Chapter 5
Configuring the Switch
36
48-Port 10/100 + 4-Port Gigabit Switch with WebView and Power over Ethernet
Spanning Tree > STP Status
Spanning Tree > STP Status
You can display a summary of the current bridge STA
information that applies to the entire Switch using the
information screen. This screen displays the following
information.
Spanning Tree State Shows if the Switch is enabled to
participate in an STA-compliant network.
Spanning Tree Mode Shows the type of protocol that
the Switch is using.
Bridge ID A unique identifier for this bridge, consisting of
the bridge priority and MAC address (where the address is
taken from the Switch system).
Designated Root The priority and MAC address of the
device in the Spanning Tree that the Switch has accepted
as the root device.
Root Port The number of the port on the Switch that is
closest to the root. The Switch communicates with the
root device through this port. If there is no root port, then
the Switch has been accepted as the root device of the
Spanning Tree network.
Root Path Cost The path cost from the root port on the
Switch to the root device.
Root Maximum Age The maximum time (in seconds) a
device can wait without receiving a configuration message
before attempting to reconfigure. All device ports (except
for designated ports) should receive configuration
messages at regular intervals. Any port that ages out STA
information (provided in the last configuration message)
becomes the designated port for the attached LAN. If it
is a root port, a new root port is selected from among
the device ports attached to the network. (References to
“ports” in this section mean “interfaces,” which includes
both ports and LAGs.)
Root Hello Time Interval (in seconds) at which the Switch
transmits a configuration message.
Root Forward Delay The maximum time (in seconds) the
root device will wait before changing states (i.e., discarding
to learning to forwarding). This delay is required because
every device must receive information about topology
changes before it starts to forward frames. In addition,
each port needs time to listen for conflicting information
that would make it return to a discarding state; otherwise,
temporary data loops might result.
Topology Changes Counts The number of times the
Spanning Tree has been reconfigured.
Last Topology Change Time since the Spanning Tree
was last reconfigured.
Spanning Tree > Global STP
Spanning Tree > Global STP
Configure the global settings for STP using this screen.
Global settings apply to the entire Switch.
Spanning Tree State Enables/disables STP on the Switch.
Use the checkbox to enable or disable STP on the Switch.
(Default: Enabled).
