Bay Networks BayStack350T, Руководство пользователя, Страница: 101 / 140

Using the Console Interface
893-00992-A
3-39
The Spanning Tree Switch Settings screen lists the spanning tree parameters listed
in
Table 3-13 .
Table 3-13. Spanning Tree Switch Settings screen parameters
Parameter Description
Bridge Priority: Indicates the management-assigned priority value of the bridge ID in hexadecimal
notation, which is the most significant byte of the bridge ID. This parameter is used by the
spanning tree process to determine the root bridge or designated bridge. For example,
the bridge with the lowest bridge ID becomes the root bridge (or designated bridge), with
Bridge Priority values compared first and hardware addresses second.
Default Value: 8000
Range: 0 through 65535
Designated
Root: Indicates the bridge ID of the root bridge, as determined by the spanning tree process.
Default Value: 8000 (bridge_id)
Range: 0 through 65535
Root Port: Indicates the switch port number that offers the lowest path cost to the root bridge.
Default Value: 0
Range: 0 through 16
Root Path Cost: Indicates the path cost from this switch to the root bridge.
Default Value: 0
Range: Not applicable
Hello Time: Indicates the Actual Hello interval (the amount of time between transmissions of
Configuration Bridge PDUs) that is currently in use by the root bridge. Note that all
bridges participating in the spanning tree use the root bridge’s Hello Interval parameter
value (see also “Bridge Hello Time” parameter).
Default Value: 2
Range: 1 to 10 seconds
Maximum Age
Time: Indicates the maximum age time parameter value, currently in use by the root bridge, that
specifies the maximum length of time that a Hello message can attain before it is
discarded.
Note that, the root bridge’s Maximum Age Time parameter value becomes the (actual)
Maximum Age Time parameter value for all bridges participating in the spanning tree
network (see also “Bridge Maximum Age Time” parameter).
Default Value: 20
Range: 6 to 40 seconds
BOOK.MKR Page 39 Tuesday, March 4, 1997 7:24 PM