HP procurve 5300xl Series Access Security Manual page 262

Configuring and Monitoring Port Security
Operating Notes for Port Security
9-38
HPswitch(config)# port-security e a17 learn-mode static
address-limit 2
LACP has been disabled on secured port(s).
HPswitch(config)#
The switch will not allow you to configure LACP on a port on which port
security is enabled. For example:
HPswitch(config)# int e a17 lacp passive
Error configuring port A17: LACP and port security cannot
be run together.
HPswitch(config)#
To restore LACP to the port, you must remove port security and re-enable
LACP active or passive.