Extreme Networks ExtremeWare XOS Command Reference Manual page 1188

ExtremeWare XOS 11.5 supports only the Summit X450 family of switches and the BlackDiamond 8800 series switch.
STP Commands
Example
The following command configures STPD s1 to enable the rapid reconfiguration mechanism and operate
in 802.1w mode:
configure stpd s1 mode dot1w
The following command configures STPD s2 to operate as an MSTI in an MSTP domain:
configure stpd s2 mode mstp msti 3
History
This command was available in ExtremeWare XOS 10.1.
The parameter was added in ExtremeWare XOS 11.4.
mstp
Platform Availability
This command is available on all platforms.
1188
ExtremeWare XOS 11.5 Command Reference Guide