eG Monitoring
 

Measures reported by JexPowerFailureTest

The chassis of the Juniper EX Switch is a rigid sheet-metal structure that houses the hardware components. The field-replaceable units (FRUs) in the EX series switches are:

  • Power supply
  • Fan tray
  • Uplink module
  • SFP transceiver
  • SFP+ transceiver
  • XFP transceiver

The power supply in the switches is a hot-removable and hot-insertable field-replaceable unit (FRU) that you can install on the rear panel without powering off the switch or disrupting the switching function. Some of the EX series switches have an internal redundant power supply, making the power supply fully redundant.

Abnormal power fluctuation to the hardware components often lead to the malfunctioning of the Juniper EX Switch which when left unnoticed can prove to be fatal to the availability and overall health. This test intercepts the traps sent by the switch, extracts information related to power supply failures from the traps, and reports the count of these trap messages to the eG manager. This information enables administrators to detect the abnormalities in the power supply if any, understand the nature of these failures, and accordingly decide on the remedial measures.

The measures made by this test are as follows:

Measurement Description Measurement Unit Interpretation
power_supply_count Indicates the number of times this event was triggered due to power supply failure during the last measurement period. Number The failure events may be generated due to the failure of the Power supply units of the Juniper EX Switch. If the failure events are not rectified within a certain pre-defined timeperiod, the switch will be shutdown automatically.

Ideally, the value of this measure should be zero. A high value is an indication of performance degradation of the Juniper EX Switch.