Interface / port alarms persist when device is in Maintenance Mode

Products

• Network Observability
• Spectrum

Issue/Introduction

When a device model is placed into Maintenance Mode, the interface models associated with that device may still display existing alarms, such as "BAD LINK DETECTED"․ Users expect all component alarms to be suppressed or converted to Maintenance (brown) status automatically․ However, the interfaces continue to report critical status instead of the expected maintenance state․​​​​​

 

SYMPTOMS:

• Device is in Maintenance Mode (brown) but interfaces remain red/critical

• Existing alarms on interfaces are not suppressed

• Interface models do not display the Maintenance (brown) condition color

CONTEXT: Occurs when placing a device into Maintenance Mode without enabling specific attribute propagation settings․

IMPACT: Operators may investigate invalid alarms on devices that are undergoing scheduled maintenance․

Environment

DX NetOps Spectrum: Any version

Cause

By default, placing a device model into Maintenance Mode places its interface models into maintenance mode (stopping polling), but it does not automatically suppress existing alarms or generate the brown Maintenance alarm on the interfaces․ The rollMMAlarmToIF attribute (0x12a7a) is required to explicitly push the visual Maintenance alarm state to the interfaces and suppress existing link alarms․

Resolution

 

1. ENABLE ALARM ROLLDOWN

   To ensure interface alarms are suppressed and converted to Maintenance status, you must enable the rollMMAlarmToIF attribute․

   Locate the Device Model in OneClick․ Attributes Tab > Search for rollMMAlarmToIF (Attribute ID: 0x12a7a)․ Set the value to: TRUE (or Yes)․

   EXPECTED: Attribute value updates to TRUE․ NOTE: This attribute must be set before placing the device into Maintenance Mode․

2. TOGGLE MAINTENANCE MODE

   If the device is already in Maintenance Mode, you must reset it for the setting to take effect․

   Action: Remove the device from Maintenance Mode․ Action: Place the device back into Maintenance Mode․

   EXPECTED: The device icon turns brown (Maintenance)․

 

Additional Information

Suppress Events and Alarms for Devices in Maintenance or Hibernation

Maintenance and Hibernation Mode for Devices