Siemens 9410DC, Руководство пользователя, Страница: 68 / 172

9410 series Communications
Community strings
A community string is a text string which acts to help authenticate requests from the
NMS to your meter.
There are two community strings on your meter:
• Read Only Community: this community string is used by SNMP get (read-only)
requests. The read only community string’s initial factory-set value is
public .
• Read Write Community: this community string is used by SNMP set (read/write)
requests. The read write community string’s initial factory-set value is
private .
NOTE: You can also use the read write community string for SNMP get (read-only)
requests.
If your meter receives an incorrect community string, it generates an
AuthenticationFailure trap.
System strings
A system string is a text string which can be configured to provide information about
your meter.
There are three system strings on your meter:
• System contact: enter the name of the SNMP system administrator.
• System name: enter a descriptive name for your meter.
• System location: enter a description of your meter’s location.
SNMP trapping
SNMP trapping allows your meter’s agent to notify the NMS of events with an
unsolicited SNMP message (a “trap” of the meter’s alarm event).
You can enter up to four IP addresses for SNMP trap notification for generic and
enterprise-specific traps. For enterprise traps, you must also define the number of
events or maximum time delay before SNMP traps are sent to the NMS.
SNMP trapping is only supported on SNMP v2.
SNMP trapping implementation
Generic SNMP traps supported by your meter are:
• Coldstart: the meter (SNMP agent) is starting.
• Linkup: the SNMP agent is enabled.
• AuthenticationFailure: the meter (SNMP agent) has received an incorrect
community value.
Enterprise-specific SNMP traps supported by your meter are:
• Low: trap of events with a low event priority.
• Medium: trap of events with a medium event priority.
• High: trap of events with a high event priority.
Trap Event priority range
Low 64–127
Medium 128–191
High 192–255
68 7EN05-0336-01