CISCO-ENHANCED-MEMPOOL-MIB

TEXTUAL-CONVENTION

A unique value, greater than zero, for each buffer pool in the memory pool on a physical entity. It is recommended that values are assigned contiguously starting from 1 such that the index will be unique within a physical entity. Note that the index does not overlap among different memory pools.

TEXTUAL-CONVENTION

A unique value, greater than zero, for each memory pool in a particular physical entity. It is recommended that values are assigned contiguously starting from 1 such that the index will be unique within a particular physical entity.

TEXTUAL-CONVENTION

This textual convention is an extension of the CempMemPoolIndex. The latter defines a value greater than zero to identify a memory pool in a particular physical entity. This extension permits the additional value of zero. The value zero is object-specific and must therefore be defined as part of the description of any object which uses this syntax. Examples of the usage of zero might include situations where memory pool was unknown, or when none or all memory pools need to be referenced.

TEXTUAL-CONVENTION

Represents the different types of memory pools that may be present in a managed device. Note that only the processor pool is required to be supported by all devices. Support for other pool types is dependent on the device being managed. processorMemory - processor associated heap memory. ioMemory - shared memory for buffer data and controller descriptor blocks. pciMemory - Peripheral Component Interconnect bus memory which is visible to all devices on the PCI buses in a platform. fastMemory - memory defined by the particular platform for speed critical applications. multibusMemory - memory present on some platforms that is used as a fallback pool. interruptStackMemory - memory for allocating interrupt stacks. It is usually allocated from heap. processStackMemory - memory for allocating process stacks. It is usually allocated from heap. localExceptionMemory - memory reserved for processing a system core dump. virtualMemory - memory used to increase available RAM. reservedMemory - memory used for packet headers, particle headers and particles. imageMemory - memory which corresponds to the image file system. asicMemory - Application Specific Integrated Circuit memory. posixMemory - Heap memory associated with posix style processes in ion.

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-TYPE

A table of memory pool monitoring entries for all physical entities on a managed system.

OBJECT-TYPE

An entry in the memory pool monitoring table.

OBJECT-TYPE

Within each physical entity, the unique value greater than zero, used to represent each memory pool. It is recommended that values are assigned contiguously starting from 1.

OBJECT-TYPE

The type of memory pool for which this entry contains information.

OBJECT-TYPE

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.

OBJECT-TYPE

An indication of the platform-specific memory pool type. The associated instance of cempMemPoolType is used to indicate the general type of memory pool. If no platform specific memory hardware type identifier exists for this physical entity, or the value is unknown by this agent, then the value { 0 0 } is returned.

OBJECT-TYPE

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 cempMemPoolType of the alternate pool.

OBJECT-TYPE

Indicates whether or not cempMemPoolUsed, cempMemPoolFree, cempMemPoolLargestFree and cempMemPoolLowestFree 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 these objects in the conceptual row may contain inaccurate information (specifically, the reported values may be less than the actual values).

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently in use by applications on the physical entity.

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently unused on the physical entity. Note that the sum of cempMemPoolUsed and cempMemPoolFree is the total amount of memory in the pool

OBJECT-TYPE

Indicates the largest number of contiguous bytes from the memory pool that are currently unused on the physical entity.

OBJECT-TYPE

The lowest amount of available memory in the memory pool recorded at any time during the operation of the system.

OBJECT-TYPE

Indicates the lowest number of bytes from the memory pool that have been used by applications on the physical entity since sysUpTime.Similarly,the Used High Watermark indicates the largest number of bytes from the memory pool that have been used by applications on the physical entity since sysUpTime.This can be derived as follows: Used High Watermark = cempMemPoolUsed + cempMemPoolFree - cempMemPoolLowestFree.

OBJECT-TYPE

Indicates the number of successful allocations from the memory pool

OBJECT-TYPE

Indicates the number of unsuccessful allocations from the memory pool

OBJECT-TYPE

Indicates the number of successful frees/ deallocations from the memory pool

OBJECT-TYPE

Indicates the number of unsuccessful attempts to free/deallocate memory from the memory pool. For example, this could be due to ownership errors where the application that did not assign the memory is trying to free it.

