IFPHYSICAL-MIB is an Infinera-related SNMP MIB covering the physical layer of optical interfaces, as described in ITU-T Recommendation G.709, on optical transport equipment. It exposes general administrative objects (table sizes and last-change timestamps) together with two hardware-focused tables: the transceiver (Trx) table describing each pluggable optical transceiver, and the cage table describing the physical cage/slot housing each transceiver. Its principal use is hardware status monitoring - tracking how many transceivers and cages are present (table sizes) and when their configuration or operational state last changed, which lets an operator detect a pulled, failed, or newly inserted optical transceiver module. It aligns with the ITU-T G.709 physical layer specification as its normative dependency rather than standard IETF interface MIBs like IF-MIB, though conceptually it parallels the Entity/Physical inventory model. It is deployed on Infinera DWDM/OTN network elements to give operators visibility into the physical optics inventory and status underlying each logical interface. Engineers can download the LUM-IFPHYSICAL-MIB file directly to load it into their MIB browser.

An operator would poll ifPhysicalGeneralIfPhysicalTrxTableSize to see how many transceivers are currently recognized, and walk ifPhysicalTrxTable/ifPhysicalTrxEntry by ifPhysicalTrxIndex to read each ifPhysicalTrxName and check for state changes via ifPhysicalGeneralIfPhysicalTrxStateLastChangeTime, revealing when a transceiver was removed or reseated. Similarly, ifPhysicalGeneralIfPhysicalCageTableSize and its associated last-change timestamps flag when a cage/slot's physical presence status has changed, useful for correlating a sudden link-down event with a hardware removal.

LUM (Infinera) physical interface MIB for optical networking equipment. Provides SNMP objects for monitoring optical physical layer parameters, interface status, and transceiver information on Infinera optical transport platforms.