CISCO-WAN-AXIPOP-MIB :: x21LineSendCode

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsCISCO-WAN-AXIPOP-MIBx21LineSendCode

x21LineSendCode

Module: CISCO-WAN-AXIPOP-MIB

OID (symbolic): CISCO-WAN-AXIPOP-MIB::x21LineSendCode

OID (numeric): 1.3.6.1.4.1.351.110.4.5.1.1.1.6

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-write

Description: This variable indicates what type of code is being sent across the X.21/HSSI interface by the device. The values mean:

x21NoCode: No loopback.

x21SendLoopACode: Start sending Loop A code. Valid only if the backcard is HSSI and the line-type is DTE. This command loops the line module of the remote device.

x21SendLoopBCode: Start sending Loop B code. Valid only if the backcard is HSSI and the line-type is DTE. This command loops the digital section of the remote device.

x21SendLocalLoopCode: Start sending CCITT X.21 Loopback Type 3 code. This is valid only if the backcard is X.21 type.

x21SendRemoteLoopCode: Start sending CCITT X.21 Loopback Type 2 code. This is valid only if the backcard is X.21 type.

x21SendUnLoopCode: Sending a loopback termination request. Valid for both HSSI and X.21 lines.

To execute any of the loop-codes the x21LineLoopbackCommand should be set to x21RemoteLoop. Once the x21SendUnLoopCode succeeds the x21LineLoopbackCommand would transition back to x21NoLoop state.

Default is x21NoCode.

What is x21LineSendCode?

This read-write object indicates what type of loopback code the device is sending across the X.21/HSSI interface, with options such as Loop A code and Loop B code that are valid only when the backcard is HSSI in DTE mode, used to remotely loop the far-end device's line module. An administrator uses this to initiate an in-band loopback request toward remote equipment rather than looping the local line itself. For example, an engineer wanting to verify the health of a remote device's line module without physical access would set this object to send Loop A code and check for a successful loop response.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.351.110.4.5.1.1.1.6
snmpwalk -v2c -c public <target> CISCO-WAN-AXIPOP-MIB::x21LineSendCode

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.351.110.4.5.1.1.1.6.1
snmpget -v2c -c public <target> CISCO-WAN-AXIPOP-MIB::x21LineSendCode.1

Set instance 1 (SNMPv2c):

snmpset -v2c -c private <target> 1.3.6.1.4.1.351.110.4.5.1.1.1.6.1 i <value>

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OID Breakdown

Upper-level ancestors (10 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
1.3.6.1.4.1.351stratacomCISCOWAN-SMI
1.3.6.1.4.1.351.110basisBASIS-MIB
1.3.6.1.4.1.351.110.4basisLinesBASIS-MIB
1.3.6.1.4.1.351.110.4.5x21BASIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.351.110.4.5.1x21CnfGrpCISCO-WAN-AXIPOP-MIB
1.3.6.1.4.1.351.110.4.5.1.1x21CnfGrpTableCISCO-WAN-AXIPOP-MIB
1.3.6.1.4.1.351.110.4.5.1.1.1x21CnfGrpEntryCISCO-WAN-AXIPOP-MIB
1.3.6.1.4.1.351.110.4.5.1.1.1.6x21LineSendCodeCISCO-WAN-AXIPOP-MIB