110
GS716T and GS724T Gigabit Smart Switches
6.
Click
Cancel
to cancel the configuration on the screen and reset the data on the screen to
the latest value of the switch
7.
If you make any configuration changes, click
Apply
to send the updated configuration to the
switch. Configuration changes take place immediately.
The following table describes the read-only MST port configuration information displayed on
the Spanning Tree CST Configuration page
Field
Description
Auto-calculated Port Path
Cost
Displays whether the path cost is automatically calculated (Enabled) or not
(Disabled). Path cost is calculated based on the link speed of the port if the
configured value for Port Path Cost is zero.
Port ID
The port identifier for the specified port within the selected MST instance. It
is made up from the port priority and the interface number of the port.
Port Up Time Since Counters
Last Cleared
Time since the counters were last cleared, displayed in Days, Hours,
Minutes, and Seconds.
Port Mode
Spanning Tree Protocol Administrative Mode associated with the port or port
channel. Possible values are
Enable
or
Disable
.
Port Forwarding State
Indicates the current STP state of a port. If enabled, the port state
determines what forwarding action is taken on traffic. Possible port states
are:
•
Disabled
: STP is currently disabled on the port. The port forwards traffic
while learning MAC addresses.
•
Blocking
: The port is currently blocked and cannot be used to forward
traffic or learn MAC addresses.
•
Listening
: The port is currently in the listening mode. The port cannot
forward traffic nor can it learn MAC addresses.
•
Learning
: The port is currently in the learning mode. The port cannot
forward traffic, however, it can learn new MAC addresses.
•
Forwarding
: The port is currently in the forwarding mode. The port can
forward traffic and learn new MAC addresses
Port Role
Each MST Bridge Port that is enabled is assigned a Port Role for each
spanning tree. The port role will be one of the following values:
Root Port
,
Designated Port
,
Alternate Port
,
Backup Port
,
Master Port
, or
Disabled
Port
.
Designated Root
Root Bridge for the selected MST instance. It is made up using the bridge
priority and the base MAC address of the bridge.
Designated Cost
Displays cost of the port participating in the STP topology. Ports with a lower
cost are less likely to be blocked if STP detects loops.
Designated Bridge
Bridge Identifier of the bridge with the Designated Port. It is made up using
the bridge priority and the base MAC address of the bridge.
Designated Port
Port Identifier on the Designated Bridge that offers the lowest cost to the
LAN. It is made up from the port priority and the interface number of the port.
Click
Refresh
to update the screen with the latest MST information.
