Displaying Global Settings; Field Attributes - SMC Networks SMC6724L3 Management Manual

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 address (where the address is taken from the switch
system).
• Max 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 trunks.)
• Hello Time – Interval (in seconds) at which the root device transmits a
configuration message.
• 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.
• Designated Root – The priority and MAC address of the device in the
Spanning Tree that this switch has accepted as the root device.
- Root Port – The number of the port on this switch that is closest to
the root. This 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 Tree network.
S T
PANNING REE
A C
LGORITHM ONFIGURATION
3-89