show blocks/clear blocks

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Show system buffer utilization. (Privileged mode.)

clear blocks
show blocks

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Usage Guidelines

The show blocks command lists preallocated system buffer utilization. In the show blocks listing, the SIZE column displays the block type. The MAX column is the maximum number of allocated blocks. The LOW column is the fewest blocks available since last reboot. The CNT column is the current number of available blocks. A zero in the LOW column indicates a previous event where memory exhausted. A zero in the CNT column means memory is exhausted now. Exhausted memory is not a problem as long as traffic is moving through the firewall. You can use the show conn command to see if traffic is moving. If traffic is not moving and the memory is exhausted, a problem may be indicated.

The clear blocks command keeps the maximum count to whatever number is allocated in the system and equates the low count to the current count.

You can also view the information from the show blocks command using SNMP.

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Examples

The following is sample output from the show blocks command:

    show blocks

    SIZE    MAX    LOW    CNT 

       4   1600   1600   1600
      80    100     97     97
     256     80     79     79
    1550    788    402    404
   65536      8      8      8

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