| How to disable the alarm of Ethernet link down in Juniper MX-Series Router
Management interfaces are the primary interfaces for accessing the device remotely. Typically, a management interface is not connected to the in-band network, but is connected instead to the device's internal network.
If this management port is not connected (physically down), it triggers a major alarm:
To disable the management ports alarm use the following command:
#set chassis alarm management-ethernet link-down ignore #commit