Kontron AT8404 CLI - Manual (Page 54)

Switching Commands AT8404
AT8404 CLI Reference Manual Page 2 - 18
If you specify 0 (defined as the default CIST ID) as the , this command displays the settings and
parameters for a specific switch port within the common and internal spanning tree. The > is the
desired switch port. In this case, the following are displayed.
Mode • Privileged EXEC
• User EXEC
Term Definition
MST Instance ID The ID of the existing MST instance.
Port Identifier 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 Priority The priority for a particular port within the selected MST instance. The port priority is displayed
in multiples of 16.
Port Forwarding
State
Current spanning tree state of this port.
Port Role Each enabled MST Bridge Port receives a Port Role for each spanning tree. The port role is
one of the following values: Root Port, Designated Port, Alternate Port, Backup Port, Master
Port or Disabled Port
Auto-Calculate
Port Path Cost
Indicates whether auto calculation for port path cost is enabled.
Port Path Cost Configured value of the Internal Port Path Cost parameter.
Auto-Calculate
External Port Path
Cost
Indicates whether auto calculation for external port path cost is enabled.
External Port Path
Cost
Configured value of the external Port Path Cost parameter.
Designated Root The Identifier of the designated root for this port.
Designated Port
Cost
Path Cost offered to the LAN by the Designated Port.
Designated Bridge Bridge Identifier of the bridge with the Designated Port.
Designated Port
Identifier
Port on the Designated Bridge that offers the lowest cost to the LAN.
Term Definition
Port Identifier The port identifier for this port within the CST.
Port Priority The priority of the port within the CST.
Port Forwarding
State
The forwarding state of the port within the CST.
Port Role The role of the specified interface within the CST.
Port Path Cost The configured path cost for the specified interface.
Designated Root Identifier of the designated root for this port within the CST.
Designated Port
Cost
Path Cost offered to the LAN by the Designated Port.
Designated Bridge The bridge containing the designated port.
Designated Port
Identifier
Port on the Designated Bridge that offers the lowest cost to the LAN.
Topology Change
Acknowledgement
Value of flag in next Configuration Bridge Protocol Data Unit (BPDU) transmission indicating
if a topology change is in progress for this port.
Hello Time The hello time in use for this port.
Edge Port The configured value indicating if this port is an edge port.