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently shared on the physical entity.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolUsed. This object needs to be supported only if the used bytes in the memory pool exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently in use by applications on the physical entity. This object is a 64-bit version of cempMemPoolUsed.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolFree. This object needs to be supported only if the unused bytes in the memory pool exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently unused on the physical entity. This object is a 64-bit version of cempMemPoolFree.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolLargestFree. This object needs to be supported only if the value of cempMemPoolLargestFree exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

Indicates the largest number of contiguous bytes from the memory pool that are currently unused on the physical entity. This object is a 64-bit version of cempMemPoolLargestFree.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolLowestFree. This object needs to be supported only if the value of cempMemPoolLowestFree exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

The lowest amount of available memory in the memory pool recorded at any time during the operation of the system. This object is a 64-bit version of cempMemPoolLowestFree.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolUsedLowWaterMark. This object needs to be supported only if the value of cempMemPoolUsedLowWaterMark exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

Indicates the lowest number of bytes from the memory pool that have been used by applications on the physical entity since sysUpTime. This object is a 64-bit version of cempMemPoolUsedLowWaterMark.

OBJECT-TYPE

This object represents the upper 32-bits of cempMemPoolShared. This object needs to be supported only if the value of cempMemPoolShared exceeds 32-bits, otherwise this object value would be set to 0.

OBJECT-TYPE

Indicates the number of bytes from the memory pool that are currently shared on the physical entity. This object is a 64-bit version of cempMemPoolShared.

OBJECT-TYPE

Entries in this table define entities (buffer pools in this case) which are contained in an entity (memory pool) defined by an entry from cempMemPoolTable. -- Basic Pool Architecture -- 1)Pools are classified as being either Static or Dynamic. Static pools make no attempt to increase the number of buffers contained within them if the number of free buffers (cempMemBufferFree) are less than the number of minimum buffers (cempMemBufferMin). With Dynamic pools, the pool attempts to meet the demands of its users. 2)Buffers in a pool are classified as being either Permanent or Temporary. Permanent buffers, as their name suggests, are always in the pool and are never destroyed unless the number of permanent buffers (cempMemBufferPermanent) is changed. Temporary buffers are transient buffers that are created in dynamic pools whenever the free count (cempMemBufferFree) of buffers in the pool drops below the minimum (cempMemBufferMin). 3)Buffers pools are classified as either Public or Private. Public pools are available for all users to allocate buffers from. Private pools are primarily used by interface drivers.

OBJECT-TYPE

This contains all the memory buffer pool configurations object values. The entPhysicalIndex identifies the entity on which memory buffer pools are present.

OBJECT-TYPE

Within a physical entity, a unique value used to represent each buffer pool.

OBJECT-TYPE

This index corresponds to the memory pool (with cemMemPoolIndex as index in cempMemPoolTable) from which buffers are allocated.

OBJECT-TYPE

A textual name assigned to the buffer pool. This object is suitable for output to a human operator, and may also be used to distinguish among the various buffer types. For example: 'Small', 'Big', 'Serial0/1' etc.

OBJECT-TYPE

Boolean poolDynamic; if TRUE, the number of buffers in the pool is adjusted (adding more packet buffers or deleting excesses) dynamically by the background process. If FALSE, the number of buffers in the pool is never adjusted, even if it falls below the minimum, or to zero.

OBJECT-TYPE

Indicates the size of buffer element in number of bytes on the physical entity.

OBJECT-TYPE

Indicates the minimum number of free buffers allowed in the buffer pool or low-water mark (lwm). For example of its usage : If cempMemBufferFree < cempMemBufferMin & pool is dynamic, then signal for growth of particular buffer pool.

OBJECT-TYPE

Indicates the maximum number of free buffers allowed in the buffer pool or high-water mark (hwm). For example of its usage : If cempMemBufferFree > cempMemBufferMax & pool is dynamic, then signal for trim of particular buffer pool.

OBJECT-TYPE

Indicates the total number of permanent buffers in the pool on the physical entity.

OBJECT-TYPE

Indicates the initial number of temporary buffers in the pool on the physical entity. This object instructs the system to create this many number of temporary extra buffers, just after a system restart. A change in this object will be effective only after a system restart.

