Asus GigaX2024SX - Manual (Page 118)

When using STP or RSTP, it may be difficult to maintain a stable path between all
VLAN members. Frequent changes in the tree structure can easily isolate some of
the group members.
Displaying Global Settings
You can display a summary of the current bridge STA information that applies to
the entire switch using the STA Information screen.
Field Attributes
• Spanning Tree State – Shows if the switch is enabled to participate in an
STA-compliant network.
• Bridge ID – A unique identifier for this bridge, consisting of the bridge priority
and MAC a
.
Max Age – The maximum time (in seconds) a device can wait without receiving
xcept
selected from among the device ports attached to the network.
(References to “ports” in this section mean “interfaces,” which includes both ports
and trunks.)
ot device transmits a
• Forward Delay – The maximum time (in seconds) the root device will wait
to forward frames. In addition, each port needs time to listen for
onflicting information that would make it return to a discarding state; otherwise,
ight result.
MAC address of the device in the Spanning
losest to the root. This
Tree
t – The path cost from the root port on this switch to the root
ddress (where the address is taken from the switch system)
•
a configuration message before attempting to reconfigure. All device ports (e
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
• Hello Time – Interval (in seconds) at which the ro
configuration message.
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
c
temporary data loops m
• Designated Root – The priority and
Tree that this switch has accepted as the root device.
- Root Port – The number of the port on this switch that is c
switch communicates with the root device through this port. If there is no root
port, then this switch has been accepted as the root device of the Spanning
network.
- Root Path Cos
device.
• Configuration Changes – The number of times the Spanning Tree has been
reconfigured.
• Last Topology Change – Time since the Spanning Tree was last reconfigured.
These additional parameters are only displayed for the CLI:
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