Draytek Vigor2926L User Manual page 604

Available settings are explained as follows:
Item
Switch Alert
Port Alert
588
Description
When VigorSwitch encounters the following alert events,
alert mechanism will perform corresponding actions based
on the servity level of the incident encountererd.
Incident – At present, Cold Start, Warm Start, Disconnect
and Reconnect will be treated as alert events.
Level – Specify the severity level for each incident. To
defined more severity level for choosing in this page, simply
open Central Management>>Switch>>Alert and Log and
click Alert Setup.
Port – Available Ethernet ports for the selected VigorSwitch
(e.g., G2260 in this case) will be shown on this page. Each
port can be confgiured with different alert level for diffent
alert event.
Vigor2926 Series User's Guide