HP FlexNetwork MSR2003 Configuration Manual page 25

You can use this command to enable the device to display error messages before sending a
gratuitous ARP reply or request for conflict confirmation.
To enable IP conflict notification:
Step
1. Enter system view.
2. Enable IP conflict
notification.
Command
system-view
arp ip-conflict log prompt
11
Remarks
N/A
By default, IP conflict notification is
disabled.