3Com 3CNJ220-CRM, Руководство пользователя

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52 C
HAPTER
4: U
SING THE
C
ENTRAL
C
ONFIGURATION
M
ANAGER
SNMP Configuration
27 Click the SNMP Configuration tab to change the SNMP settings of the NJ220.
28 You can either Enable or Disable the “Set” operation of the IntelliJack.
29 Configure the “Get” and “Set” Community Strings for SNMP management
operations.
30 Enable or Disable SNMP Trap with the Set SNMP Trap setting. Once enabled, you
have the ability to configure the remaining trap settings.
SNMP provides the ability to send traps (notifications) to a trap destination, such
as an SNMP server, when one or more conditions have been met. Traps are
network packets that contain data relating to a component of the system sending
the trap. When the condition for the trap has been met, the SNMP agent forms an
SNMP packet and sends it to the administration application.
• A Cold Start Trap signals the administration application when the IntelliJack
does a Cold Start.
• A Link Down Trap signals when the SNMP agent on the IntelliJack has gone to
“down” state and is not reachable.
• The Link Up Trap signals when then SNMP agent has gone to the “up” state
and is now reachable.