LLDP-EXT-HM-MIB

All MIBs › LLDP-EXT-HM-MIB

Organization: Hirschmann Automation & Control

Last Updated: 2008-09-12

Category: Protocol: LLDP

Description: Hirschmann Automation LLDP extension MIB providing proprietary TLV objects for industrial automation network topology discovery.

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What Is LLDP-EXT-HM-MIB?

LLDP-EXT-HM-MIB is a Hirschmann Automation and Control proprietary extension to the standard LLDP-MIB (IEEE 802.1AB), branched under Hirschmann's OUI to carry vendor-specific Link Layer Discovery Protocol TLVs for industrial Ethernet switches. It exposes configuration and transmit-enable objects for protocol-specific TLVs covering GMRP, IGMP, port security, and PTP (Precision Time Protocol) settings advertised via LLDP. Rather than hardware health sensors, it is used to monitor and control which layer-2 protocol capabilities (multicast pruning, port security, time synchronization) a switch port advertises to its neighbors, which is valuable for verifying network topology and protocol configuration consistency across an industrial automation network. It explicitly depends on and extends the IETF LLDP-MIB (and by extension IEEE 802.1AB), since it is defined as a branch of lldpExtensions. It is typically deployed on Hirschmann managed industrial Ethernet switches used in factory automation, process control, and other operational technology (OT) networks requiring precise time sync and controlled multicast/broadcast behavior. Engineers can download the LLDP-EXT-HM-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in LLDP-EXT-HM-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

Hirschmann managed industrial Ethernet switch

Monitoring Examples

An engineer could poll lldpXHmConfigPTPTable/lldpXHmConfigPTPTxEnable per port to confirm that Precision Time Protocol advertisement is enabled where synchronized industrial clocks are required, and disabled elsewhere. Checking lldpXHmConfigGMRPTxEnable and lldpXHmConfigIGMPTxEnable across lldpXHmConfigGMRPTable/lldpXHmConfigIGMPTable reveals whether multicast registration protocols are being advertised consistently on trunk ports, helping diagnose multicast flooding issues. lldpXHmConfigPortSecTable/lldpXHmConfigPortSecTxEnable exposes whether port-security TLV advertisement is active, useful for auditing which ports are hardened against unauthorized device attachment.

What Can Be Monitored

GMRP TLV advertisement per port
IGMP TLV advertisement per port
port security TLV advertisement
PTP (time sync) TLV advertisement per port

Imported Objects

From LLDP-MIB

lldpExtensions	OBJECT-IDENTITY
lldpLocPortNum	OBJECT-TYPE
lldpPortConfigEntry	OBJECT-TYPE
lldpRemIndex	OBJECT-TYPE
lldpRemLocalPortNum	OBJECT-TYPE
lldpRemTimeMark	OBJECT-TYPE

