NETGEAR-UDLD-MIB

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Organization: Netgear Inc

Last Updated: 2008--0-2-

Category: LAN Management, OAM

Description: Manages Unidirectional Link Detection protocol state and messaging interval on Netgear switch ports.

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What Is NETGEAR-UDLD-MIB?

NETGEAR-UDLD-MIB is a Netgear (Broadcom FastPath switch software) proprietary MIB configuring UDLD (UniDirectional Link Detection), which detects a fiber/copper link that is only passing traffic in one direction. Its objects cover a global mode, message/timeout interval, a reset action, and a per-interface table (operational status, admin mode, aggressive-mode flag). As a configuration/status MIB it lets an administrator confirm UDLD is enabled and check for a detected unidirectional link on a Netgear FastPath switch. It is deployed on Netgear FastPath-based managed switches. Engineers can download the NETGEAR-UDLD-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NETGEAR-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

Netgear FastPath-based managed switches

Monitoring Examples

An administrator checks agentUdldInterfaceOperStatus to confirm UDLD detected and shut down a unidirectional link on a Netgear FastPath switch port.

What Can Be Monitored

UDLD (unidirectional link detection) status per interface

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From QUANTA-LB6M-REF-MIB

lb6m	OBJECT-IDENTITY

From RFC1213-MIB

DisplayString

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
fastPathUdld	1.3.6.1.4.1.4526.10.54			The Netgear Private MIB for FastPath UDLD.
agentUdldMIBObjects	1.3.6.1.4.1.4526.10.54.1
agentUdldGlobal	1.3.6.1.4.1.4526.10.54.1.1
INT agentUdldGlobalMode	1.3.6.1.4.1.4526.10.54.1.1.1	INTEGER	read-write	Indicates the mode of UDLDP feature on the device. enable -- Unidirectional Link Detection Protocol is enabled on the device. disable -- Unidirectional Link Detection Protocol is disabled on the device.
INT agentUdldMessageInterval	1.3.6.1.4.1.4526.10.54.1.1.2	INTEGER	read-write	Indicates interval in seconds at which each port sends a packet to all of its neighbors at steady state when the link has been identified as bidirectional.
INT agentUdldTimeoutInterval	1.3.6.1.4.1.4526.10.54.1.1.3	INTEGER	read-write	Indicates Timeout interval in seconds.
INT agentUdldReset	1.3.6.1.4.1.4526.10.54.1.1.4	INTEGER	read-write	Resets all interfaces that have been shutdown by UDLD. On read OID will always be 0.
agentUdldInterface	1.3.6.1.4.1.4526.10.54.1.2
agentUdldInterfaceTable	1.3.6.1.4.1.4526.10.54.1.2.1		not-accessible	The table containing the status of UDLDP on the device's interfaces.
agentUdldInterfaceEntry	1.3.6.1.4.1.4526.10.54.1.2.1.1		not-accessible	An entry exists for each interface that supports UDLDP.
INT agentUdldInterfaceOperStatus	1.3.6.1.4.1.4526.10.54.1.2.1.1.1	INTEGER	read-only	This mib object contains the following values, which has the meaning as: 'shutdown' - An Unidirectional link has been detected and the port has been disabled. 'undetermined' - Unidirectional Link Detection protocol has not collected enough information to determine if the link is bidirectional or not. 'biDirectional' - A bidirectional link has been detected. 'notApplicable' - Unidirectional Link Detection Protocol is disabled. 'undetermined-LinkDown' - The port would transition into this state when the port link physically goes down due to any reasons other than the port been put into D-Disable mode by UDLD protocol on the switch.
INT agentUdldInterfaceAdminMode	1.3.6.1.4.1.4526.10.54.1.2.1.1.2	INTEGER	read-write	Indicates the Administrative mode of Unidirectional Link Detection Protocol Feature configured on this interface. enable -- Unidirectional Link Detection Protocol is enabled on this interface. disable -- Unidirectional Link Detection Protocol is disabled on this interface.
T/F agentUdldInterfaceAggresiveMode	1.3.6.1.4.1.4526.10.54.1.2.1.1.3	TruthValue	read-write	Indicates the mode of UDLDP feature on the interface. TRUE -- Aggressive mode is enabled on the interface. FALSE -- Aggressive mode is disabled on the interface.

RFC description

Manages Unidirectional Link Detection Protocol to identify and disable one-way link failures on network interfaces.

Start monitoring Netgear FastPath-based managed switch (UniDirectional Link Detection) 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.

Download NETGEAR-UDLD-MIB

What Is NETGEAR-UDLD-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description