HP ProCurve Series 4100GL Management And Configuration Manual page 333

802.1w Rapid Spanning Tree Protocol (RSTP) and 802.1d Spanning Tree Protocol (STP)
Configuring Rapid Reconfiguration Spanning Tree (RSTP)
In the default configuration, the output from this command appears similar to
the following:
Figure 14-3. Example of the Spanning Tree Configuration Display
Enabling or Disabling RSTP. Issuing the command to enable spanning
tree on the switch implements, by default, the RSTP version of spanning tree
for all physical ports on the switch. Disabling spanning tree removes protec­
tion against redundant network paths.
Syntax: [no] spanning-tree
Abbreviation: [no] span
This command enables spanning tree with the current parameter settings or
disables spanning tree, using the "no" option, without losing the most-recently
configured parameter settings.
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