All MIBs › CISCO-IF-EXTENSION-MIB › cieIfIndexPersistence
cieIfIndexPersistence
Module: CISCO-IF-EXTENSION-MIB
OID (symbolic): CISCO-IF-EXTENSION-MIB::cieIfIndexPersistence
OID (numeric): 1.3.6.1.4.1.9.9.276.1.2.4
Node type: OBJECT-TYPE
Type: TruthValue
Access: read-write
Description: This object specifies whether ifIndex values persist across reinitialization of the device.
ifIndex persistence means that the mapping between the ifDescr object values and the ifIndex object values will be retained across reboots.
Applications such as device inventory, billing, and fault detection depend on the maintenance of the correspondence between particular ifIndex values and their interfaces. During reboot or insertion of a new card, the data to correlate the interfaces to the ifIndex may become invalid in absence of ifIndex persistence feature.
ifIndex persistence for an interface ensures ifIndex value for the interface will remain the same after a system reboot. Hence, this feature allows users to avoid the workarounds required for consistent interface identification across reinitialization.
Due to change in syntax, this object is deprecated by cieIfIndexGlobalPersistence.
What is cieIfIndexPersistence?
This read-write object controls whether an interface's ifIndex-to-ifDescr mapping is retained across device reboots, so applications relying on stable interface numbering aren't disrupted by reinitialization.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.9.276.1.2.4 snmpwalk -v2c -c public <target> CISCO-IF-EXTENSION-MIB::cieIfIndexPersistence
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.9.276.1.2.4.1 snmpget -v2c -c public <target> CISCO-IF-EXTENSION-MIB::cieIfIndexPersistence.1
Set instance 1 (SNMPv2c):
snmpset -v2c -c private <target> 1.3.6.1.4.1.9.9.276.1.2.4.1 s <value>
Start monitoring Cisco routers and switches with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the CISCO-IF-EXTENSION-MIB::cieIfIndexPersistence OID value, configure state conditions and alerts, and monitor any Cisco routers and switches from a single console.
OID Breakdown
Upper-level ancestors (8 from the standard OID tree / other modules)
| Numeric OID | Name | Module |
|---|---|---|
| 1 | iso | LANART-AGENT |
| 1.3 | org | AirPair-MIB |
| 1.3.6 | dod | AirPair-MIB |
| 1.3.6.1 | internet | AirPair-MIB |
| 1.3.6.1.4 | private | AirPair-MIB |
| 1.3.6.1.4.1 | enterprises | AirPair-MIB |
| 1.3.6.1.4.1.9 | cisco | CAT2600-MIB |
| 1.3.6.1.4.1.9.9 | ciscoMgmt | CISCO-SMI |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.9.276 | ciscoIfExtensionMIB | CISCO-IF-EXTENSION-MIB |
| 1.3.6.1.4.1.9.9.276.1 | ciscoIfExtensionMIBObjects | CISCO-IF-EXTENSION-MIB |
| 1.3.6.1.4.1.9.9.276.1.2 | ciscoIfExtSystemConfig | CISCO-IF-EXTENSION-MIB |
| 1.3.6.1.4.1.9.9.276.1.2.4 | cieIfIndexPersistence | CISCO-IF-EXTENSION-MIB |