All MIBs › CISCOSB-rlInterfaces › rlIfFirstLoopbackIfIndex
rlIfFirstLoopbackIfIndex
Module: CISCOSB-rlInterfaces
OID (symbolic): CISCOSB-rlInterfaces::rlIfFirstLoopbackIfIndex
OID (numeric): 1.3.6.1.4.1.9.6.1.101.54.8
Node type: OBJECT-TYPE
Type: INTEGER
Access: read-only
Description: First ifIndex of loopback port. This scalar will exists only if rlIfNumOfLoopbackPorts is different from 0.
What is rlIfFirstLoopbackIfIndex?
This read-only INTEGER reports the ifIndex of the first loopback port, and per the description this scalar only exists if rlIfNumOfLoopbackPorts is nonzero. Admins use it to programmatically locate the loopback interface for scripting or automated configuration purposes without hardcoding an assumed index. For example, an automation script configuring a routing protocol's source address would query this OID to find the correct loopback ifIndex to bind to, rather than guessing.
Examples
Walk all instances (SNMPv2c):
snmpwalk -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.54.8 snmpwalk -v2c -c public <target> CISCOSB-rlInterfaces::rlIfFirstLoopbackIfIndex
Get a specific instance (index 1):
snmpget -v2c -c public <target> 1.3.6.1.4.1.9.6.1.101.54.8.1 snmpget -v2c -c public <target> CISCOSB-rlInterfaces::rlIfFirstLoopbackIfIndex.1
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OID Breakdown
Upper-level ancestors (11 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 |
| 1.3.6.1.4.1.9.6 | otherEnterprises | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1 | ciscoSB | CISCO-SMI |
| 1.3.6.1.4.1.9.6.1.101 | switch001 | CISCOSB-MIB |
| 1.3.6.1.4.1.9.6.1.101.54 | rlIfInterfaces | CISCOSB-MIB |
| Numeric OID | Name | Module |
|---|---|---|
| 1.3.6.1.4.1.9.6.1.101.54.8 | rlIfFirstLoopbackIfIndex | CISCOSB-rlInterfaces |