D-Link DGS-3200-16 User Manual - Page 99

xStack® DGS-3200 Series Layer 2 Gigabit Ethernet Managed Switch MSTP Port Information This window displays the current MSTI configuration information and can be used to update the port configuration for an MSTI ID. If a loop occurs, the MSTP function will use the port priority to select an interface to put into the forwarding state. Set a higher priority value for interfaces to be selected for forwarding first. In instances where the priority value is identical, the MSTP function will implement the lowest MAC address into the forwarding state and other interfaces will be blocked. Remember that lower priority values mean higher priorities for forwarding packets. To view the following window, click L2 Features > Spanning Tree > MSTP Port Information: Figure 3 - 38. MSTP Port Information window To view the MSTI settings for a particular port, use the drop-down menu to select the Port number. To modify the settings for a particular MSTI instance, enter a value in the Instance ID field, an Internal Path Cost, and use the drop-down menu to select a Priority. The user may configure the following parameters: Parameter Instance ID Internal Path Cost Priority Description The MSTI ID of the instance to be configured. Enter a value between 0 and 15. An entry of 0 in this field denotes the CIST (default MSTI). This parameter is set to represent the relative cost of forwarding packets to specified ports when an interface is selected within an STP instance. Selecting this parameter with a value in the range of 1 to 200000000 will set the quickest route when a loop occurs. A lower Internal cost represents a quicker transmission. Selecting 0 (zero) for this parameter will set the quickest route automatically and optimally for an interface. Enter a value between 0 and 240 to set the priority for the port interface. A higher priority will designate the interface to forward packets first. A lower number denotes a higher priority. Click Apply to implement the changes made. 86