Hi,
Here is explanation for the counters; for more detail pls refer cisco press book "Inside Cisco IOS Software Architecture"
total—The total number of buffers in the pool (both allocated and free).
permanent—The base number of buffers in the pool. For dynamic pools, the total number of buffers can fluctuate as the pool grows and shrinks. However, there will never be less than the permanent number of buffers in the pool.
in free list—Indicates the number of free buffers available.
min—The minimum number of buffers desired in the free list. If the number of free buffers drops below min, the buffer pool manager attempts to grow the pool and add more buffers until the number of free buffers is greater than min.
max allowed—The maximum number of buffers desired in the free list. If the number of free buffers increases beyond max allowed, the buffer pool manager attempts to shrink the pool, deleting free buffers, until the number of free buffers drops below max allowed. Note that the buffer pool manager never shrinks the size of the pool below the permanent metric regardless of the value of max allowed.
hits—The number of buffers that have been requested from the pool.
fallbacks—The number of times the interface processor had to fall back to the public buffer pools to find a buffer in which to store a packet.
max cache size—Some number of buffers in each private buffer pool are cached for faster access; this is the maximum number of buffers that can be cached.
in cache—The number of cached private buffers.
Regards,
Lei Tian
