HM2-LINK-BACKUP-MIB

All MIBs › HM2-LINK-BACKUP-MIB

Organization: Hirschmann Automation and Control GmbH

Last Updated: 2013-05-14

Category: Technology: High Availability, Vendor: Belden

Description: Hirschmann HiOS (HM2) link backup MIB for configuring active/standby uplink redundancy on Hirschmann switches.

Start monitoring vendor-neutral, standards-based MIB, any SNMPv3-capable network device (SNMP engine identity/boot/clock 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.

What Is HM2-LINK-BACKUP-MIB?

HM2-LINK-BACKUP-MIB is a Hirschmann HiOS (HM2 platform) proprietary MIB for the Link Backup feature, which provides active/standby uplink redundancy so a backup interface automatically takes over if the primary uplink fails. It exposes per-interface configuration for primary/backup interface pairing, fail-back behavior, and delay timing, plus notifications for state changes. Its monitoring value is squarely on fault/failover status: hm2LinkBackupPrimaryInterfaceStatus and hm2LinkBackupBackupInterfaceStatus report whether each link is up or down, hm2LinkBackupFailBackEnable/hm2LinkBackupFailBackDelay describe recovery behavior, and hm2LinkBackupNotifications generate traps when a failover occurs — all central to detecting an uplink failure condition. It relies on the standard IF-MIB for the underlying interface indices referenced by hm2LinkBackupPrimaryInterface/hm2LinkBackupBackupInterface. It is deployed on Hirschmann industrial Ethernet switches in ring/redundant-uplink topologies common in factory automation and utility networks. Network engineers evaluating or troubleshooting this functionality can download the HM2-LINK-BACKUP-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HM2-LINK-BACKUP-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 HiOS-based industrial Ethernet switches

Monitoring Examples

An administrator would poll hm2LinkBackupInterfaceConfigTable/hm2LinkBackupInterfaceConfigEntry to check hm2LinkBackupPrimaryInterfaceStatus for a given pairing; if it shows down while hm2LinkBackupBackupInterfaceStatus shows up, the switch has failed over to its backup uplink. Monitoring hm2LinkBackupFailBackEnable and hm2LinkBackupFailBackDelay confirms whether the switch will automatically revert once the primary interface recovers. A trap from hm2LinkBackupNotifications provides near-real-time alerting of the failover event to a management station.

What Can Be Monitored

primary interface link status
backup interface link status
fail-back enable state and delay
link backup row status
failover state-change notifications

Imported Objects

From HM2-L2REDUNDANCY-MIB

hm2L2RedundancyMibObjects

OBJECT-IDENTITY

From HM2-TC-MIB

HmEnabledStatus

From IF-MIB

InterfaceIndex

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

RowStatus
TEXTUAL-CONVENTION
TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
hm2LinkBackupMibGroup	1.3.6.1.4.1.248.11.40.1.3			Hirschmann Link Backup MIB. Copyright (C) 2013. All Rights Reserved.
hm2LinkBackupNotifications	1.3.6.1.4.1.248.11.40.1.3.0
NTF hm2LinkBackupStatusTrap	1.3.6.1.4.1.248.11.40.1.3.0.1			This trap is sent for each link backup pair if either the status of the hm2LinkBackupPrimaryInterfaceStatus or the status of the hm2LinkBackupBackupInterfaceStatus changes.
hm2LinkBackupObjects	1.3.6.1.4.1.248.11.40.1.3.1
hm2LinkBackupConfiguration	1.3.6.1.4.1.248.11.40.1.3.1.1
hm2LinkBackupGeneralGroup	1.3.6.1.4.1.248.11.40.1.3.1.1.1
HME hm2LinkBackupAdminStatus	1.3.6.1.4.1.248.11.40.1.3.1.1.1.1	HmEnabledStatus	read-write	Enables/disables the global link backup functionality on the device.
hm2LinkBackupInterfaceGroup	1.3.6.1.4.1.248.11.40.1.3.1.1.2
hm2LinkBackupInterfaceConfigTable	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1		not-accessible	A table containing current configuration and status information for each link backup pair.
hm2LinkBackupInterfaceConfigEntry	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1		not-accessible	A logical row in the hm2LinkBackupIfConfigTable.
NUM hm2LinkBackupPrimaryInterface	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.1	InterfaceIndex	accessible-for-notify	The primary interface of the link backup pair.
NUM hm2LinkBackupBackupInterface	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.2	InterfaceIndex	accessible-for-notify	The primary interface of the link backup pair.
HML hm2LinkBackupPrimaryInterfaceStatus	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.3	HmLinkBackupStatus	read-only	The current status of the primary interface for this link backup pair.
HML hm2LinkBackupBackupInterfaceStatus	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.4	HmLinkBackupStatus	read-only	The current status of the backup interface for this link backup pair.
T/F hm2LinkBackupFailBackEnable	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.5	TruthValue	read-create	If set to 'true', the backup interface goes to 'blocking' and the primary interface to 'forwarding' after the time configured in hm2LinkBackupFailBackDelay. If set to 'false' the backup interface stays in 'forwarding' even the primary interface has re-established a link or the admin status of the primary interface has been set from 'down' to 'up'.
I32 hm2LinkBackupFailBackDelay	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.6	Integer32	read-create	The time in seconds when the backup interface goes to 'blocking' and the primary interface goes to 'forwarding' after the primary interface has re-established a link or the admin status of the primary interface has been set from 'down' to 'up' if hm2LinkBackupFailBackEnable is set to 'true'. If the hm2LinkBackupFailBackDelay is set to '0' the primary interface goes to 'forwarding' immediately after it has re-established a link or the admin status of the primary interface has been set from 'down' to 'up' and the backup interface goes to 'blocking' if hm2LinkBackupFailBackEnable is set to 'true'.
STR hm2LinkBackupDescription	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.7	SnmpAdminString	read-create	A description of the link backup pair.
ROW hm2LinkBackupRowStatus	1.3.6.1.4.1.248.11.40.1.3.1.1.2.1.1.10	RowStatus	read-create	Describes the status of a row in the table. Supports creation, deletion and activation of rows. A row must not be active(1) in order to be modified. A row can be taken out of service by setting the value notInService(2).

RFC description

Manages link backup and redundancy features on Hirschmann industrial switches enabling automatic failover on port or link failures.

Start monitoring Hirschmann HiOS industrial Ethernet switch (active/standby uplink backup) 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 HM2-LINK-BACKUP-MIB

What Is HM2-LINK-BACKUP-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description