Configuring Mib Data To Be Persistent - Cisco ASR 9000 Series User Configuration Manual

Configuring MIB Data to be Persistent

Command or Action
Example:
RP/0/RSP0/CPU0:router(config)# snmp-server dscp 24
Step 3
commit
Configuring MIB Data to be Persistent
Many SNMP MIB definitions define arbitrary 32-bit indices for their object tables. MIB implementations
often do a mapping from the MIB indices to some internal data structure that is keyed by some other set of
data. In these MIB tables the data contained in the table are often other identifiers of the element being
modelled. For example, in the ENTITY-MIB, entries in the entPhysicalTable are indexed by the 31-bit value,
entPhysicalIndex, but the entities could also be identified by the entPhysicalName or a combination of the
other objects in the table.
Because of the size of some MIB tables, significant processing is required to discover all the mappings from
the 32-bit MIB indices to the other data which the network management station identifies the entry. For this
reason, it may be necessary for some MIB indices to be persistent across process restarts, switchovers, or
device reloads. The ENTITY-MIB entPhysicalTable and CISCO-CLASS-BASED-QOS-MIB are two such
MIBs that often require index values to be persistent.
Also, because of query response times and CPU utilization during CISCO-CLASS-BASED-QOS-MIB statistics
queries, it is desirable to cache service policy statistics.
SUMMARY STEPS
1. (Optional) snmp-server entityindex persist
2. (Optional) snmp-server mibs cbqosmib persist
3. (Optional) snmp-server cbqosmib cache refresh time time
4. (Optional) snmp-server cbqosmib cache service-policy count count
5. snmp-server ifindex persist
DETAILED STEPS
Command or Action
Step 1
snmp-server entityindex persist
Example:
RP/0/RSP0/CPU0:router(config)# snmp-server entityindex
persist
Cisco ASR 9000 Series Aggregation Services Router System Management Configuration Guide, Release 5.1.x
372
Purpose
Purpose
(Optional)
Enables the persistent storage of ENTITY-MIB data.
Implementing SNMP