Extreme Networks ExtremeWare Command Reference Manual page 1096

Security Commands
History
This command was first available in ExtremeWare 6.2a.
This command was added to the Summit "e" series of switches in ExtremeWare 7.3e; it was added to
the "i" series of switches in ExtremeWare 7.3.0.
Platform Availability
Beginning with ExtremeWare 7.4, this command is available in all platforms using SSH image except for
the Summit "i" platform switches using SSH Base image (.SBxtr)
1096 ExtremeWare 7.7 Command Reference Guide