NOKIA-ALCHEMYOS-CLUSTER-MIB

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Organization: Nokia Internet Communications.

Last Updated: 2001-01-18

Category: Load Balancing / High Availability, Nokia AlchemyOS / Clustering, System Management & Provisioning

Description: Manages Nokia AlchemyOS appliance cluster membership, node state, and failover configuration.

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What Is NOKIA-ALCHEMYOS-CLUSTER-MIB?

NOKIA-ALCHEMYOS-CLUSTER-MIB is a vendor MIB from Nokia for AlchemyOS-based appliances that manages high-availability cluster membership, node roles, and failover configuration across a group of clustered devices, as reflected in its module description. It exposes cluster topology and health data: cluster name and address information, per-member IP addresses, workload distribution, and identification of the master/primary node. Its monitoring value is centered on software/cluster-state health: confirming the correct number of members are present and reachable, which node currently holds the master role, and how workload is distributed, which is essential for detecting a failed node or a split-brain/failover event in the cluster. No explicit dependency on other MIBs is documented, though the cluster model implies the underlying AlchemyOS platform infrastructure. It is deployed on Nokia AlchemyOS appliances configured in high-availability clusters, typically in service-provider or enterprise network appliance deployments requiring failover resilience. Network engineers evaluating or troubleshooting this functionality can download the NOKIA-ALCHEMYOS-CLUSTER-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NOKIA-ALCHEMYOS-CLUSTER-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

Nokia AlchemyOS appliance cluster

Monitoring Examples

An operator would poll clusterMemberInfoNumMembers to confirm the expected number of nodes are part of the cluster, then walk clusterMemberTable (indexed by clusterMemberIndex) checking clusterMemberPrimaryIPAddr, clusterMemberWorkload, and clusterMemberMaster to identify which node is acting as master and whether workload is balanced; a drop in member count or an unexpected change in clusterMemberMaster would indicate a node failure or failover event requiring investigation. clusterAddrTable provides the set of cluster-level addresses for cross-checking reachability.

What Can Be Monitored

cluster member count
cluster master/primary node identity
per-member IP address
per-member workload distribution
cluster address configuration

Imported Objects

From NOKIA-ALCHEMYOS-MIB

alchemyOSModules	OBJECT-IDENTITY
alchemyOSTraps	OBJECT-IDENTITY
cryptoCluster	OBJECT-IDENTITY

From SNMPv2-SMI

Integer32
IpAddress
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using clusterMemberInfoNumMembers OID:

