ZYXEL-SYS-MEMORY-MIB

Description: Monitors ZyXEL switch system memory utilization including DRAM usage statistics for capacity planning.

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ZYXEL-SYS-MEMORY-MIB is a ZyXEL private enterprise MIB dedicated to system memory monitoring on ZyXEL switches, placing it squarely in the hardware resource/performance monitoring category. It exposes DRAM usage statistics such as total, used, and free memory, giving direct visibility into the switch's software memory load. This is one of the more explicitly hardware/software-health-focused ZyXEL MIBs: it is used specifically to track memory utilization trends over time, which can reveal a slow memory leak in the switch firmware or an approaching resource-exhaustion condition well before the device becomes unresponsive or reboots unexpectedly. It complements standard host-resource MIBs such as HOST-RESOURCES-MIB where supported, but provides ZyXEL's own vendor-specific memory counters where the standard MIB is absent or insufficiently granular. It is typically deployed on any ZyXEL managed switch as part of routine capacity-planning and health-monitoring dashboards, especially on devices running many software features that consume DRAM. Engineers can download the ZYXEL-SYS-MEMORY-MIB file directly to load it into their MIB browser.

An operator would poll the DRAM usage percentage or used/total memory counters at a regular interval and graph the trend; a steadily climbing used-memory value that never returns to baseline after configuration changes settle would suggest a memory leak in the switch's firmware. A sudden spike in memory utilization correlated with a specific feature being enabled, such as a large ACL or multicast group table, helps isolate which subsystem is consuming resources. Because no sample object names were supplied, exact column names are unconfirmed, but the functional data is total/used/free DRAM.

Tracks system memory utilization statistics and pool information on ZyXEL switches.