Managing NerveCenter - Managing SNMP Settings - Specifying SNMP Ports for NerveCenter -
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Specifying SNMP Ports for NerveCenter

NerveCenter has two primary sources of information about network conditions:

• NerveCenter listens passively for SNMP traps sent by a managed device.
• NerveCenter actively polls the SNMP agents on a managed device.

You can change the ports that NerveCenter uses for receiving traps and sending polls.

 
  To specify SNMP port settings for NerveCenter:

1. Open NerveCenter Administrator and connect to the appropriate NerveCenter Server. See Connecting Administrator to a NerveCenter Server.
2. Select the Ports tab.

   The Ports page is displayed.

   The Ports Page in NerveCenter Administrator

   

3. In the SNMP Poll field, enter the number of the port you want NerveCenter to use to communicate with SNMP agents. This port is used to get or set SNMP information.

   The value entered here specifies the port on the node to which NerveCenter sends SNMP polls. You can change the port for any particular node in the node's definition window in NerveCenter Client.

   It is suggested that you keep the default port number 161.

4. In the SNMP Trap field, enter the number of the port you want NerveCenter to use for receiving SNMP traps. This setting has no effect if NerveCenter is co-resident with HP OpenView Network Node Manager. OpenView has the trap port and an internal NerveCenter process enables NerveCenter to receive a copy of the trap.

   The default port number is 162.

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   Note    You must shut down and restart the NerveCenter Server before the SNMP Trap port change takes effect.
   
   If you want to capture SNMP v3 traps, the SNMP Trap port must be free for NerveCenter to capture the traps. This requires that you shut down MS Trap service or OVTrapD. If both are on your system, shut down both.

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5. Select Save.

NerveCenter will handle SNMP data according to these settings.