ProCurve 2610-PWR Technical Information download pdf (Page 173)

Spanning-Tree Operation

802.1s Multiple Spanning Tree Protocol (MSTP)

[ path-cost < auto | 1..200000000 > ]

Assigns an individual port cost that the switch uses to

determine which ports are forwarding ports in a given

spanning tree. In the default configuration ( auto ) the

switch determines a port’s path cost by the port’s type:

– 10 Mbps: 2000000

– 100 Mbps: 200000

– 1 Gbps: 20000

Refer to “Note on Path Cost” on page 5-19 for information

on compatibility with devices running 802.1D STP for the

path cost values (Default: Auto.).

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 < 0..15 >

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. For example, to enter a priority of 64 you would

configure Priority with a multiplier of 4; that is, (4 x 16

= 64). Thus, the displayed default setting of 128 is derived

from the default multiplier of 8. When you use the show

spanning-tree command options, the Priority appears as

the result of the multiplier x 16, and not the multiplier

itself. (Default: 128; configured multiplier = 8).

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ProCurve 2610-PWR Technical Information Page 173