Maintenance and Troubleshooting
BV1250 Technical Reference
Page 14
Revision 1.0
3. Trap Information Sent to NMS
A Trap is one of the signals included in the Simple Network Management Protocol
(SNMP). In the case of the BV1250, a trap signal is sent to a Network
Management System (NMS) when a fault is detected in the unit. The trap
information is recorded in an NMS trouble log which, when retrieved by
maintenance personnel, can be useful in diagnosing and correcting problems with
the BV1250 unit.
The trap signal is sent to an NMS when an abnormality in the equipment or a
change in status is detected by the BV1250 unit’s software. If the fault is of a
critical nature, the equipment reboot processing is automatically started before
sending the trap. When this occurs, the unit sends the trap message to the NMS
during the system reboot.
A trap message is output using the fields shown in Table 3-1:
Table 3-1: Trap messages
Field
Type
Value
Version
INTEGER
O(SNMP-Version1)
community
OCTET STRING
“public”
enterprise
OBJECT INDENTIFIER
Object ID of BV1250
agent-addr
NETWORK ADDRESS
IP address of BV1250
generic-trap
INTEGER
0(coldStart)
6(enterpriseSpecific)
specific-trap
INTERGER
Fault number
time-stamp
TimeTicks
Time elapsed
variable-bindings
VarBindList
NULL
community:
The community name value is configured in the BV1250
unit’s office data file (OFDD.VHO). The default value
in the OFDD.VHO file is “public”.
enterprise value:
The enterprise value shows the object ID for a BV1250
unit, e.g. 1.3.6.1.4.1.666.90.3.3.1).
generic-trap:
The cold start (coldStart) after the system startup causes
the trap value to be output as a generic-trap which is
displayed as 0. Messages other than this generic output,
such as fault, recovery, and report messages, are output
as the enterprise Specific trap value which is displayed as
a generic trap equal to 6.
Summary of Contents for BV1250
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