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
lldpXHmMIB	1.0.8802.1.1.2.1.5.32867			The LLDP Management Information Base extension module for Hirschmann organizationally defined discovery information. In order to assure the uniqueness of the LLDP-MIB, lldpXHmMIB is branched from lldpExtensions using the Hirschmann OUI value as the node. Copyright (C) 2008. All Rights Reserved.
lldpXHmObjects	1.0.8802.1.1.2.1.5.32867.1
lldpXHmConfig	1.0.8802.1.1.2.1.5.32867.1.1
lldpXHmConfigGMRPTable	1.0.8802.1.1.2.1.5.32867.1.1.1		not-accessible	A table that controls GMRP LLDP TLV Information to be transmitted on individual ports.
lldpXHmConfigGMRPEntry	1.0.8802.1.1.2.1.5.32867.1.1.1.1		not-accessible	LLDP configuration information that controls the transmission of Hirschmann GMRP organizationally defined Configuration TLV on LLDP transmission capable ports. This configuration object augments the lldpPortConfigEntry of the LLDP-MIB, therefore it is only present along with the port configuration defined by the associated lldpPortConfigEntry entry. Each active lldpConfigEntry must be restored from non-volatile storage (along with the corresponding lldpPortConfigEntry) after a re-initialization of the management system.
T/F lldpXHmConfigGMRPTxEnable	1.0.8802.1.1.2.1.5.32867.1.1.1.1.1	TruthValue	read-write	The lldpXHmConfigGMRPTxEnable, which is defined as a truth value and configured by the network management, determines whether the Hirschmann GMRP organizationally defined port TLV transmission is allowed on a given LLDP transmission capable port. The value of this object must be restored from non-volatile storage after a re-initialization of the management system.
lldpXHmConfigIGMPTable	1.0.8802.1.1.2.1.5.32867.1.1.2		not-accessible	A table that controls IGMP LLDP TLV Information to be transmitted on individual ports.
lldpXHmConfigIGMPEntry	1.0.8802.1.1.2.1.5.32867.1.1.2.1		not-accessible	LLDP configuration information that controls the transmission of Hirschmann IGMP organizationally defined Configuration TLV on LLDP transmission capable ports. This configuration object augments the lldpPortConfigEntry of the LLDP-MIB, therefore it is only present along with the port configuration defined by the associated lldpPortConfigEntry entry. Each active lldpConfigEntry must be restored from non-volatile storage (along with the corresponding lldpPortConfigEntry) after a re-initialization of the management system.
T/F lldpXHmConfigIGMPTxEnable	1.0.8802.1.1.2.1.5.32867.1.1.2.1.1	TruthValue	read-write	The lldpXHmConfigIGMPTxEnable, which is defined as a truth value and configured by the network management, determines whether the Hirschmann IGMP organizationally defined port TLV transmission is allowed on a given LLDP transmission capable port. The value of this object must be restored from non-volatile storage after a re-initialization of the management system.
lldpXHmConfigPortSecTable	1.0.8802.1.1.2.1.5.32867.1.1.3		not-accessible	A table that controls 802.1X Port Security LLDP TLV Information to be transmitted on individual ports.
lldpXHmConfigPortSecEntry	1.0.8802.1.1.2.1.5.32867.1.1.3.1		not-accessible	LLDP configuration information that controls the transmission of Hirschmann 802.1X Port Security organizationally defined Configuration TLV on LLDP transmission capable ports. This configuration object augments the lldpPortConfigEntry of the LLDP-MIB, therefore it is only present along with the port configuration defined by the associated lldpPortConfigEntry entry. Each active lldpConfigEntry must be restored from non-volatile storage (along with the corresponding lldpPortConfigEntry) after a re-initialization of the management system.
T/F lldpXHmConfigPortSecTxEnable	1.0.8802.1.1.2.1.5.32867.1.1.3.1.1	TruthValue	read-write	The lldpXHmConfigPortSecTxEnable, which is defined as a truth value and configured by the network management, determines whether the Hirschmann 802.1X Port Security organizationally defined port TLV transmission is allowed on a given LLDP transmission capable port. The value of this object must be restored from non-volatile storage after a re-initialization of the management system.
lldpXHmConfigPTPTable	1.0.8802.1.1.2.1.5.32867.1.1.4		not-accessible	A table that controls PTP LLDP TLV Information to be transmitted on individual ports.
