RFC1233-MIB :: ds3Loopback

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › RFC1233-MIB › ds3Loopback

ds3Loopback

Module: RFC1233-MIB

OID (symbolic): RFC1233-MIB::ds3Loopback

OID (numeric): 1.3.6.1.2.1.10.30.1.1.7

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: This variable represents the loopback state of the CSU. Devices supporting read/write access should return badValue in response to a requested loopback state that the CSU does not support. The values mean:

ds3NoLoop Not in the loopback state. A device that is not capable of performing a loopback on either interface shall always return this as it's value.

ds3LocalLoopbackLocalSide Signal received from the local side of the device is looped back at the local connector (eg, without involving the CSU).

ds3LocalLoopbackRemoteSide Signal received from the local side of the device is looped back at the remote connector (eg, through the CSU).

ds3RemoteLoopbackLocalSide Signal received from the remote side of the device is looped back at the local connector (eg, through the CSU).

ds3RemoteLoopbackRemoteSide Signal received from the remote side of the device is looped back at the remote connector (eg, without involving the CSU).

Note that M23 and ClearChannel interfaces do not support the Loopback managed object.

What is ds3Loopback?

Reports the CSU's current loopback test state, such as ds3NoLoop(1) for normal operation or one of the local/remote loopback variants used when an admin is isolating a DS3 circuit fault.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.10.30.1.1.7
snmpwalk -v2c -c public <target> RFC1233-MIB::ds3Loopback

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.10.30.1.1.7.1
snmpget -v2c -c public <target> RFC1233-MIB::ds3Loopback.1

SNMPv3 example:

snmpget -v3 -l authPriv -u snmpv3-user -a SHA -A "AuthPassword1" -x AES -X "PrivPassword1" <target> ds3Loopback.1

Start monitoring vendor-neutral, standards-based MIB (RFC 1233/1239), routers/CSU-DSUs/WAN cards terminating DS3/T3 circuits with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the RFC1233-MIB::ds3Loopback OID value, configure state conditions and alerts, and monitor any vendor-neutral, standards-based MIB (RFC 1233/1239), routers/CSU-DSUs/WAN cards terminating DS3/T3 circuits 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
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.10transmissionCHECKPOINT-MIB-2
1.3.6.1.2.1.10.30ds3DS3-MIB
Numeric OIDNameModule
1.3.6.1.2.1.10.30.1ds3ConfigTableRFC1233-MIB
1.3.6.1.2.1.10.30.1.1ds3ConfigEntryRFC1233-MIB
1.3.6.1.2.1.10.30.1.1.7ds3LoopbackRFC1233-MIB