Cisco Cisco ONS 15454 M6 Multiservice Transport Platform (MSTP)
EtherStatsTable entries are not preserved if the SNMP agent is restarted.
Note
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 15454 Ethernet cards.
the variables are not supported by ONS 15454 Ethernet cards.
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.
the row for deletion. If required, a deleted row can be recreated.
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.
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.
History Control RMON 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.
this table, as specified in RFC 2819, are derived from the historyControlTable and etherHistoryTable.
History Control Table
The RMON is sampled at one of four possible intervals. Each interval or period contains specific history values (also called buckets).
The historyControlTable maximum row size is determined by multiplying the number of ports on a card by the number of sampling
periods. For example, a card that contains 24 ports when multiplied by periods allows 96 rows in the table. A card that contains 14
ports when multiplied by four periods allows 56 table rows. The following table lists the four sampling periods and corresponding
buckets.
periods. For example, a card that contains 24 ports when multiplied by periods allows 96 rows in the table. A card that contains 14
ports when multiplied by four periods allows 56 table rows. The following table lists the four sampling periods and corresponding
buckets.
Table 10: RMON History Control Periods and History Categories
(historyControl Variable)
Sampling Periods
(historyControlValue Variable) Total Values or Buckets
(historyControlValue Variable) Total Values or Buckets
32
15 minutes
7
24 hours
60
1 minute
24
60 minutes
37