lldpXHmConfigPTPEntry	1.0.8802.1.1.2.1.5.32867.1.1.4.1		not-accessible	LLDP configuration information that controls the transmission of Hirschmann PTP organizationally defined Configuration TLV on LLDP transmission capable ports. This configuration object augments the lldpPortConfigEntry of the LLDP-MIB, therefore it is only present along with the port configuration defined by the associated lldpPortConfigEntry entry. Each active lldpConfigEntry must be restored from non-volatile storage (along with the corresponding lldpPortConfigEntry) after a re-initialization of the management system.
T/F lldpXHmConfigPTPTxEnable	1.0.8802.1.1.2.1.5.32867.1.1.4.1.1	TruthValue	read-write	The lldpXHmConfigPTPTxEnable, which is defined as a truth value and configured by the network management, determines whether the Hirschmann PTP organizationally defined port TLV transmission is allowed on a given LLDP transmission capable port. The value of this object must be restored from non-volatile storage after a re-initialization of the management system.
lldpXHmLocalData	1.0.8802.1.1.2.1.5.32867.1.2
lldpXHmLocGMRPTable	1.0.8802.1.1.2.1.5.32867.1.2.1		not-accessible	This table contains one or more rows per Port and GMRP information about each port of the local system. GMRP is a protocol used for constraining IP Multicast traffic defined by the IEEE in standard 802.1p, published in standard 802.1D
lldpXHmLocGMRPEntry	1.0.8802.1.1.2.1.5.32867.1.2.1.1		not-accessible	GMRP Information about a particular port component.
T/F lldpXHmLocGMRPSupport	1.0.8802.1.1.2.1.5.32867.1.2.1.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the local system) supports GMRP. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmLocGMRPStatus	1.0.8802.1.1.2.1.5.32867.1.2.1.1.2	TruthValue	read-only	The truth value used to indicate whether GMRP is enabled on the the given port associated with the local system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmLocGMRPServiceReq	1.0.8802.1.1.2.1.5.32867.1.2.1.1.3	LldpXHmLocGMRPServiceReqSyntax	read-only	Integer value, used to indicate which GMRP service requirement is enabled on the the given port associated with the local system.
lldpXHmLocIGMPTable	1.0.8802.1.1.2.1.5.32867.1.2.2		not-accessible	This table contains one or more rows per Port and IGMP information about each port of the local system. IGMP is a protocol used for constraining IP multicast traffic specified in IETF RFCs 1112, 2236(IGMPv2) and 3376(IGMPv3)
lldpXHmLocIGMPEntry	1.0.8802.1.1.2.1.5.32867.1.2.2.1		not-accessible	IGMP Information about a particular port component.
T/F lldpXHmLocIGMPSupport	1.0.8802.1.1.2.1.5.32867.1.2.2.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the local system) supports IGMP. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmLocIGMPStatus	1.0.8802.1.1.2.1.5.32867.1.2.2.1.2	TruthValue	read-only	The truth value used to indicate whether IGMP is enabled on the the given port associated with the local system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmLocIGMPVersion	1.0.8802.1.1.2.1.5.32867.1.2.2.1.3	LldpXHmLocIGMPVersionSyntax	read-only	This bitmap shows which IGMP version is configured on the local device.
lldpXHmLocPortSecTable	1.0.8802.1.1.2.1.5.32867.1.2.3		not-accessible	This table contains one or more rows per Port and 802.1X Port Security information about each port of the local system. IEEE 802.1X Port Security is a standard, defining rules for a port based network access control with a client/supplicant requesting access to the network from an authenticator/RADIUS server
lldpXHmLocPortSecEntry	1.0.8802.1.1.2.1.5.32867.1.2.3.1		not-accessible	802.1X Port Security Information about a particular port component.
T/F lldpXHmLocPortSecSupport	1.0.8802.1.1.2.1.5.32867.1.2.3.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the local system) supports 802.1X Port Security. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmLocPortSecStatus	1.0.8802.1.1.2.1.5.32867.1.2.3.1.2	TruthValue	read-only	The truth value used to indicate whether 802.1X Port Security is enabled on the the given port associated with the local system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmLocPortSecMode	1.0.8802.1.1.2.1.5.32867.1.2.3.1.3	LldpXHmLocPortSecModeSyntax	read-only	This Integer value contains informations about a local ports 802.1X configuration.
lldpXHmLocPTPTable	1.0.8802.1.1.2.1.5.32867.1.2.4		not-accessible	This table contains one or more rows per Port and PTP information about the local system. The Precision Time Protocol (PTP) is defined in IEEE Standard 1588 and describes a protocol for network (system) clock synchronization with very high precision.
