HP 5400ZL - Manual (Page 163)

Multiple Instance Spanning-Tree Operation
Configuring MSTP
Configuring MST Instance Per-Port Parameters
Command Page
spanning-tree instance < 1..16 > < port-list > path-cost
< auto | 1..200000000 >
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spanning-tree instance < 1..16 > < port-list > priority < priority-multiplier > 4-42
spanning-tree < port-list > priority < priority-multiplier > 4-43
Syntax: spanning-tree instance < 1..16 > < port-list > path-cost < auto | 1..200000000 >
This command assigns an individual port cost for the specified
MST instance. (For a given port, the path cost setting can be
different for different MST instances to which the port may
belong.) The switch uses the path cost to determine which ports
are the forwarding ports in the instance; that is which links to
use for the active topology of the instance and which ports to
block. The settings are either
auto or in a range from 1 to
200,000,000. With the auto setting, the switch calculates the
path cost from the link speed:
10 Mbps — 2000000
100 Mbps — 200000
1 Gbps — 20000
(Default: Auto)
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