Dashboard
41
Table 18
Switch Spanning Tree Group Information controls
Control Description
Path Cost
Displays the cumulative path cost to the Current Root.
Root Port
Displays the switch port that is connected to the Current Root.
Max Age
Specifies, in seconds, the maximum time the bridge waits without receiving a
configuration bridge protocol data unit before it reconfigures the STP network. If
the bridge is not the root bridge, it uses the
MaxAge
value of the root bridge.
Hello Time
Specifies, in seconds, how often the root bridge transmits a configuration bridge
protocol data unit (BPDU). Any bridge that is not the root bridge uses the root
bridge hello value.
Forward Delay
Specifies, in seconds, the amount of time that a bridge port has to wait before it
changes from learning state to forwarding state. If the bridge is not the root
bridge, it uses the
Forward Delay
value of the root bridge.
Hold Time
Displays the minimum number of seconds that must elapse between transmissions
of consecutive configuration BPDUs on a port.
Topology Change Counts
Displays the number of times the spanning tree topology has changed.
Aging Time
Specifies, in seconds, the amount of time the bridge waits without receiving a
packet from a station before removing the station from the Forwarding Database.
Bridge Priority
Controls which bridge on the network will become the STP root bridge.
Bridge Hello Time
Specifies, in seconds, how often the root bridge transmits a configuration bridge
protocol data unit (BPDU). Any bridge that is not the root bridge uses the root
bridge hello value.
Bridge Max Age
Specifies, in seconds, the maximum time the bridge waits without receiving a
configuration bridge protocol data unit before it reconfigures the STP network.
Bridge Forward Delay
Specifies, in seconds, the amount of time that a bridge port has to wait before it
changes from learning state to forwarding state.
Bridge Aging Time
Specifies, in seconds, the amount of time the bridge waits without receiving a
packet from a station before removing the station from the Forwarding Database.
Switch Spanning Tree Port Information
The following table describes the STP port parameters:
Table 19
Switch Spanning Tree Port Information controls
Control Description
Port
Displays the port number for each port’s STP information.
Spanning Tree State
Shows if Spanning Tree is turned on
or off
for the port.
Port State
Shows the current state of the port. The state field can be
blocking
,
listening
,
learning
,
forwarding
, or
disabled
.
The State field in RSTP or MSTP mode can be one of the following:
Discarding
(DISC), Learning (LRN)
,
Forwarding (FWD), or Disabled (DSB)
.