lldpXHmLocPTPEntry	1.0.8802.1.1.2.1.5.32867.1.2.4.1		not-accessible	Port and PTP Information about a particular port component
LLD lldpXHmLocPTPSupport	1.0.8802.1.1.2.1.5.32867.1.2.4.1.1	LldpXHmLocPTPSupportSyntax	read-only	This bitmap shows which PTP versions are supported by the local system, based on installed hardware
LLD lldpXHmLocPTPStatus	1.0.8802.1.1.2.1.5.32867.1.2.4.1.2	LldpXHmLocPTPStatusSyntax	read-only	This bitmap shows which PTP versions are enabled on the local system
I32 lldpXHmLocPTPSyncInterval	1.0.8802.1.1.2.1.5.32867.1.2.4.1.3	Integer32	read-only	This Integer shows the PTPv1 and PTPv2 Synchronization Interval. If no PTP is available or configured, this value should be set to -128.
I32 lldpXHmLocPTPv2AnnounceInterval	1.0.8802.1.1.2.1.5.32867.1.2.4.1.4	Integer32	read-only	This Integer shows the PTPv2 Announce Interval. If PTPv2 is not configured or available, this should be set to -128.
LLD lldpXHmLocPTPv2DataTransfer	1.0.8802.1.1.2.1.5.32867.1.2.4.1.5	LldpXHmLocPTPv2DataTransferSyntax	read-only	This Integer shows the enabled PTPv2 data transfer method.
LLD lldpXHmLocPTPv2DelayMechanism	1.0.8802.1.1.2.1.5.32867.1.2.4.1.6	LldpXHmLocPTPv2DelayMechanismSyntax	read-only	This Integer shows the enabled PTPv2 delay mechanism
BIT lldpXHmLocPTPClockValues	1.0.8802.1.1.2.1.5.32867.1.2.4.1.7	Bits	read-only	This bitmap shows, which clock type(s) are configured on a specific port and/or device: Bit (0) set to 1 indicates a slave clock Bit (1) set to 1 indicates a master clock Bit (2) set to 1 indicates a transparent clock Bit (3) set to 1 indicates a boundary clock Bit (4) set to 1 indicates a grandmaster clock Bit (5) set to 1 indicates a clock in multi domain mode Bit (6) set to 1 indicates a clock in simple mode If no PTP is configured, all bits should be set to 0.
I32 lldpXHmLocPTPv2SubdomainNumber	1.0.8802.1.1.2.1.5.32867.1.2.4.1.8	Integer32	read-only	This Integer shows the PTPv2 subdomain number configured on the local device. In case PTPv1 is configured, this value is of no relevance and will not be evaluated.
OCT lldpXHmLocPTPv1SubdomainName	1.0.8802.1.1.2.1.5.32867.1.2.4.1.9	OCTET STRING	read-only	This Octet String contains the PTPv1 subdomain name, an ASCII String with a maximum of 16 characters length, configured on the local device. If PTPv2 or no PTP is configured, this should be set to 0.
lldpXHmRemoteData	1.0.8802.1.1.2.1.5.32867.1.3
lldpXHmRemGMRPTable	1.0.8802.1.1.2.1.5.32867.1.3.1		not-accessible	This table contains one or more rows per Port and GMRP information about the remote system. GMRP is a protocol used for constraining IP Multicast traffic defined by the IEEE in standard 802.1p, published in standard 802.1D
lldpXHmRemGMRPEntry	1.0.8802.1.1.2.1.5.32867.1.3.1.1		not-accessible	GMRP Information about a particular port component.
T/F lldpXHmRemGMRPSupport	1.0.8802.1.1.2.1.5.32867.1.3.1.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the remote system) supports GMRP. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmRemGMRPStatus	1.0.8802.1.1.2.1.5.32867.1.3.1.1.2	TruthValue	read-only	The truth value used to indicate whether GMRP is enabled on the the given port associated with the remote system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmRemGMRPServiceReq	1.0.8802.1.1.2.1.5.32867.1.3.1.1.3	LldpXHmRemGMRPServiceReqSyntax	read-only	Integer value, used to indicate which GMRP service requirement is enabled on the the given port associated with the remote system.
lldpXHmRemIGMPTable	1.0.8802.1.1.2.1.5.32867.1.3.2		not-accessible	This table contains one or more rows per Port and IGMP information about each port of the remote system. IGMP is a protocol used for constraining IP multicast traffic specified in IETF RFCs 1112, 2236(IGMPv2) and 3376(IGMPv3)
lldpXHmRemIGMPEntry	1.0.8802.1.1.2.1.5.32867.1.3.2.1		not-accessible	IGMP Information about a particular port component.
T/F lldpXHmRemIGMPSupport	1.0.8802.1.1.2.1.5.32867.1.3.2.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the remote system) supports IGMP. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmRemIGMPStatus	1.0.8802.1.1.2.1.5.32867.1.3.2.1.2	TruthValue	read-only	The truth value used to indicate whether IGMP is enabled on the the given port associated with the remote system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmRemIGMPVersion	1.0.8802.1.1.2.1.5.32867.1.3.2.1.3	LldpXHmRemIGMPVersionSyntax	read-only	This bitmap shows which IGMP version is configured on the remote device.
