Core Issue
The fast memory shown in the show memory [summary] command output appears low on free memory, as shown in the following example:
GHQ52#show memory summary
Head Total(b) Used(b) Free(b) Lowest(b) Largest(b)
Processor 60F74EE0 17346848 9203984 8142864 8010664 7864900
Fast 60F54EE0 131072 130936 136 136 92
Resolution
No action is required in this situation because it is designed to operate this way.
The fast memory is a small amount (128k) of processor memory that has been set aside for use by hardware Interface Descriptor Blocks (IDBs). Should the router run out of fast memory, it will take memory from the regular processor memory pool.
