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11.1.6 SNMP
The DSC clock supports SNMP version 2c notifications and parameter reading
and setting by means of SNMP GET and SET commands. This allows
to integrate the clock to a network management system. The DSC clock (SNMP
agent) can send alarm notifications and alive notifications to a SNMP manager.
The IP address of the SNMP manager can be provided to the clock by DHCP,
Telnet, SNMP or the MOBA-NMS. The structure of supported parameters is
defined in a MIB file (refer to document TE-800728 for details). In addition the
clock supports the “system” node parameters defined by MIB-2 (RFC-1213)
Alarm notifications are asynchronous messages and are used to inform the
manager about the appearance / disappearance of alarms.
Alive notifications are sent out periodically to report availability and state of the
clock. The interval time can be configured.
SNMP community strings:
read community
romobatime
read / write community
rwmobatime
notification (trap) community
trapmobatime
11.2 Multicast mode
The clock is synchronized to UTC (Universal Time Coordinated) from a NTP
server. The clock receives NTP multicast packets transmitted by the NTP server
in a specified time cycle. This type of synchronization requires no clock’s own IP
address and is therefore suitable for an easy commissioning of the large
systems of slave clocks. Further this mode supports monitoring and parameter
configuration by means of MOBA-NMS software.
For supervision and configuration with MOBA-NMS the multicast group address
can be used or the multicast group address having last octet cleared to zero.
The Multicast operating mode signifies only a minimum amount of configuration
work for a network administrator.
It is necessary to set apropriate time-zone for correct displaying of local time and
date – see the chapter 9 for details.
Default network parameters:
IPv4 multicast group address
239.192.54.1
IPv4 multicast config address
239.192.54.0
IPv6 multicast group address
FF38::EFC0:3601 (FF38::239.192.54.1)
IPv6 multicast config address
FF38::EFC0:3600
(FF38::239.192.54.0)
configuration port number
65532
time zone client port number
65534
The menu item
P19
must be set to value
1
. See chapter 4.2.7 for setting the IPv4
multicast group address in the item
P23
submenu.
