Configuring Mst Instance Per-Port Parameters - HP procurve 8100fl series Management And Configuration Manual

Configuring MST Instance Per-Port Parameters

The commands in this section must be entered on a port-by-port basis within
the interface configuration context. You may also need to specify the MST
instance to which the command applies. For example, to set the port's path-
cost on port 2 of slot 5, you would first enter the following.
ProCurve(config)# int gig5/2
Enters interface-based configuration context for port 2 in slot 5.
ProCurve(config-interface-gig5/2)#spanning-tree instance 4
path-cost 40000
Sets the port path-cost for port 5/2 to 40000 for MST instance 4.
Command
spanning-tree instance < 1..16 > path-cost < auto | 1..200000000 >
spanning-tree instance < 1..16 > priority < priority-multiplier >
spanning-tree priority < priority-multiplier >
Syntax: spanning-tree instance < 1..16 > 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:
– 100 Mbps: 200000
– 1 Gbps: 20000
– 10 Gbps: 2000
(Default: Auto)
Spanning-Tree Operation
Configuring MSTP
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