DPS NetGuardian 832A, Руководство пользователя

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T/Mon RTU Time Sync Signal: You can configure your T/Mon NOC to send an RTU Time Sync
signal at a regular interval, which you can set to any time period between 10 and 10,080 minutes.
The Time Sync will automatically synchronize the NetGuardian's clock to the T/Mon's clock. And if
you set your T/Mon to NTP synchronization, you'll make sure you have consistent, accurate time
stamps throughout your monitoring network.
Q. How do I back up my NetGuardian configuration?
A.
There are two ways to back up NetGuardian configuration files:
Use NGEditG5
NGEditG5 can read the configuration of a NetGuardian unit connected to your PC via LAN, modem
or COM port. You can then use NGEditG5 to save a NetGuardian configuration file on your PC's hard
disk or on a floppy disk. With NGEditG5 you can also make changes to the configuration file and
write the changed configuration to the NetGuardian's NVRAM.
Use FTP
You can use File Transfer Protocol (FTP) to read and write configuration files to the NetGuardian's
NVRAM, but you can't use FTP to edit configuration files.
SNMP FAQs 15.2
Q. How do I configure the NetGuardian to send traps to an SNMP manager? Is there a separate
MIB for the NetGuardian? How many SNMP managers can the agent send traps to? And how
do I set the IP address of the SNMP manager and the community string to be used when
sending traps?
A. The NetGuardian begins sending traps as soon as the SNMP managers are defined. The
NetGuardian MIB is included on the NetGuardian Resource CD. The MIB should be compiled on your
SNMP manager. (
Note: MIB versions may change in the future.) The unit supports 2 SNMP
managers, which are configured by entering its IP address in the Trap Address field of Ethernet Port
Setup. You can also configure up to eight secondary SNMP managers, which is configured by
selecting the secondary SNMP managers as pager recipients. Community strings are configured
globally for all SNMP managers. To configure the community strings, choose System from the Edit
menu, and enter appropriate values in the Get, Set, and Trap fields.
Q. Does the NetGuardian support MIB-2 and/or any other standard MIBs?
A.
The NetGuardian supports the bulk of MIB-2.
Q. Does the NetGuardian SNMP agent support both NetGuardian and T/MonXM variables?
A.
The NetGuardian SNMP agent manages an embedded MIB that supports only the NetGuardian's
RTU variables. The T/MonXM variables are included in the distributed MIB only to provide SNMP
managers with a single MIB for all DPS Telecom products.
Q. How many traps are triggered when a single point is set or cleared? The MIB defines traps
like "major alarm set/cleared," "RTU point set," and a lot of granular traps, which could imply
that more than one trap is sent when a change of state occurs on one point.
A. Generally, a single change of state generates a single trap, but there are two exception to this rule.
Exception 1: the first alarm in an "all clear" condition generates an additional "summary point set"
trap. Exception 2: the final clear alarm that triggers an "all clear" condition generates an additional
"summary point clear" trap.
Q. What does "point map" mean?
A.
A point map is a single MIB leaf that presents the current status of a 64-alarm-point display in an
ASCII-readable form, where a "." represents a clear and an "x" represents an alarm.