131
Enhancements in Release F.04.08
IP Preserve: Retaining VLAN-1 IP Addressing Across Configuration File Downloads
If you apply this configuration file to figure 60, switches 1 - 3 will still retain their manually assigned
IP addressing. However, switch 4 will be configured with the IP addressing included in the file.
Figure 62. Configuration File in TFTP Server, with Dedicated IP Addressing Instead of DHCP/Bootp
To summarize the IP Preserve effect on IP addressing:
■ If the switch received its most recent VLAN 1 IP addressing from a DHCP/Bootp server, it
ignores the IP Preserve command when it downloads the configuration file, and implements
whatever IP addressing instructions are in the configuration file.
■ If the switch did not receive its most recent VLAN 1 IP addressing from a DHCP/Bootp server,
it retains its current IP addressing when it downloads the configuration file.
■ The content of the downloaded configuration file determines the IP addresses and subnet
masks for other VLANs.
Because switch 4 (figure 60) received its
most recent IP addressing from a DHCP/
Bootp server, the switch ignores the ip
preserve command and implements the
IP addressing included in this file.