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Cisco ONS 15310-MA SDH Reference Manual, Release 9.1 and Release 9.2
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Chapter 12 SNMP
SNMP Remote Monitoring
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.
Note EtherStatsTable entries are not preserved if the SNMP agent is restarted.

12.10.1.2 Get Requests and GetNext Requests

Get requests and getNext requests for the etherStatsMulticastPkts and etherStatsBroadcastPkts columns
return a value of zero because the variables are not supported by ONS 15310-MA SDH Ethernet
operations.

12.10.1.3 Row Deletion in etherStatsTable

To delete a row in the etherStatsTable, the SetRequest PDU should contain an etherStatsStatus “invalid”
value (4). The OID marks the row for deletion. If required, a deleted row can be recreated.

12.10.1.4 64-Bit etherStatsHighCapacity Table

The Ethernet statistics group contains 64-bit statistics in the etherStatsHighCapacityTable, which
provides 64-bit RMON support for the HC-RMON-MIB. The etherStatsHighCapacityTable is an
extension of the etherStatsTable that adds 16 new columns for performance monitoring data in 64-bit
format. There is a one-to-one relationship between the etherStatsTable and etherStatsHighCapacityTable
when rows are created or deleted in either table.
12.10.2 History Control Group
The History Control group defines sampling functions for one or more monitor interfaces in the
historyControlTable. The values in this table, as specified in RFC 2819, are derived from the
historyControlTable and etherHistoryTable.

12.10.2.1 History Control Table

The historyControlTable maximum row size is determined by multiplying the number of ports on a card
by the number of sampling periods.
Table 12-6 RMON History Control Periods and History Categories
Sampling Periods
(historyControlValue Variable)
Total Values, or Buckets
(historyControl Variable)
15 minutes 32
24 hours 7
1 minute 60
60 minutes 24