> # Creating a New RMON from Device Manager Threshold Manager

> ## Restrictions

> RMON does not check the RMON alarm configuration before configuring the switch.

> ## Detailed Steps

> To configure an RMON alarm from Device Manager Threshold Manager, follow these steps:

> 1. Expand Events, choose RMON, and click the Control tab.

> You see the create RMON alarm Threshold Manager dialog box.

> A user error is prompted if adding the new alarm exceeds the maximum alarm.

> Note This feature is applicable when managing switches Release 4.1(1b) and later. Device Manager can only treat the existing alarm number as 0 for the checking.

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