lldpXHmRemPortSecTable	1.0.8802.1.1.2.1.5.32867.1.3.3		not-accessible	This table contains one or more rows per Port and 802.1X Port Security information about each port of the remote system. IEEE 802.1X Port Security is a standard, defining rules for a port based network access control with a client/supplicant requesting access to the network from an authenticator/RADIUS server
lldpXHmRemPortSecEntry	1.0.8802.1.1.2.1.5.32867.1.3.3.1		not-accessible	802.1X Port Security Information about a particular port component.
T/F lldpXHmRemPortSecSupport	1.0.8802.1.1.2.1.5.32867.1.3.3.1.1	TruthValue	read-only	The truth value used to indicate whether the given port (associated with the remote system) supports 802.1X Port Security. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
T/F lldpXHmRemPortSecStatus	1.0.8802.1.1.2.1.5.32867.1.3.3.1.2	TruthValue	read-only	The truth value used to indicate whether 802.1X Port Security is enabled on the the given port associated with the remote system. If this is set to (false), all following fields should be set to not applicable and should not be evaluated.
LLD lldpXHmRemPortSecMode	1.0.8802.1.1.2.1.5.32867.1.3.3.1.3	LldpXHmRemPortSecModeSyntax	read-only	This Integer value contains informations about a remote ports 802.1X configuration.
lldpXHmRemPTPTable	1.0.8802.1.1.2.1.5.32867.1.3.4		not-accessible	This table contains one or more rows per Port and PTP information about the remote system. The Precision Time Protocol (PTP) is defined in IEEE Standard 1588 and describes a protocol for network (system) clock synchronization with very high precision.
lldpXHmRemPTPEntry	1.0.8802.1.1.2.1.5.32867.1.3.4.1		not-accessible	Port and PTP Information about a particular port component
LLD lldpXHmRemPTPSupport	1.0.8802.1.1.2.1.5.32867.1.3.4.1.1	LldpXHmRemPTPSupportSyntax	read-only	Shows which PTP versions are supported by the remote system, based on installed hardware
LLD lldpXHmRemPTPStatus	1.0.8802.1.1.2.1.5.32867.1.3.4.1.2	LldpXHmRemPTPStatusSyntax	read-only	Shows which PTP versions are enabled on the remote system
I32 lldpXHmRemPTPSyncInterval	1.0.8802.1.1.2.1.5.32867.1.3.4.1.3	Integer32	read-only	Shows the PTPv1 and PTPv2 Synchronization Interval. If no PTP is available or configured, this value should be set to -128.
I32 lldpXHmRemPTPv2AnnounceInterval	1.0.8802.1.1.2.1.5.32867.1.3.4.1.4	Integer32	read-only	Shows the PTPv2 Announce Interval. If PTPv2 is not configured or available, this should be set to -128.
LLD lldpXHmRemPTPv2DataTransfer	1.0.8802.1.1.2.1.5.32867.1.3.4.1.5	LldpXHmRemPTPv2DataTransferSyntax	read-only	This field is only viable if PTPv2 is enabled. It shows the data transfer type configured on the remote port and device.
LLD lldpXHmRemPTPv2DelayMechanism	1.0.8802.1.1.2.1.5.32867.1.3.4.1.6	LldpXHmRemPTPv2DelayMechanismSyntax	read-only	Shows the enabled PTPv2 delay mechanism
BIT lldpXHmRemPTPClockValues	1.0.8802.1.1.2.1.5.32867.1.3.4.1.7	Bits	read-only	Shows, which clock type(s) are configured on a specific remote port and/or device: Bit (0) set to 1 indicates a slave clock Bit (1) set to 1 indicates a master clock Bit (2) set to 1 indicates a transparent clock Bit (3) set to 1 indicates a boundary clock Bit (4) set to 1 indicates a grandmaster clock Bit (5) set to 1 indicates a clock in multi domain mode Bit (6) set to 1 indicates a clock in simple mode If no PTP is configured, all bits should be set to 0.
I32 lldpXHmRemPTPv2SubdomainNumber	1.0.8802.1.1.2.1.5.32867.1.3.4.1.8	Integer32	read-only	Shows the PTPv2 subdomain number configured on the remote device. In case PTPv1 is configured, this value is of no relevance and will not be evaluated.
OCT lldpXHmRemPTPv1SubdomainName	1.0.8802.1.1.2.1.5.32867.1.3.4.1.9	OCTET STRING	read-only	This Octet String contains the PTPv1 subdomain name, an ASCII String with a maximum of 16 characters length, configured on the remote device. If PTPv2 is configured, this field should be set to 0.

RFC description

Extends LLDP with Hirschmann-specific organizationally defined device discovery information and settings.

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Download LLDP-EXT-HM-MIB

What Is LLDP-EXT-HM-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description