HP V1905 Series, Руководство по началу работы

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Table 69 STP Global Setup Page item description
Item Description
Global
Settings
Spanning Tree
State
Defines whether STP is enabled on the switch. The possible field values
are:

Disable: Disables STP and RSTP on the switch.

Classic: Enables STP on the switch.

RSTP: Enables RSTP on the switch.
BPDU Handling
Determines how BPDU packets are managed when STP is disabled on the
port or switch. BPDUs are used to transmit spanning tree information. The
possible field values are:

Filtering: Filters BPDU packets when spanning tree is disabled on an
interface.

Flooding: Floods BPDU packets when spanning tree is disabled on an
interface. This is the default value.
Path Cost Default
Values
Specifies the method used to assign default path cost to STP ports. The
possible field values are:

Short: Specifies 1 through 65535 ranges for port path cost. This is the
default value.

Long: Specifies 1 through 200000000 ranges for port path cost. The
default path cost assigned to an interface varies according to the
selected method (Hello Time, Max Age, or Forward Delay).
Bridge Settings
Priority
Specifies the bridge priority value. When switches or bridges are running
STP, each is assigned a priority. After exchanging BPDUs, the switch with
the lowest priority value becomes the Root Bridge. The field range is
0-61440. The default value is 32768. The port priority value is provided
in increments of 4096.
Hello Time
Specifies the switch Hello Time. The Hello Time indicates the amount of
time in seconds a Root Bridge waits between configuration messages.
The default is 2 seconds.
Max Age
Specifies the switch Maximum Age Time. The Maximum Age Time is the
amount of time in seconds a bridge waits before sending configuration
messages. The default Maximum Age Time is 20 seconds.
Forward Delay
Specifies the switch Forward Delay Time. The Forward Delay Time is the
amount of time in seconds a bridge remains in a listening and learning
state before forwarding packets. The default is 15 seconds.
Designated
Root
Bridge ID Identifies the Bridge priority and MAC address.
Root Bridge ID Identifies the Root Bridge priority and MAC address.
Root Port
Indicates the port number that offers the lowest cost path from this bridge
to the Root Bridge. This field is significant when the bridge is not the Root
Bridge. The default is zero.
Root Path Cost Indicates the cost of the path from this bridge to the Root Bridge.
Topology
Changes Counts
Indicates the total amount of STP state changes that have occurred.
Last Topology
Change
Indicates the amount of time that has elapsed since the bridge was
initialized or reset, and the last topographic change that occurred. The
time is displayed in a day-hour-minute-second format, such as 2 days 5