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Chapter 16
SNMP
16.10.6.1 Alarm Table
The NMS uses the alarmTable to determine and provision network performance alarmable thresholds.
16.10.6.2 Row Creation in alarmTable
To create a row in the alarmTable, all OIDs in the SetRequest PDU should be type OID.0. The table has
a maximum number of 256 rows.
To create a SetRequest PDU for the alarmTable, the following values are required:
•
•
•
•
•
•
If the SetRequest PDU is valid, a historyControlTable row is created. If the row already exists, or if the
SetRequest PDU values do not make sense or are insufficient, the SNMP agent does not create the row
and returns an error code.
In addition to the required values, the following restrictions must be met in the SetRequest PDU:
•
•
•
•
•
Table 16-10
No. Column Name
1
2
3
4
5
6
7
8
9
10
11
12
13
78-18106-01
The alarmInterval and its desired value
The alarmVariable and its desired value
The alarmSampleType and its desired value
The alarmStartupAlarm and its desired value
The alarmOwner and its desired value
The alarmStatus with a value of createRequest (2)
The alarmOwner is a string of length 32 characters.
The alarmRisingEventIndex always takes value 1.
The alarmFallingEventIndex always takes value 2.
The alarmStatus has only two values supported in SETs: createRequest (2) and invalid (4).
The AlarmVariable is of the type OID.ifIndex, where ifIndex gives the interface this alarm is created
on and OID is one of the OIDs supported in
OIDs Supported in the AlarmTable
ifInOctets
IfInUcastPkts
ifInMulticastPkts
ifInBroadcastPkts
ifInDiscards
ifInErrors
ifOutOctets
ifOutUcastPkts
ifOutMulticastPkts
ifOutBroadcastPkts
ifOutDiscards
Dot3StatsAlignmentErrors
Dot3StatsFCSErrors
Table
16-10.
OID
{1.3.6.1.2.1.2.2.1.10}
{1.3.6.1.2.1.2.2.1.11}
{1.3.6.1.2.1.31.1.1.1.2}
{1.3.6.1.2.1.31.1.1.1.3}
{1.3.6.1.2.1.2.2.1.13}
{1.3.6.1.2.1.2.2.1.14}
{1.3.6.1.2.1.2.2.1.16}
{1.3.6.1.2.1.2.2.1.17}
{1.3.6.1.2.1.31.1.1.1.4}
{1.3.6.1.2.1.31.1.1.1.5}
{1.3.6.1.2.1.2.2.1.19}
{1.3.6.1.2.1.10.7.2.1.2}
{1.3.6.1.2.1.10.7.2.1.3}
Cisco ONS 15454 Reference Manual, R8.5
16.10.6 Alarm RMON Group
Status
—
—
Unsupported in E100/E1000
Unsupported in E100/E1000
Unsupported in E100/E1000
—
—
—
Unsupported in E100/E1000
Unsupported in E100/E1000
Unsupported in E100/E1000
—
—
16-21
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