Select a Nokia AlchemyOS appliance cluster 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 clusterMemberInfoNumMembers into the Find box to locate it in the OID tree, then select it and click OK. The number of members in this cluster. 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 count changes from its expected baseline, since that would indicate the underlying set of items changed unexpectedly. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
STR clusterInfoName	1.3.6.1.4.1.94.1.45.2.1.1	DisplayString	read-only	The name of this cluster.
INT clusterMemberInfoNumMembersEx	1.3.6.1.4.1.94.1.45.2.1.2	INTEGER	read-only	The number of members in this cluster.
clusterAddrTable	1.3.6.1.4.1.94.1.45.2.1.3		not-accessible	The list of IP addresses for this cluster.
clusterAddrEntry	1.3.6.1.4.1.94.1.45.2.1.3.1		not-accessible	Cluster IP addresses.
INT clusterAddrIndex	1.3.6.1.4.1.94.1.45.2.1.3.1.1	INTEGER	read-only	The index of the member list for this cluster.
IP clusterInfoAddrs	1.3.6.1.4.1.94.1.45.2.1.3.1.2	IpAddress	read-only	The list of the cluster's IP addresses.
clusterMemberTable	1.3.6.1.4.1.94.1.45.2.1.4		not-accessible	A list of information, one entry for each member of the cluster.
clusterMemberEntry	1.3.6.1.4.1.94.1.45.2.1.4.1		not-accessible	A table entry containing information about a member of the cluster.
INT clusterMemberIndex	1.3.6.1.4.1.94.1.45.2.1.4.1.1	INTEGER	read-only	A unique value for each member in the cluster. The value ranges between 1 and the value of clusterMemberInfoNumMembers.
IP clusterMemberPrimaryIPAddr	1.3.6.1.4.1.94.1.45.2.1.4.1.2	IpAddress	read-only	The member's primary IP address.
INT clusterMemberWorkload	1.3.6.1.4.1.94.1.45.2.1.4.1.3	INTEGER	read-only	The member's workload.
INT clusterMemberMaster	1.3.6.1.4.1.94.1.45.2.1.4.1.4	INTEGER	read-only	Is this member the master.
clusterMemberSecondaryIPAddrTable	1.3.6.1.4.1.94.1.45.2.1.5		not-accessible	A table of secondary IP addresses for this cluster member.
clusterMemberSecondaryIPAddrEntry	1.3.6.1.4.1.94.1.45.2.1.5.1		not-accessible	List of the secondary (outside) addresses of the cluster members. This is only valid if this member is the master node of the cluster.
IP clusterMemberSecondaryIPAddr	1.3.6.1.4.1.94.1.45.2.1.5.1.1	IpAddress	read-only	One member of the cluster's secondary IP address.
I32 clusterMemberSecondaryIPAddrIndex	1.3.6.1.4.1.94.1.45.2.1.5.1.2	Integer32	not-accessible	Second index for clusterMemberSecondaryIPAddrTable. The first entry has index 1, the second 2, etc.
processTable	1.3.6.1.4.1.94.1.45.2.1.6		not-accessible	A table containing information on running processes/threads.
processEntry	1.3.6.1.4.1.94.1.45.2.1.6.1		not-accessible	An entry containing a process/thread name.
INT processIndex	1.3.6.1.4.1.94.1.45.2.1.6.1.1	INTEGER	read-only	Reference Iindex for each process.
STR processName	1.3.6.1.4.1.94.1.45.2.1.6.1.2	DisplayString	read-only	The process name.
IP externalIPAddress	1.3.6.1.4.1.94.1.45.2.1.7	IpAddress	read-only	The external IP address.
nokiaAlchemyOSClusterMIB	1.3.6.1.4.1.94.1.45.5.2			Cluster MIB module.
alchemyOSTrap0	1.3.6.1.4.1.94.1.45.6.0			Trap.
NTF clusterMemberJoin	1.3.6.1.4.1.94.1.45.6.0.1			Signifies that a member node has joined the cluster.
NTF clusterMemberLeft	1.3.6.1.4.1.94.1.45.6.0.2			Signifies that a node has left the cluster.
NTF clusterMemberBecameMaster	1.3.6.1.4.1.94.1.45.6.0.3			Sent when a node has been made the master.
NTF cpuUtilExceeded	1.3.6.1.4.1.94.1.45.6.0.4			Sent when CPU utilisation exceeds defined limit.
NTF ioLoadExceeded	1.3.6.1.4.1.94.1.45.6.0.5			Sent when IO load exceeds defined limit.
NTF droppedUdpPacketsExceeded	1.3.6.1.4.1.94.1.45.6.0.6			Sent when UDP drop rate exceeds defined limit.
NTF memUsageExceeded	1.3.6.1.4.1.94.1.45.6.0.7			Sent when memory usage exceeds defined limit.
NTF droppedIpPacketsExceeded	1.3.6.1.4.1.94.1.45.6.0.8			Sent when IP packet drop rate exceeds defined limit.
NTF gatedConfigError	1.3.6.1.4.1.94.1.45.6.0.9			Sent when GATED detects errors in configuration and cannot proceed.
NTF informAddress	1.3.6.1.4.1.94.1.45.6.0.10			Sent to inform dynamic external interface address.

RFC description

Manages cluster membership information and IP address configuration for Nokia AlchemyOS systems.

Start monitoring Nokia AlchemyOS appliance cluster 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 NOKIA-ALCHEMYOS-CLUSTER-MIB