HPN-ICF-DLDP-MIB

All MIBs › HPN-ICF-DLDP-MIB

Last Updated: 2004-12-13

Category: Technology: Loop Detection, Technology: OAM, Technology: Switching/L2, Vendor: H3C/HH3C, Vendor: HP/HPE

Description: HP Networking ICF SNMP MIB for Device Link Detection Protocol (DLDP) detecting one-way link failures on HP networking devices.

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What Is HPN-ICF-DLDP-MIB?

HPN-ICF-DLDP-MIB is a vendor-specific SNMP module from HP Networking's Comware/ICF platform, implementing management for the Device Link Detection Protocol (DLDP), a mechanism used to detect unidirectional (one-way) fiber or copper link failures that standard link-state monitoring cannot catch. It exposes configuration data such as global enable state, detection work mode, probe interval, and authentication settings, alongside per-port operational status showing whether a link is bidirectional, unidirectional, or in an indeterminate state. In terms of hardware/software health monitoring, this MIB is specifically valuable for catching a class of physical-layer fault that leaves a link's carrier signal up while traffic in one direction is silently dropped, which can otherwise cause spanning-tree loops or blackholed traffic; polling port state here effectively monitors link integrity health that interface counters alone would miss. It complements, rather than replaces, standard IF-MIB and BRIDGE-MIB interface/link state monitoring. It is deployed on HP/H3C Comware switches and routers using fiber uplinks or aggregation links where undetected one-way failures pose a risk to Layer 2 topology stability. Engineers can download the HPN-ICF-DLDP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HPN-ICF-DLDP-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

HP/H3C Comware switch
HP/H3C Comware router

Monitoring Examples

An administrator would poll hpnicfDLDPPortStateTable (via hpnicfDLDPPortStateEntry/hpnicfDLDPPortState) to check whether each monitored port reports a healthy bidirectional link versus a unidirectional or down state, and cross-reference hpnicfDLDPSystemEnable and hpnicfDLDPInterval to confirm the protocol is active and how frequently it probes. A port flipping to a unidirectional state combined with hpnicfDLDPUnidirectionalShutdown being enabled indicates DLDP has already administratively shut the port down to prevent a loop. The hpnicfDLDPPortDLDPTable provides additional per-port DLDP configuration for correlating which ports have detection enabled.

What Can Be Monitored

DLDP global enable state
per-port link state (bidirectional/unidirectional)
detection interval
authentication mode
unidirectional-shutdown action
DLDP work mode

