HP 6120XG ProCurve Series 6120 Blade Switches Management and Configuration Gui - Page 187
Enabling IP Preserve, Example of Implementing IP Preserve in a Configuration File
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Configuring IP Addressing IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads Enabling IP Preserve To set up IP Preserve, enter the ip preserve statement at the end of a configuration file. (Note that you do not execute IP Preserve by entering a command from the CLI). Entering "ip preserve" in the last line of a configuration file implements IP Preserve when the file is downloaded to the switch and the switch reboots. Figure 8-6. Example of Implementing IP Preserve in a Configuration File For example, consider Figure 8-7: TFTP Server config. Management Station DHCP Server IP Address Switch 1 VLAN 1: 10.31.22.101 Switch 2 VLAN 1: 10.31.22.102 Switch 3 VLAN 1: 10.31.22.103 Switch 4 VLAN 1: DHCP Switches 1 through 3 copy and implement the config.txt file from the TFTP server (figure 8-8), but retain their current IP Switch 4 also copies and implements the config.txt file from the TFTP server (figure 8-8), but acquires new IP addressing from the DHCP Figure 8-7. Example of IP Preserve Operation with Multiple Series Switches If you apply the following configuration file to figure 8-7, switches 1 - 3 will retain their manually assigned IP addressing and switch 4 will be configured to acquire its IP addressing from a DHCP server. 8-17