DHCP Static Binding on Cisco IOS

[ppitts]

We are replacing our Core L3 switch, but we would like to keep the DHCP bindings, so it will be less of a disruption.  Is it possible to export the current bindings from the old switch and import them into the new?

[Francesco Molino]

Hi

You can use the command ip dhcp database command to store all binding on a tftp or ftp drive.

Then if you configure the dhcpn pool on both switches, you'll avoid ip conflict.

Here a documentation you can read: 

https://www.cisco.com/c/en/us/td/docs/ios-xml/ios/ipaddr_dhcp/configuration/15-mt/dhcp-15-mt-book/config-dhcp-server.html