Bay Networks BayStack350T, User Manual, Page: 99 / 140

Using the Console Interface
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The Spanning Tree Port Configuration screen contains the fields listed in
Table 3-12 .
Table 3-12. Spanning Tree Port Configuration screen fields
Field Description
Port The Port heading indicates the switch port numbers, from 1 through 16, that correspond
to the field settings in that row of the screen (for example, the field settings configured in
row 2 apply to switch port 2).
Note that settings configured in the All row (bottom row) affect all 16 switch port settings.
Participation This field allows you to prevent any (or all) of the switch ports from participating in the
Spanning Tree Algorithm.
Default Value: Enabled
Range: Enabled, Disabled
Priority This read-only field is a bridge spanning tree parameter that is used to prioritize the port’s
lowest path cost to the root. When one or more ports have the same path cost, the
Spanning Tree Algorithm selects the path with the highest priority (lowest numerical
value). See also Path Cost.
Default Value: 128
Range: 0 through 255
Path Cost This read-only field is a bridge spanning tree parameter that is used to determine the
lowest path cost to the root.
Default Value: 10 or 100
Path Cost = 1000/LAN speed in Mb/s
Note that the higher the LAN speed, the lower the path cost.
See also Priority.
Range: 1 through 65535
State This read-only field represents the current port state within the spanning tree topology.
Each port can transition to various states as determined by the Participation field
settings. For example, when the Participation field is set to Disabled, the port does not
participate in the spanning tree and the port transitions to the Forwarding state (The
default port state). When the Participation field is enabled on a port, the port transitions
from the Disabled state through the Blocking state and Listening and Learning states
before entering the Forwarding state.
Default Value: Topology Dependent.
Range: Disabled, Blocking, Listening, Learning, Forwarding.
BOOK.MKR Page 37 Tuesday, March 4, 1997 7:24 PM