ZYXEL-GREEN-ETHERNET-MIB

Description: Manages ZyXEL Green Ethernet energy-efficient features including auto power-down and short cable optimization.

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This MIB belongs to the ZyXEL switch family and covers Green Ethernet energy-efficiency features, including auto power-down of unused ports and short cable optimization that reduces transmit power on very short cable runs. It exposes per-port configuration objects to enable or disable these energy-saving features and likely status objects indicating whether a given port is currently in a reduced-power state. This MIB is used to monitor a software/power-management aspect of the device rather than classic faults: confirming which ports have energy-saving features enabled and whether they are actively reducing power, which matters for both energy-cost auditing and for ruling out these features as a cause of unexpected port behavior. It depends on the standard interface table (ifIndex-based) to associate energy-saving settings with specific physical ports. It is typically deployed in enterprise or SMB LAN switches where administrators want to reduce power consumption on idle or short-run ports without manually managing each port, relying on ZYXEL-GREEN-ETHERNET-MIB SNMP monitoring to confirm the energy-saving settings are actually taking effect.

An administrator would poll the per-port Green Ethernet configuration to confirm auto power-down and short-cable-optimization are enabled on ports connected via short patch cables in a wiring closet. If a port that should be power-saving is instead consistently drawing full power, checking this MIB's status objects helps confirm whether the feature is disabled or the port simply doesn't qualify for it (e.g., due to cable length or link partner behavior). This data is also useful for a periodic sustainability/energy-usage audit across the switch estate.

Manages energy-efficient Ethernet features including EEE (802.3az), auto power-down, and short-reach mode on switch ports.