Lantronix
SM24TBT2DPA and SM24TBT2DPB Web User Guide
2-8.4 CIST Ports
This page lets you view and configure the current STP CIST port parameters. When you implement a
Spanning Tree protocol on the switch that is the bridge instance, you must configure the CIST Ports.
To configure the Spanning Tree CIST Ports parameters in the web interface:
1. Click Configuration, Spanning Tree, CIST Ports.
2. Set all parameters of CIST Aggregated Port Configuration.
3. Enable or disable the STP, then set all parameters of the CIST Normal Port configuration.
4. Click the Apply button to save the settings.
5. To cancel the settings, click the Reset button. The page will revert to previously saved values.
Figure 2-8.4: STP CIST Port Configuration page
Parameter descriptions:
Port:
The switch port number of the logical STP port.
STP Enabled:
Controls whether STP is enabled on this switch port.
Path Cost:
Controls the path cost incurred by the port. The Auto setting will set the path cost as
appropriate by the physical link speed, using the 802.1D recommended values. Using the Specific setting,
a user-defined value can be entered. The path cost is used when establishing the active topology of the
network. Lower path cost ports are chosen as forwarding ports in favor of higher path cost ports. Valid
values are in the range 1 to 200000000.
Priority:
Controls the port priority. This can be used to control priority of ports having identical port cost.
(See above).
AdminEdge:
Controls whether the operEdge flag should start as set or cleared. (The initial operEdge
state when a port is initialized).