All MIBs › ZTE-AN-INTERFACE-LOOPBACK-MIB
Organization: ZTE Corporation
Last Updated: 2017-12-26
Category: ZTE Access Node (ZTE-AN) Management
Description: Manages ZTE access node interface loopback test configuration for physical layer fault diagnosis.
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What Is ZTE-AN-INTERFACE-LOOPBACK-MIB?
This is a ZTE-specific MIB module for the access node (AN) product line, covering broadband access equipment such as DSLAMs, OLTs, and multi-service access platforms used in carrier last-mile networks. It exposes configuration and status data for interface loopback testing, a physical-layer diagnostic technique used to verify the integrity of a transmission path by looping signals back toward their source. Rather than performance counters or environmental sensors, its monitoring value lies in fault isolation: operators can check whether a loopback is currently active on a given interface, its direction (local/remote), and its configured duration, which helps confirm whether reported line faults are due to the physical medium or upstream equipment. It complements standard interface MIBs like IF-MIB, since loopback state is typically correlated against ifOperStatus and ifAdminStatus to interpret why a circuit is down. It is typically deployed by telecom operators troubleshooting subscriber line issues on ZTE access nodes in FTTx or DSL access networks. Engineers can download the ZTE-AN-INTERFACE-LOOPBACK-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in ZTE-AN-INTERFACE-LOOPBACK-MIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.
Supported Devices
- ZTE access nodes (DSLAM/OLT/multi-service access platforms)
Monitoring Examples
An operator suspects a subscriber-facing port is experiencing signal degradation and enables a loopback test object on that interface to confirm the copper or fiber pair is intact end-to-end. Polling the loopback status object afterward reveals whether the test is still running, has completed, or timed out, which helps distinguish a cable fault from a CPE or upstream network problem. No sample objects were available in the source extract for this module, so exact object names cannot be confirmed here.
What Can Be Monitored
- loopback test status
- loopback direction (local/remote)
- loopback activation state
- interface under test
- test duration/timeout
Imported Objects
From IF-MIB
| ifIndex | OBJECT-TYPE |
From SNMPv2-CONF
| MODULE-COMPLIANCE | |
| OBJECT-GROUP |
From SNMPv2-SMI
| Integer32 | |
| MODULE-IDENTITY | |
| OBJECT-TYPE |
From ZTE-AN-IF-MIB
| zxAnSubIfIndex | OBJECT-TYPE |
From ZTE-AN-SMI
| zxAnInterface | OBJECT-IDENTITY |
OIDs
RFC description
Interface loopback configuration for ZTE access network devices, supporting uplink and downlink loopback modes.
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