All MIBs › ZXR10-UDLD-MIB
Organization: ZTE Corporation
Last Updated: 2008-10-21
Category: ZTE ZXR10 Layer 2 Switching
Description: Manages ZTE ZXR10 Unidirectional Link Detection for identifying and disabling one-way Ethernet link failures.
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What Is ZXR10-UDLD-MIB?
ZXR10-UDLD-MIB is a ZTE private MIB for the ZXR10 switch/router platform (ZXROS firmware) implementing Unidirectional Link Detection (UDLD), a Layer 2 protocol that detects one-way Ethernet links caused by miswiring or faulty transceivers/fiber and can automatically disable the affected port to prevent loops or blackholing. It exposes configuration objects for enabling UDLD per-port/globally and state objects reflecting detected link directionality. Its monitoring value is centered on physical link health: it lets an operator detect a unidirectional (one-way) link condition that standard link-up/link-down states would miss, and confirm whether UDLD has taken protective action such as disabling a port. As a UDLD implementation it conceptually parallels other vendors' UDLD features, though it is ZTE's own private MIB rather than a direct dependency. It is deployed on ZTE ZXR10 switches/routers in enterprise and carrier networks to protect against unidirectional-link-induced loops. Engineers can download the ZXR10-UDLD-MIB file directly to load it into their MIB browser.
IPNetwork Monitor allows you to monitor SNMP objects defined in ZXR10-UDLD-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 ZXR10 switch/router (ZXROS firmware)
Monitoring Examples
No specific object/table names were provided in the source data for this MIB, so concrete instances cannot be cited; based on its description, an administrator would typically poll per-port UDLD enable state and detected link-direction status to identify a port where UDLD has detected a one-way link and shut it down, which would otherwise appear only as unexplained connectivity issues.
What Can Be Monitored
- per-port UDLD enable/disable state
- detected unidirectional link condition
- UDLD-triggered port shutdown status
Imported Objects
From RFC1213-MIB
| ifIndex |
From SNMPv2-SMI
| MODULE-IDENTITY | |
| OBJECT-TYPE | |
| Unsigned32 |
From SNMPv2-TC
| MacAddress | |
| TEXTUAL-CONVENTION |
From ZXR10-SMI
| zxr10 | OBJECT-IDENTITY |
OIDs
RFC description
Implements Unidirectional Link Detection (UDLD) to identify and shut down one-way network links in normal or aggressive mode.
Start monitoring ZTE ZXR10 switch/router (ZXROS firmware) (UDLD unidirectional-link-detection/protective-action status) with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.