Imported Objects

From HPN-ICF-OID-MIB

hpnicfCommon

OBJECT-IDENTITY

From RFC1213-MIB

ifIndex

From SNMPv2-SMI

Counter32
Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

MacAddress
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
hpnicfDldp	1.3.6.1.4.1.11.2.14.11.15.2.43			DLDP (Device Link Detection Protocol) MIB
hpnicfDLDPMibObject	1.3.6.1.4.1.11.2.14.11.15.2.43.1
hpnicfDLDPConfigGroup	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1
INT hpnicfDLDPWorkMode	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.1	INTEGER	read-write	The work mode of DLDP. Normal mode means DLDP does not detect neighbor on its own initiative when all neighbors aged. Enhance mode means DLDP detects neighbor on its own initiative when all neighbors aged.
T/F hpnicfDLDPSystemEnable	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.2	TruthValue	read-write	DLDP enable or disable systematically. This node only supports set operation. If setting it to true, all the fiber ports will enable DLDP and the agent automatically creates new rows for each port in hpnicfDLDPPortDLDPTable. If setting it to false, all the fiber ports will disable DLDP and the agent automatically destroy the corresponding rows in hpnicfDLDPPortDLDPTable.
T/F hpnicfDLDPSystemReset	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.3	TruthValue	read-write	DLDP reset systematically. This node only supports set operation. If the value of hpnicfDLDPSystemReset is true, and the current state is disable, it will change to inactive while the port is down or active while the port is up. If hpnicfDLDPPortDLDPState is not disable, it does not change.
INT hpnicfDLDPInterval	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.4	INTEGER	read-write	The interval of sending an advertisement PDU. unit : second
INT hpnicfDLDPAuthenticationMode	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.5	INTEGER	read-write	Type of authentication mode.
OCT hpnicfDLDPAuthenticationPassword	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.6	OCTET STRING	read-write	This is the password for authentication. If the value of hpnicfDLDPAuthenticationMode is null, the user cannot set this node. If the value of hpnicfDLDPAuthenticationMode is simple or MD5, the user must set this node with a string. When the user gets or walks this node, it displays a cipher password if hpnicfDLDPAuthenticationMode is MD5 or simple or a zero-length string if hpnicfDLDPAuthenticationMode is null.
INT hpnicfDLDPUnidirectionalShutdown	1.3.6.1.4.1.11.2.14.11.15.2.43.1.1.7	INTEGER	read-write	The mode of unidirectional shutdown. It indicates the shutdown mode when a unidirectional link happened. Auto mode means the port will be shut down automatically when DLDP detects unidirectional link. Manual mode means the port needs to be shut down by the administrator manually when DLDP detects unidirectional link.
hpnicfDLDPPortStateTable	1.3.6.1.4.1.11.2.14.11.15.2.43.1.2		not-accessible	The table of the Ethernet ports of a LAN switch.
hpnicfDLDPPortStateEntry	1.3.6.1.4.1.11.2.14.11.15.2.43.1.2.1		not-accessible	Information about a hpnicfDLDPPortDLDPTable entity.
ENA hpnicfDLDPPortState	1.3.6.1.4.1.11.2.14.11.15.2.43.1.2.1.1	EnabledStatus	read-write	State of a port. If setting it to enabled, the port will enable DLDP and a new row will be added in hpnicfDLDPPortDLDPTable for this port. If setting it to disabled, the port will disable DLDP and the corresponding row will be destroyed in hpnicfDLDPPortDLDPTable.
hpnicfDLDPPortDLDPTable	1.3.6.1.4.1.11.2.14.11.15.2.43.1.3		not-accessible	Table of a LAN switch's ports, which enable DLDP.
hpnicfDLDPPortDLDPEntry	1.3.6.1.4.1.11.2.14.11.15.2.43.1.3.1		not-accessible	The information of a port, which enable DLDP.
DLD hpnicfDLDPPortDLDPState	1.3.6.1.4.1.11.2.14.11.15.2.43.1.3.1.1	DLDPStatus	read-only	Operating state of DLDP on the port. It is relational with hpnicfDLDPPortState and hpnicfDLDPLinkState.
INT hpnicfDLDPLinkState	1.3.6.1.4.1.11.2.14.11.15.2.43.1.3.1.2	INTEGER	read-only	The link state of the port.
T/F hpnicfDLDPPortDLDPReset	1.3.6.1.4.1.11.2.14.11.15.2.43.1.3.1.3	TruthValue	read-write	DLDP reset systematically. This node only supports set operation. If the value of hpnicfDLDPPortDLDPReset is true, and the current state is disable, it will change to inactive while the port is down or active while the port is up.
hpnicfDLDPNeighborTable	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4		not-accessible	Table of a port's neighbors.
hpnicfDLDPNeighborEntry	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4.1		not-accessible	The information of a neighbor.
MAC hpnicfDLDPNeighborBridgeMac	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4.1.1	MacAddress	not-accessible	The bridge MAC address of a neighbor.
I32 hpnicfDLDPNeighborPortIndex	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4.1.2	Integer32	not-accessible	The port index of a neighbor.
DLD hpnicfDLDPNeighborState	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4.1.3	DLDPNeighborStatus	read-only	The state of a neighbor.
I32 hpnicfDLDPNeighborAgingTime	1.3.6.1.4.1.11.2.14.11.15.2.43.1.4.1.4	Integer32	read-only	The aging time of a neighbor. unit: second.
hpnicfDLDPTrapObject	1.3.6.1.4.1.11.2.14.11.15.2.43.2
hpnicfDLDPNotification	1.3.6.1.4.1.11.2.14.11.15.2.43.2.1
NTF hpnicfDLDPUnidirectionalPort	1.3.6.1.4.1.11.2.14.11.15.2.43.2.1.1			It will send a SNMP trap when the state of a port has changed to unidirectional-link.

RFC description

Vendor-private MIB for HP/HPE Intelligent Fabric technologies; manages Device Link Detection Protocol (DLDP) for link failure detection and loop prevention.

Start monitoring HP/H3C Comware switch or router (Device Link Detection Protocol) 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 HPN-ICF-DLDP-MIB

What Is HPN-ICF-DLDP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description