HH3C-FAILOVER-MIB

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Organization: New H3C Tech. Co., Ltd.

Last Updated: 2015-10-27

Category: Technology: High Availability, Vendor: H3C/HH3C

Description: Manages failover groups and switchover events for stateful redundancy on H3C high-availability platforms.

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What Is HH3C-FAILOVER-MIB?

HH3C-FAILOVER-MIB manages failover groups on H3C high-availability platforms, a redundancy mechanism that pairs a primary processing node (chassis/slot/CPU) with a secondary node that takes over services if the primary fails. It exposes configuration objects for the maximum and current number of failover groups, a per-group configuration table identifying the primary and secondary node by chassis ID, slot ID, and CPU ID, plus notification objects for failover events. Its monitoring focus is squarely on hardware/module redundancy health: an administrator can confirm each failover group's primary and secondary CPU assignments are as expected and watch for failover notifications indicating an actual switchover occurred, which reflects both process/service and CPU-module health on modular H3C chassis. It is an H3C-proprietary high-availability feature built on the device's internal chassis/slot/CPU addressing model rather than an external standard. It is deployed on modular H3C routers/switches with redundant supervisor or service-processing modules in environments requiring stateful failover for critical services. Engineers can download the HH3C-FAILOVER-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in HH3C-FAILOVER-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

modular H3C routers
modular H3C switches with redundant supervisor/service modules

Monitoring Examples

An administrator would poll hh3cFailoverCfgTable, keyed by hh3cFailoverIndex, checking hh3cFailoverPrimaryChassisID/SlotID/CpuID against hh3cFailoverSecondaryChassisID/SlotID/CpuID to confirm each failover group's primary/secondary pairing is intact. Comparing hh3cFailoverCurrentNum to hh3cFailoverMaxNum shows how many failover groups are in use versus the platform's supported maximum. A hh3cFailoverNotification event firing for a given hh3cFailoverName would indicate an actual switchover from primary to secondary occurred, warranting investigation into why the primary CPU/slot failed.

What Can Be Monitored

configured failover group primary/secondary node mapping
current vs. maximum failover group count
failover switchover notifications
failover group name/identity

Imported Objects

From HH3C-OID-MIB

hh3cCommon

OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE
Unsigned32

From SNMPv2-TC

DisplayString
RowStatus

How to Use in IPNetwork Monitor

Example using hh3cFailoverState OID:

