PORT-MIB :: tdmIoDS1PortLoopbackState

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › PORT-MIB › tdmIoDS1PortLoopbackState

tdmIoDS1PortLoopbackState

Module: PORT-MIB

OID (symbolic): PORT-MIB::tdmIoDS1PortLoopbackState

OID (numeric): 1.3.6.1.4.1.5812.3.4.1.8

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: This object indicates the state of loopback on this interface. 'Idle' indicates that there is no loopback running and 'running' indicates that this interface is in loopback mode.

What is tdmIoDS1PortLoopbackState?

This reports whether the DS1 port currently has a loopback running: idle means no loopback is active, and running means the interface is presently looping traffic. An admin checks this to confirm a loopback test they initiated is actually in effect, or to detect that a port was accidentally left in loopback mode, which would explain why real traffic isn't passing through. It works together with tdmIoDS1PortLoopbackType, which specifies what kind of loopback is configured.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5812.3.4.1.8
snmpwalk -v2c -c public <target> PORT-MIB::tdmIoDS1PortLoopbackState

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5812.3.4.1.8.1
snmpget -v2c -c public <target> PORT-MIB::tdmIoDS1PortLoopbackState.1

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OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.5812coriolisMibsCORIOLIS-MIB
1.3.6.1.4.1.5812.3portCORIOLIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.5812.3.4tdmIoDS1PortTablePORT-MIB
1.3.6.1.4.1.5812.3.4.1tdmIoDS1PortEntryPORT-MIB
1.3.6.1.4.1.5812.3.4.1.8tdmIoDS1PortLoopbackStatePORT-MIB