HP PROCURVE 2610 Advanced Traffic Management Manual page 127

Syntax:
spanning-tree [ethernet] < port-list >
path-cost < 1 - 200000000 >
point-to-point-mac < force-true | force-false | auto >
priority < 0 - 15 >
[no] spanning-tree [ethernet] < port-list >
edge-port
mcheck
Defaults: see the table on the previous page.
Note on Path Cost
RSTP and MSTP implement a greater range of path costs and new default path
cost values to account for higher network speeds. These values are different
than the values defined by 802.1D STP as shown below.
Because the maximum value for the path cost allowed by 802.1D STP is 65535,
devices running that version of spanning tree cannot be configured to match
the values defined by RSTP and MSTP, at least for 10 Mbps and 100 Mbps
ports. In LANs where there is a mix of devices running 802.1D STP, RSTP, and/
or MSTP, you should reconfigure the devices so the path costs match for ports
with the same network speeds.
Port Type 802.1D STP Path Cost
10 Mbps 100
100 Mbps 10
1 Gbps 5
Configuring Rapid Reconfiguration Spanning Tree (RSTP)
Abbreviations:
span < port-list >
path <1 - 200000000>
force < force-t | force-f | auto >
pri <0 - 15>
[no] span < port-list >
edge
mch
RSTP and MSTP Path Cost
2 000 000
200 000
20 000
Spanning-Tree Operation
5-19