Select an H3C modular router/switch with redundant supervisor/service module (failover groups) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type hh3cFailoverState into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. It reports the backup group state: Initial: No node in the failover group is processing services. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is an INTEGER-type OID, Value bounds is the most useful condition here — trigger an alert if the value is anything other than 'normal', since that indicates the condition this object reports has changed to one worth investigating. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
hh3cFailover	1.3.6.1.4.1.25506.2.164			This MIB file is to provide the definition of failover group. Such as: 1. Configure Failover Groups for a device and display Failover Groups and their status. 2. Assign CPU to the Failover Group, and display their status. Failover Group: A failover group contains a primary node and a secondary node. When a failover group is referenced by a service module, the primary node processes services and backs up service data to the secondary node. The secondary node does not process services, but it takes over the services when the primary node fails. When the primary node is recovered, traffic is switched to the primary node again.
hh3cFailoverScalarObjects	1.3.6.1.4.1.25506.2.164.1
U32 hh3cFailoverMaxNum	1.3.6.1.4.1.25506.2.164.1.1	Unsigned32	read-only	The maximum number of Failover groups which the system supported to create, does not include the AutoBackup.
U32 hh3cFailoverCurrentNum	1.3.6.1.4.1.25506.2.164.1.2	Unsigned32	read-only	The current number of Failover groups which the system has created, does not include the AutoBackup.
hh3cFailoverTables	1.3.6.1.4.1.25506.2.164.2
hh3cFailoverCfgTable	1.3.6.1.4.1.25506.2.164.2.1		not-accessible	This table is for configuration of backup group.
hh3cFailoverCfgEntry	1.3.6.1.4.1.25506.2.164.2.1.1		not-accessible	An entry of the hh3cFailoverGroupCfgTable.
U32 hh3cFailoverIndex	1.3.6.1.4.1.25506.2.164.2.1.1.1	Unsigned32	accessible-for-notify	Failover group ID is used as group index, the value range of failover group ID depends on the device model. The failover GroupIndex cannot be modified after creation.
STR hh3cFailoverName	1.3.6.1.4.1.25506.2.164.2.1.1.2	DisplayString	read-create	Specifies the backup group name, a case-sensitive string of 1 to 63 characters. The failover group name cannot be modified after creation. The name can not include '?', and can not begin or end with ' '.
I32 hh3cFailoverPrimaryChassisID	1.3.6.1.4.1.25506.2.164.2.1.1.3	Integer32	read-create	Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. (Distributed devices In IRF mode.) On a centralized or distributed device, the value for this node is always zero. Note:The -1 for delete the node.
I32 hh3cFailoverPrimarySlotID	1.3.6.1.4.1.25506.2.164.2.1.1.4	Integer32	read-create	Specifies a card by its slot number. (Distributed devices In standalone mode.) Note:The -1 for delete the node.
I32 hh3cFailoverPrimaryCpuID	1.3.6.1.4.1.25506.2.164.2.1.1.5	Integer32	read-create	Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot. Note:The -1 for delete the node.
I32 hh3cFailoverSecondaryChassisID	1.3.6.1.4.1.25506.2.164.2.1.1.6	Integer32	read-create	Specifies a card on an IRF member device. The chassis-number argument represents the member ID of the IRF member device. (Distributed devices In IRF mode.) On a centralized or distributed device, the value for this node is always zero. Note:The -1 for delete the node.
I32 hh3cFailoverSecondarySlotID	1.3.6.1.4.1.25506.2.164.2.1.1.7	Integer32	read-create	Specifies a card by its slot number. (Distributed devices In standalone mode.) Note:The -1 for delete the node.
I32 hh3cFailoverSecondaryCpuID	1.3.6.1.4.1.25506.2.164.2.1.1.8	Integer32	read-create	Specifies a CPU by its number. This option is available only if multiple CPUs are available on the specified slot. Note:The -1 for delete the node.
INT hh3cFailoverStateEx	1.3.6.1.4.1.25506.2.164.2.1.1.9	INTEGER	read-only	Backup group state: Initial: No node in the failover group is processing services. Normal: The primary node is processing services. Fault: The secondary node is processing services.
ROW hh3cFailoverRowStatus	1.3.6.1.4.1.25506.2.164.2.1.1.10	RowStatus	read-create	The status of this table entry. Only support active(1), createAndGo(4) and destroy(6).
hh3cFailoverNotification	1.3.6.1.4.1.25506.2.164.3
hh3cFailoverTrap	1.3.6.1.4.1.25506.2.164.3.0
NTF hh3cFailoverCreate	1.3.6.1.4.1.25506.2.164.3.0.1			The hh3cFailoverCreate trap indicates that the failover group has created.
NTF hh3cFailoverDelete	1.3.6.1.4.1.25506.2.164.3.0.2			The hh3cFailoverDelete trap indicates that the failover group has deleted.
NTF hh3cFailoverPrimaryNodeAdd	1.3.6.1.4.1.25506.2.164.3.0.3			The hh3cFailoverPrimaryNodeAdd trap indicates that the failover group has added the primary node.
NTF hh3cFailoverPrimaryNodeRemove	1.3.6.1.4.1.25506.2.164.3.0.4			The hh3cFailoverPrimaryNodeRemove trap indicates that the failover group has removed the primary node.
NTF hh3cFailoverSecondaryNodeAdd	1.3.6.1.4.1.25506.2.164.3.0.5			The hh3cFailoverSecondaryNodeAdd trap indicates that the failover group has added the secondary node.
NTF hh3cFailoverSecondaryNodeRemove	1.3.6.1.4.1.25506.2.164.3.0.6			The hh3cFailoverSecondaryNodeRemove trap indicates that the failover group has removed the secondary node.

RFC description

Vendor-private MIB for H3C/Huawei devices; manages high-availability failover and redundancy mechanisms.

Start monitoring H3C modular router/switch with redundant supervisor/service modules (failover groups) 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 HH3C-FAILOVER-MIB