Configuration using Web Based Management and Command Line Interface
4.5 The Switch menu
SCALANCE X-300 / X-400
Configuration Manual, 10/2014, C79000-G8976-C187-22
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4.5.14.2
CIST Port Parameters
Port-specific parameters
The "CIST Port Parameters" screen appears if you click the "CIST Ports" submenu.
With MSTP, CIST (Common and Internal Spanning Tree) is the instance used internally by
the switch that, in principle, corresponds to an internal Rapid Spanning Tree.
This screen displays the current port parameters that were either set by the user or set as a
result of the automatic functions of the IE switch.
Figure 4-88 CIST Port Parameters
When the page is called, the table displays the current status of the configuration of the port
parameters.
The table has the following columns:
●
Port
The "Port" column shows the ports to which the information relates.
●
STP Status
The "STP Status" column shows whether spanning tree is enabled or disabled for the
port.
●
Priority
The "Priority" column shows the value of the priority.
If the path calculated by spanning tree is possible over several ports of a switch, the port
with the highest priority (in other words the lowest value for the priority) is selected.
A value between 0 and 255 can be entered for the priority. The default value is 128.
If the priorities are the same, the path with the lowest path costs is selected.
●
Admin Path Cost
Shows the value of the path costs to be used.
