Network Router User Manual

A-13
Cisco 7304 Router MIB Specifications Guide
OL-4925-02
Appendix A Using MIBs
Managing Router Physical Entities
• snmpTargetParamsTable—SNMP parameters to use when generating SNMP notifications.
Use the notification enable objects in appropriate MIBs to enable and disable specific SNMP traps.
For example, to generate mplsLdpSessionUp or mplsLdpSessionDown traps, the MPLS-LDP-MIB
object mplsLdpSessionUpDownTrapEnable must be set to enabled(1).
Configuration Changes
If entity traps are enabled, the router generates an entConfigChange trap (ENTITY-MIB) when the
information in any of the following tables changes (which indicates a change to the router configuration):
• entPhysicalTable
• entAliasMappingTable
• entPhysicalContainsTable
Note A management application that tracks configuration changes should occasionally check the value of
entLastChangeTime (ENTITY-MIB) to detect any entConfigChange traps that were missed due to
throttling or transmission loss.
Enabling Traps for Configuration Changes
To configure the router to generate an entConfigChange trap whenever its configuration changes, enter the
following command from the CLI. Use the no form of the command to disable the traps.
Router(config)# snmp-server enable traps entity
Router(config)# no snmp-server enable traps entity
Environmental Conditions
The CISCO-ENVMON-MIB sends the following notifications to alert you to conditions detected by
environmental sensors in the router:
• ciscoEnvMonShutdownNotification—Sent when the router is about to shut down.
• ciscoEnvMonTemperatureNotification—Sent when a temperature is outside its normal range.
• ciscoEnvMonRedundantSupplyNotification—Sent when a redundant Power Entry Module fails.
Enabling Environmental Traps
To configure the router to generate traps for environmental conditions, enter the following command
from the CLI. Use the no form of the command to disable the traps.
Router(config)# snmp-server enable traps envmon
Router(config)# no snmp-server enable traps envmon
To enable environmental traps through SNMP, set the appropriate notification enable object to true(1).
For example, ciscoEnvMonEnableShutdownNotification enables shutdown notifications. Disable the
traps by setting the notification object to false(2).
FRU Status Changes
If FRU traps are enabled, the router generates the following traps in response to changes in the status of
an FRU. See the CISCO-ENTITY-FRU-CONTROL-MIB for more information about these traps.
• cefcModuleStatusChange—The operational status (cefcModuleOperStatus) of an FRU changes.