HP V1905 Series, Руководство по началу работы

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Item Description
Port Fast
Indicates if Fast Link is enabled on the port. If Fast Link mode is enabled for a port, the
port is automatically placed in the Forwarding state when the port link is up. Fast Link
optimizes the STP protocol convergence. STP convergence takes 30 seconds and is
not dependent on the number of switches in the network.
Root Guard
Indicates if the interface is acting as the root port of the switch. The possible field
values are:

Enabled: Indicates Root Guard is enabled on the port.

Disabled: Indicates Root Guard is disabled on the port.
Port State
Displays the current STP state of a port. If enabled, the port state determines what
action is taken on traffic. Possible port states are:

Disable: Indicates that STP is currently disabled on the port. The port forwards
traffic while learning MAC addresses.

Blocking: Indicates that the port is currently blocked and cannot forward traffic or
learn MAC addresses. Blocking is displayed when Classic STP is enabled.

Listening: Indicates that the port is in listening mode. The port cannot forward
traffic nor can it learn MAC addresses.

Learning: Indicates that the port is in learning mode. The port cannot forward
traffic, however it can learn new MAC addresses.

Forwarding: Indicates that the port is in forwarding mode. The port can forward
traffic and learn new MAC addresses.

Discarding: Indicates that the port is in discarding mode. The port is listening to
BPDUs, and discards any other frames it receives.
Port Role
Displays the port role assigned by the STP algorithm to provide to STP paths. The
possible field values are:

Disable: Indicates that the port or LAG is currently disabled on the port

Designated: The port or LAG through which the designated switch is attached to
the LAN.

Alternate: Provides an alternate path to the root switch from the root interface.

Backup: With the designated port being blocked, the backup port becomes the
new designated port fast and begins to forward data seamlessly.

Root: Provides the lowest cost path to forward packets to the root switch.
Speed Indicates the speed at which the port is operating.
Path Cost
Indicates the port contribution to the root path cost. The path cost is adjusted to a
higher or lower value, and is used to forward traffic when a path is re-routed.
Priority
Indicates the priority value of the port. The priority value influences the port choice
when a bridge has two ports connected in a loop. The priority range is between
0-240.
Link Type
Indicates whether a Point-to-Point link is established, or if the switch is permitted to
establish a Point-to-Point link. The possible field values are:

Auto: Enables the switch to establish automatically point-to-point link.

Point to Point: Indicates if a point-to-point link is currently established on the port.
Ports set to Full Duplex modes are considered Point-to-Point port links.

Shared: Enables the switch to establish a shared link.
Designated Bridge ID Indicates the bridge priority and the MAC Address of the designated bridge.
Designated Port ID Indicates the selected port priority and interface.