HP ProCurve Series 4100GL Management And Configuration Manual page 360

802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP)
802.1D Spanning-Tree Protocol (STP)
14-38
Figure 14-22. Example of a Configuration Supporting the
STP Topology Shown in Figure 14-20
Using the CLI To Configure Fast-Uplink STP. This example uses the CLI
to configure the switch for the fast-uplink operation shown in figures 14-20,
14-21, and 14-22. (The example assumes that ports A2 and A3 are already
configured as members of the port trunk—Trk1, and all other STP parameters
are left in their default state.)
Note that the default STP Protocol Version is RSTP (Rapid STP, or 802.1w).
Thus, if the switch is set to the STP default, you must change it to the STP
(802.1D) Protocol Version before you can configure Fast-Uplink. For example:
STP Enabled
on the
Switch
Fast-Uplink
STP
Configured
on Port 1 and
Trunk 1 (Trk1)