COPPER-MOUNTAIN-NETWORKS-DSL-MIB :: cmCpeDataPortLoopbackConfig

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCOPPER-MOUNTAIN-NETWORKS-DSL-MIBcmCpeDataPortLoopbackConfig

cmCpeDataPortLoopbackConfig

Module: COPPER-MOUNTAIN-NETWORKS-DSL-MIB

OID (symbolic): COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmCpeDataPortLoopbackConfig

OID (numeric): 1.3.6.1.4.1.1996.10.12.1.1.21

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: Loopback configuration state of the port.

What is cmCpeDataPortLoopbackConfig?

This read-write enumerated INTEGER (noLoop, localLoop) sets the loopback configuration state of the port. An admin sets this to localLoop to run a diagnostic test isolating the CPE's own data port from the customer's equipment, then sets it back to noLoop to restore normal service. For example, setting this to localLoop while a technician checks whether frames sent by the head end are echoed back correctly confirms the CPE's serial interface itself is functioning before blaming the customer's equipment.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.1996.10.12.1.1.21
snmpwalk -v2c -c public <target> COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmCpeDataPortLoopbackConfig

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.1996.10.12.1.1.21.1
snmpget -v2c -c public <target> COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmCpeDataPortLoopbackConfig.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.1996.10.12.1.1.21.1 i <value>

Start monitoring Copper Mountain Networks DSL access equipment (legacy) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the COPPER-MOUNTAIN-NETWORKS-DSL-MIB::cmCpeDataPortLoopbackConfig OID value, configure state conditions and alerts, and monitor any Copper Mountain Networks DSL access equipment (legacy) from a single console.

OID Breakdown

Upper-level ancestors (6 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
Numeric OIDNameModule
1.3.6.1.4.1.1996coppermountainCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.10cmTransmissionCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.10.12cmDataPortCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.10.12.1cmCpeDataPortTableCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.10.12.1.1cmCpeDataPortEntryCOPPER-MOUNTAIN-NETWORKS-DSL-MIB
1.3.6.1.4.1.1996.10.12.1.1.21cmCpeDataPortLoopbackConfigCOPPER-MOUNTAIN-NETWORKS-DSL-MIB