Row Creation In Historycontroltable - Cisco ONS 15454 DWDM Reference Manual

Chapter 18 SNMP

18.11.4.2 Row Creation in historyControlTable

The SetRequest PDU must be able to activate a historyControlTable row in one single-set operation. In
order to do this, the PDU must contain all needed values and have a status variable value of 2
(createRequest). All OIDs in the SetRequest PDU should be type OID.0 type for entry creation.
To create a SetRequest PDU for the historyControlTable, the following values are required:
•
•
•
•
•
The historyControlBucketsRequested OID value is ignored because the number of buckets allowed for
each sampling period, based upon the historyControlInterval value, is already fixed.
these variables.
The historyControlInterval value cannot be changed from the four allowed choices. If you use another
value, the SNMP agent selects the closest smaller time period from the set buckets. For example, if the
set request specifies a 25-minute interval, this falls between the 15-minute (32 bucket) variable and the
60-minute (24 bucket) variable. The SNMP agent automatically selects the lower, closer value, which is
15 minutes, so it allows 32 buckets.
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.
18.11.4.3 Get Requests and GetNext Requests
These PDUs are not restricted.
18.11.4.4 Row Deletion in historyControl Table
To delete a row from the table, the SetRequest PDU should contain a historyControlStatus value of 4
(invalid). A deleted row can be recreated.
18.11.5 Ethernet History RMON Group
The ONS 15454 implements the etherHistoryTable as defined in RFC 2819. The group is created within
the bounds of the historyControlTable and does not deviate from the RFC in its design.
18.11.5.1 64-Bit etherHistoryHighCapacityTable
64-bit Ethernet history for the HC-RMON-MIB is implemented in the etherHistoryHighCapacityTable,
which is an extension of the etherHistoryTable. The etherHistoryHighCapacityTable adds four columns
for 64-bit performance monitoring data. These two tables have a one-to-one relationship. Adding or
deleting a row in one table will also change the other.
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The historyControlDataSource and its desired value
The historyControlBucketsRequested and it desired value
The historyControlInterval and its desired value
The historyControlOwner and its desired value
The historyControlStatus with a value of createRequest (2)
18.11.5 Ethernet History RMON Group
Cisco ONS 15454 DWDM Reference Manual, R8.5
Table 18-9 lists
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