Cisco Cisco IOS Software Release 12.0(22)S
E F T 2 D R A F T - C I S C O C O N F I D E N T I A L
SNMP for Stateful Switchover
Feature Overview
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Cisco IOS Release 12.0(22)S
SSO MIB Support
This section describes the level of synchronization supported by the MIBs Cisco IOS release 12.0(22)S.
MIBs that are not listed in this section do not synchronize data between the redundant units. MIB
synchronization for SSO only occurs when the system is in SSO mode.
MIBs that are not listed in this section do not synchronize data between the redundant units. MIB
synchronization for SSO only occurs when the system is in SSO mode.
SSO MIB support has three parts:
•
SNMP Configuration MIBs
•
Core MIBs
•
CISCO-RF-MIB
SNMP Configuration MIBs
All the objects in the following MIBs that contain SNMP configuration data are synchronized between
the active and standby RPs:
the active and standby RPs:
•
SNMP-FRAMEWORK-MIB
•
SNMP-TARGET-MIB
•
SNMP-USM-MIB
•
SNMP-VACM-MIB
•
SNMPv2-MIB
Core MIBs
Core MIBs are as follows:
•
ENTITY-MIB—After a switchover, there will be no change in the data reported by the
ENTITY-MIB object. This lack of change is result of the entPhysicalIndex and its associated objects
being synchronized between the active and the standby RPs. The associated objects of the
entPhysicalIndex are as follows:
ENTITY-MIB object. This lack of change is result of the entPhysicalIndex and its associated objects
being synchronized between the active and the standby RPs. The associated objects of the
entPhysicalIndex are as follows:
–
entPhysicalAlias
–
entPhysicalSerialNum
–
entPhysicalAssetID
–
entLastChangeTime
•
IF-MIB—The ifIndex is synchronized between the active and standby RPs, along with the
ifNumber, ifTableLastChange, ifAdminStatus, ifLinkUpDownTrapEnable, ifAlias, ifLastChange,
and ifStackLastChange objects.
ifNumber, ifTableLastChange, ifAdminStatus, ifLinkUpDownTrapEnable, ifAlias, ifLastChange,
and ifStackLastChange objects.
CISCO-RF-MIB Support
The CISCO-RF-MIB provides configuration control and status for the redundancy facility (RF)
subsystem. The CISCO-RF-MIB has been modified to support SSO functionality. A new cRFHistory
subgroup has been added in this release. The subgroup consists of one table
(cRFHistorySwitchOverTable) and three objects (cRFHistoryTableMaxLength, cRFHistoryColdStarts,
and cRFHistoryStandbyAvailTime), as follows:
subsystem. The CISCO-RF-MIB has been modified to support SSO functionality. A new cRFHistory
subgroup has been added in this release. The subgroup consists of one table
(cRFHistorySwitchOverTable) and three objects (cRFHistoryTableMaxLength, cRFHistoryColdStarts,
and cRFHistoryStandbyAvailTime), as follows: