Snmp Traps; Table 11-3 Snmp Trap Variable Bindings Used In Ons 15327 - Cisco ONS 15327 User Documentation

Chapter 11 SNMP

11.5 SNMP Traps

The ONS 15327 can receive SNMP requests from a number of SNMP managers and send traps to eleven
trap receivers. The ONS 15327 generates all alarms and events as SNMP traps.
The ONS 15327 generates traps containing an object ID that uniquely identifies the alarm. An entity
identifier uniquely identifies the entity that generated the alarm (slot, port, STS, VT, BLSR, STP, etc.).
The traps give the severity of the alarm (critical, major, minor, event, etc.) and indicate whether the alarm
is service affecting or non-service affecting. The traps also contain a date/time stamp that shows the date
and time the alarm occurred. The ONS 15327 also generates a trap for each alarm when the alarm
condition clears.
Each SNMP trap contains eleven variable bindings listed in

Table 11-3 SNMP Trap Variable Bindings Used in ONS 15327

Number
1
2
3
4
5
6
7
8
9
June 2002
Name
cerentGenericAlarmTable
cerentGenericAlarmIndex
cerentGenericAlarmObjectType
cerentGenericAlarmSlotNumber
cerentGenericAlarmPortNumber
cerentGenericAlarmLineNumber
cerentGenericAlarmObjectIndex
cerentGenericAlarmType
cerentGenericAlarmState
Table 11-3 for the ONS 15327.
Description
This table holds all the currently raised alarms.
When an alarm is raised, it appears as a new entry in
the table. When an alarm is cleared, it is removed
from the table and all subsequent entries move up by
one row.
This variable uniquely identifies each entry in an
alarm table. When an alarm in the alarm table clears,
the alarm indexes change for each alarm located
subsequent to the cleared alarm.
This variable provides the entity type that raised the
alarm. The NMS should use this value to decide
which table to poll for further information about the
alarm.
This variable indicates the slot of the object that
raised the alarm. If a slot is not relevant to the alarm,
the slot number is zero.
This variable provides the port of the object that
raised the alarm. If a port is not relevant to the
alarm, the port number is zero.
This variable provides the object line that raised the
alarm. If a line is not relevant to the alarm, the line
number is zero.
Every alarm is raised by an object entry in a specific
table. This variable is the index of the objects in
each table; if the alarm is interface related, this is
the index of the interfaces in the interface table.
This variable provides the exact alarm type.
This variable specifies alarm severity and
service-affecting status. Severities are minor, major
and critical. Service-affecting statuses are
service-affecting and non-service affecting.
Cisco ONS 15327 User Documentation, R3.3
SNMP Traps
11-5