Industrial Managed
Ethernet Switch – EH9711
User Manual
Page
95
of
223
2.7.5
MSTI Ports
The MSTI Ports webpage as shown in Figure 2.77 allows the user to inspect and/or change the current STP MSTI port
configurations. An MSTI port is a virtual port, which is instantiated separately for each active CIST (physical) port for each
MSTI instance configured on and applicable to the port. The MSTI instance must be selected before displaying actual MSTI
port configuration options. After selecting a desired MSTI and clicking on the
Get
button, the webpage is updated as shown
in Figure 2.78. The updated page contains MSTI port settings for physical and aggregated ports. Table 2.64 summarizes the
descriptions of MSTI Port Configuration.
Figure 2.77 Webpage to Configure MSTI of Spanning Tree
Figure 2.78 Example of MST1 MSTI Port Configuration
Table 2.64 Descriptions of MSTI Configuration of Spanning Tree
Label
Description
Factory
Default
Port
The switch port number of the corresponding STP CIST (and MSTI)
port.
MST1
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
Auto
