Notification Configurations
User Guide    773
3.1.2  Enabling SNMP Traps
Choose the menu MAINTENANCE > SNMP > Notification > Trap Config to load the 
following page.
Figure 3-2 Enabling SNMP Traps
Follow these steps to enable some or all of the supported traps:
1)  Select the traps to be enabled according to your needs. With a trap enabled, the switch 
will send the corresponding trap message to the NMS when the trap is triggered.
SNMP 
Authentication
Triggered when a received SNMP request fails the authentication.
Coldstart Indicates that the SNMP entity is reinitializing itself such that its configurations 
may be changed. The trap can be triggered when you reboot the switch.
Warmstart Indicates that the SNMP entity is reinitializing itself with its configurations 
unchanged. For a switch running SNMP, the trap can be triggered if you 
disable and then enable SNMP without changing any parameters. 
Link Status Enable or disable Link Status Trap globally. The trap includes the following 
two sub-traps:
Linkup Trap: Indicates that a port status changes from linkdown to linkup.
Linkdown Trap: Indicates that a port status changes from linkup to linkdown. 
Link Status Trap can be triggered when it is enabled both globally and on the 
port, and you connect a new device to the port or disconnect a device from 
the port.
To enable the trap on a port, run the command snmp-server traps link-
status in Interface Configuration Mode of the port. To disable it, run the 
corresponding no command.
By default, the trap is enabled both globally and on all ports, which means 
that link status changes on any ports will trigger the trap. If you do not want to 
receive notification messages about some specific ports, disable the trap on 
those ports. 
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