Switch Memory and Configuration

Using the CLI To Implement Configuration Changes

3.Observe the switch’s performance with the new parameter settings to verify the effect of your changes.

4.When you are satisfied that you have the correct parameter settings, use the write memory command to copy the changes to the startup-config file.

Syntax: write memory

Saves the running configuration file to the startup-config. The saved configuration becomes the boot-up configuration of the switch on the next boot.

When using redundant management, saves the running configuration of the switch to flash on the active management module. The saved configuration becomes the boot-up configuration of the switch the next time it is booted. The saved configuration file is sync’d to the standby management module.

Note: If the active management module and the standby management module are running on different operating systems because the boot set-default command was executed and then the standby module was rebooted, the write memory command displays this warning: “Warning: The next reboot or failover is set to boot from a different software image. These config changes may be incompatible or not used after a reboot or failover.”

For example, the default port mode setting is auto. Suppose that your network uses Cat 3 wiring and you want to connect the switch to another autosensing device capable of 100 Mbps operation. Because 100 Mbps over Cat 3 wiring can introduce transmission problems, the recommended port mode is auto-10, which allows the port to negotiate full- or half-duplex, but restricts speed to 10 Mbps. The following command configures port A5 to auto-10 mode in the running-config file, allowing you to observe performance on the link without making the mode change permanent.

ProCurve(config)# interface e a5 speed-duplex auto-10

After you are satisfied that the link is operating properly, you can save the change to the switch’s permanent configuration (the startup-config file) by executing the following command:

ProCurve(config)# write memory

The new mode (auto-10) on port A5 is now saved in the startup-config file, and the startup-config and running-config files are identical. If you subsequently reboot the switch, the auto-10mode configuration on port A5 will remain because it is included in the startup-config file.

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