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16.10.2 HC-RMON-MIB Support
16.10.1.2 Row Creation in cMediaIndependentHistoryControlTable
SNMP row creation and deletion for the cMediaIndependentHistoryControlTable follows the same
processes as for the MediaIndependentTable; only the variables differ. In order to create a row, the
SetRequest PDU should contain the following:
•
•
•
16.10.2 HC-RMON-MIB Support
For the ONS 15454, the implementation of the high-capacity remote monitoring information base
(HC-RMON-MIB, or RFC 3273) enables 64-bit support of existing RMON tables. This support is
provided with the etherStatsHighCapacityTable and the etherHistoryHighCapacityTable. An additional
table, the mediaIndependentTable, and an additional object, hcRMONCapabilities, are also added for
this support. All of these elements are accessible by any third-party SNMP client should have the ability
to upload RFC 3273 SNMP MIB variables in the etherStatsHighCapacityTable,
etherHistoryHighCapacityTable, or mediaIndependentTable.
16.10.3 Ethernet Statistics RMON Group
The Ethernet Statistics group contains the basic statistics monitored for each subnetwork in a single table
called the etherStatsTable.
16.10.3.1 Row Creation in etherStatsTable
The SetRequest PDU for creating a row in this table contains all needed values to activate a table row in
a single operation as well as assign the status variable to createRequest. The SetRequest PDU OID)
entries must have an instance value, or type OID, of 0.
In order to create a row, the SetRequest PDU should contain the following:
•
•
•
The etherStatsTable creates a row if the SetRequest PDU is valid according to these rules. The SNMP
agent decides the value of etherStatsIndex when the row is created and this value changes when an
Ethernet interface is added or deleted; it is not sequentially allotted or contiguously numbered. A newly
created row will have an etherStatsStatus value of valid (1). If the etherStatsTable row already exists, or
if the SetRequest PDU values are insufficient or do not make sense, the SNMP agent returns an error
code.
EtherStatsTable entries are not preserved if the SNMP agent is restarted.
Note
Cisco ONS 15454 Reference Manual, R8.5
16-18
cMediaIndependentHistoryControlDataSource and its desired value
cMediaIndependentHistoryControlOwner and its desired value
cMediaIndependentHistoryControlStatus with a value of createRequest (2)
The etherStatsDataSource and its desired value
The etherStatsOwner and its desired value (up to 32 characters)
The etherStatsStatus with a value of createRequest (2)
Chapter 16
SNMP
78-18106-01
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