OBJECT-TYPE

Indicates the total number of buffers (include allocated and free buffers) in the buffer pool on the physical entity.

OBJECT-TYPE

Indicates the current number of free buffers in the buffer pool on the physical entity. Note that the cempMemBufferFree is less than or equal to cempMemBufferTotal.

OBJECT-TYPE

Indicates the number of buffers successfully allocated from the buffer pool.

OBJECT-TYPE

Indicates the number of times a buffer has been requested, but no buffers were available in the buffer pool, or when there were fewer than min buffers(cempMemBufferMin) in the buffer pool. Note : For interface pools, a miss is actually a fall back to its corresponding public buffer pool.

OBJECT-TYPE

Indicates the number of successful frees/deallocations from the buffer pool.

OBJECT-TYPE

Indicates the number of unsuccessful attempts to free/deallocate a buffer from the buffer pool. For example, this could be due to ownership errors where the application that did not assign the buffer is trying to free it.

OBJECT-TYPE

This value is the difference of the desired number of permanent buffer & total number of permanent buffers present in the pool. A positive value of this object tells the number of buffers needed & a negative value of the object tells the extra number of buffers in the pool.

OBJECT-TYPE

Indicates the peak number of buffers in pool on the physical entity.

OBJECT-TYPE

Indicates the time of most recent change in the peak number of buffers (cempMemBufferPeak object) in the pool.

OBJECT-TYPE

The number of buffers that have been trimmed from the pool when the number of free buffers (cempMemBufferFree) exceeded the number of max allowed buffers(cempMemBufferMax).

OBJECT-TYPE

The number of buffers that have been created in the pool when the number of free buffers(cempMemBufferFree) was less than minimum(cempMemBufferMix).

OBJECT-TYPE

The number of failures to grant a buffer to a requester due to reasons other than insufficient memory. For example, in systems where there are different execution contexts, it may be too expensive to create new buffers when running in certain contexts. In those cases it may be preferable to fail the request.

OBJECT-TYPE

The number of times the system tried to create new buffers, but could not due to insufficient free memory in the system.

OBJECT-TYPE

A table that lists the cache buffer pools configured on a managed system. 1)To provide a noticeable performance boost, Cache Pool can be used. A Cache Pool is effectively a lookaside list of free buffers that can be accessed quickly. Cache Pool is tied to Buffer Pool. 2)Cache pools can optionally have a threshold value on the number of cache buffers used in a pool. This can provide flow control management by having a implementation specific approach such as invoking a vector when pool cache rises above the optional threshold set for it on creation.

OBJECT-TYPE

Each entry represents one of the cache buffer pools available in the system and it contains the parameters configured for it. Note : cempMemBufferCachePoolTable has a sparse dependency with cempMemBufferPoolTable (i.e all the entires in cempMemBufferPoolTable need not have an entry in cempMemBufferCachePoolTable.

OBJECT-TYPE

Indicates the number of buffers in the cache pool on the physical entity.

OBJECT-TYPE

Indicates the maximum number of free buffers allowed in the cache pool.

OBJECT-TYPE

Indicates the number of cache buffers from the pool that are currently used on the physical entity. Note that the cempMemBufferCacheUsed is less than or equal to cempMemBufferCacheTotal.

OBJECT-TYPE

Indicates the number of buffers successfully allocated from the cache pool.

OBJECT-TYPE

Indicates the number of times a buffer has been requested, but no buffers were available in the cache pool.

OBJECT-TYPE

Indicates the threshold limit for number of cache buffers used(cempMemBufferCacheUsed).

OBJECT-TYPE

Indicates how many times the number of cache buffers used(cempMemBufferCacheUsed) has crossed the threshold value(cempMemBufferCacheThreshold).

OBJECT-IDENTITY

OBJECT-TYPE

This variable controls generation of the cempMemBufferNotify. When this variable is 'true', generation of cempMemBufferNotify is enabled. When this variable is 'false', generation of cempMemBufferNotify is disabled.

OBJECT-IDENTITY

OBJECT-IDENTITY

OBJECT-IDENTITY