PORT-MIB :: tdmIoDS1PortLoopbackLlbActCodeLen

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › PORT-MIB › tdmIoDS1PortLoopbackLlbActCodeLen

tdmIoDS1PortLoopbackLlbActCodeLen

Module: PORT-MIB

OID (symbolic): PORT-MIB::tdmIoDS1PortLoopbackLlbActCodeLen

OID (numeric): 1.3.6.1.4.1.5812.3.4.1.13

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Length of user code to enable Automatic Remote Loopback(ARL)

What is tdmIoDS1PortLoopbackLlbActCodeLen?

This sets the bit length (5, 6, 7, or 8 bits) of the code used to activate Automatic Remote Loopback, matching the length expected alongside tdmIoDS1PortLoopbackLLbActCode. Different equipment vendors use different code lengths for ARL signaling, so this must match what the far end expects. An admin configuring inter-vendor DS1 loopback testing would need to align both the code value and its length.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.5812.3.4.1.13
snmpwalk -v2c -c public <target> PORT-MIB::tdmIoDS1PortLoopbackLlbActCodeLen

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.5812.3.4.1.13.1
snmpget -v2c -c public <target> PORT-MIB::tdmIoDS1PortLoopbackLlbActCodeLen.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.5812.3.4.1.13.1 i <value>

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> tdmIoDS1PortLoopbackLlbActCodeLen.1

Start monitoring Coriolis Networks optical switch/chassis line cards (per-port optical status) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the PORT-MIB::tdmIoDS1PortLoopbackLlbActCodeLen OID value, configure state conditions and alerts, and monitor any Coriolis Networks optical switch/chassis line cards (per-port optical status) from a single console.

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
1.3.6.1.4.1.5812.3.4.1.13tdmIoDS1PortLoopbackLlbActCodeLenPORT-MIB