The show running global-ippool command displays statistics related to NAT memory consumption for a pool. The Size column displays the number of bytes of memory that the resource pool is using. The Ratio column displays the oversubscription ratio (for DIPP pools only). The lines of pool and memory statistics are explained in the following sample output:

On the PA-7500 Series running PAN-OS 12.1.8 and later, NAT shared memory is increased by 400 MB to support the expanded DIPP NAT pool capacity. When you run show running global-ippool on a PA-7500 after upgrading to PAN-OS 12.1.8, the usable NAT shared memory displayed reflects this increase. Note that the displayed usable NAT shared memory is half of the total NAT shared memory because the other half is automatically reserved for commit-time processing.

For NAT pool statistics for a virtual system, the show running ippool command has columns indicating the memory size used per NAT rule and the oversubscription ratio used (for DIPP rules). The following is sample output for the command.

A field in the output of the show running nat-rule-ippool rule command shows the memory (bytes) used per NAT rule. The following is sample output for the command, with the memory usage for the rule encircled.