HP procurve 8100fl series Management And Configuration Manual page 137

[point-to-point-mac < force-true | force-false | auto >]
This parameter informs the switch of the type of device to which
a specific port connects.
Force-True (default): Indicates a point-to-point link to a device
such as a switch, bridge, or end-node.
Force-False: Indicates a connection to a hub (which is a shared
LAN segment).
Auto: Causes the switch to set Force-False on the port if it is not
running at full duplex. (Connections to hubs are half-duplex.)
[priority < priority-multiplier>]
MSTP uses this parameter to determine the port(s) to use for
forwarding. The port with the lowest priority number has the
highest priority. The range is 0 to 240, and is configured by
specifying a multiplier in the range of 0 - 15. That is, when you
specify a priority multiplier of 0 - 15, the actual priority
assigned to the switch is:
For example, if you configure "2" as the priority multiplier on a
given port, then the actual Priority setting is 32. Thus, after you
specify the port priority multiplier, the switch displays the
actual port priority (and not the multiplier) in the show
spanning-tree or show spanning-tree <interface-id> displays.
You can view the actual multiplier setting for ports by executing
show running and looking for an entry in this format:
spanning-tree priority < priority-multiplier >
For example, configuring port Gig5/2 with a priority multiplier
of "3" results in this line in the show running output:
int Gig5/2
spanning-tree priority 3
Spanning-Tree Operation
(priority-multiplier) x 16
Configuring MSTP
9-21