Foundry Networks Switch and Router Installation And Configuration Manual page 825

Network Address Translation
The following command saves all the configuration changes above to the Layer 3 Switch's startup-config file on
flash memory. The Layer 3 Switch applies NAT configuration information as soon as you enter it into the CLI.
Saving the changes to the startup-config file ensures that the changes are reinstated following a system reload.
BigIron(config)# write memory
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