BDCOM-MEMORY-POOL-MIB

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Organization: BDCOM, Inc.

Last Updated: 2003-10-16

Category: Hardware and Environment, Vendor: BDCOM

Description: Monitors memory pool utilization, allocation statistics, and free memory on BDCOM networking devices.

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What Is BDCOM-MEMORY-POOL-MIB?

BDCOM-MEMORY-POOL-MIB is a proprietary BDCOM MIB for monitoring memory pool allocation and utilization on BDCOM networking devices. It exposes a memory pool table (pool type, name, validity, used/free bytes, largest free block) and a utilization table tracking rolling one-minute utilization percentages per pool. This is a direct device-health MIB: bdcomMemoryPoolUsed/Free and bdcomMemoryPoolUtilization1Min let an admin detect memory exhaustion or a leak on the device's control-plane memory, a leading indicator of instability, process crashes, or an unplanned reload. It is a standalone vendor MIB with no notable external dependency, though it parallels concepts found in the standard HOST-RESOURCES memory objects. It is used across BDCOM switches and routers for capacity planning and early detection of memory pressure before a device becomes unresponsive. Engineers can download the BDCOM-MEMORY-POOL-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in BDCOM-MEMORY-POOL-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

BDCOM switch/router

Monitoring Examples

Walking bdcomMemoryPoolTable/bdcomMemoryPoolEntry by pool name returns bdcomMemoryPoolUsed, bdcomMemoryPoolFree, and bdcomMemoryPoolLargestFree for each pool, while bdcomMemoryPoolUtilizationTable's bdcomMemoryPoolUtilization1Min gives a rolling utilization percentage. A pool where bdcomMemoryPoolFree steadily shrinks while bdcomMemoryPoolUtilization1Min climbs toward 100% indicates a memory leak or resource exhaustion that could soon trigger process crashes or a device reload.

What Can Be Monitored

memory pool used/free bytes
largest free memory block
1-minute memory pool utilization
memory pool validity
memory pool type/name

Imported Objects

From BDCOM-QOS-PIB-MIB

Percent

From BDCOM-SMI

bdMgmt

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString
TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using bdcomMemoryPoolUsed OID:

Select a BDCOM networking equipment (switches/routers) 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 bdcomMemoryPoolUsed 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. Indicates the number of bytes from the memory pool that are currently in use by applications on the managed device. 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 a Gauge32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline (in bytes), since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
bdcomMemoryPoolMIB	1.3.6.1.4.1.3320.9.48			MIB module for monitoring memory pools
bdcomMemoryPoolObjects	1.3.6.1.4.1.3320.9.48.1
bdcomMemoryPoolTable	1.3.6.1.4.1.3320.9.48.1.1		not-accessible	A table of memory pool monitoring entries.
bdcomMemoryPoolEntry	1.3.6.1.4.1.3320.9.48.1.1.1		not-accessible	An entry in the memory pool monitoring table.
BDC bdcomMemoryPoolType	1.3.6.1.4.1.3320.9.48.1.1.1.1	BDCOMMemoryPoolTypes	not-accessible	The type of memory pool for which this entry contains information.
STR bdcomMemoryPoolName	1.3.6.1.4.1.3320.9.48.1.1.1.2	DisplayString	read-only	A textual name assigned to the memory pool. This object is suitable for output to a human operator, and may also be used to distinguish among the various pool types, especially among dynamic pools.
I32 bdcomMemoryPoolAlternate	1.3.6.1.4.1.3320.9.48.1.1.1.3	Integer32	read-only	Indicates whether or not this memory pool has an alternate pool configured. Alternate pools are used for fallback when the current pool runs out of memory. If an instance of this object has a value of zero, then this pool does not have an alternate. Otherwise the value of this object is the same as the value of bdcomMemoryPoolType of the alternate pool.
T/F bdcomMemoryPoolValid	1.3.6.1.4.1.3320.9.48.1.1.1.4	TruthValue	read-only	Indicates whether or not the remaining objects in this entry contain accurate data. If an instance of this object has the value false (which in and of itself indicates an internal error condition), the values of the remaining objects in the conceptual row may contain inaccurate information (specifically, the reported values may be less than the actual values).
G32 bdcomMemoryPoolUsedEx	1.3.6.1.4.1.3320.9.48.1.1.1.5	Gauge32	read-only	Indicates the number of bytes from the memory pool that are currently in use by applications on the managed device.
G32 bdcomMemoryPoolFree	1.3.6.1.4.1.3320.9.48.1.1.1.6	Gauge32	read-only	Indicates the number of bytes from the memory pool that are currently unused on the managed device. Note that the sum of bdcomMemoryPoolUsed and bdcomMemoryPoolFree is the total amount of memory in the pool
G32 bdcomMemoryPoolLargestFree	1.3.6.1.4.1.3320.9.48.1.1.1.7	Gauge32	read-only	Indicates the largest number of contiguous bytes from the memory pool that are currently unused on the managed device.
bdcomMemoryPoolUtilizationTable	1.3.6.1.4.1.3320.9.48.1.2		not-accessible	A table of memory pool utilization entries. Each of the objects provides a general idea of how much of the memory pool has been used over a given period of time. It is determined as a weighted decaying average.
bdcomMemoryPoolUtilizationEntry	1.3.6.1.4.1.3320.9.48.1.2.1		not-accessible	An entry in the memory pool utilization table.
PER bdcomMemoryPoolUtilization1Min	1.3.6.1.4.1.3320.9.48.1.2.1.1	Percent	read-only	This is the memory pool utilization for 1 minute.
PER bdcomMemoryPoolUtilization5Min	1.3.6.1.4.1.3320.9.48.1.2.1.2	Percent	read-only	This is the memory pool utilization for 5 minutes.
PER bdcomMemoryPoolUtilization10Min	1.3.6.1.4.1.3320.9.48.1.2.1.3	Percent	read-only	This is the memory pool utilization for 10 minutes.
bdcomMemoryPoolNotifications	1.3.6.1.4.1.3320.9.48.2
bdcomMemoryPoolConformance	1.3.6.1.4.1.3320.9.48.3
bdcomMemoryPoolCompliances	1.3.6.1.4.1.3320.9.48.3.1
bdcomMemoryPoolCompliance	1.3.6.1.4.1.3320.9.48.3.1.1			The compliance statement for entities which implement the BDCOM Memory Pool MIB
bdcomMemoryPoolComplianceRev1	1.3.6.1.4.1.3320.9.48.3.1.2			The compliance statement for entities which implement the BDCOM Memory Pool MIB
bdcomMemoryPoolGroups	1.3.6.1.4.1.3320.9.48.3.2
bdcomMemoryPoolGroup	1.3.6.1.4.1.3320.9.48.3.2.1			A collection of objects providing memory pool monitoring.
bdcomMemoryPoolUtilizationGroup	1.3.6.1.4.1.3320.9.48.3.2.2			An optional group providing a collection of memory pool utilization objects.

RFC description

Bdcom vendor-private MIB for managing memory pool allocation, usage, and thresholds on their networking equipment.

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Download BDCOM-MEMORY-POOL-MIB