User manual

xStack DES-3800 Series Layer 3 Stackable Fast Ethernet Managed Switch

lower priority values mean higher priorities for forwarding packets. To view the following window,

click Layer 2 Features > Spanning Tree > MSTP Port Information:

Figure 7- 25. MSTP Port Information window

To view the MSTI settings for a particular port, select the Port number, located in the top left hand

corner of the screen and click Apply. To modify the settings for a particular MSTI Instance, click on

its hyperlinked MSTI ID, which will reveal the following window.

Figure 7- 26. MSTI Settings window

Parameter Description

Instance ID

Displays the MSTI ID of the instance being configured. An entry of 0 in this field denotes

the CIST (default MSTI).

Internal cost

(0=Auto)

This parameter is set to represent the relative cost of forwarding packets to specified

ports when an interface is selected within a STP instance. The default setting is 0

(auto). There are two options:

• 0 (auto) - Selecting this parameter for the internalCost will set quickest route

automatically and optimally for an interface. The default value is derived from

the media speed of the interface.

• value 1-2000000 - Selecting this parameter with a value in the range of 1-

2000000 will set the quickest route when a loop occurs. A lower Internal cost

represents a quicker transmission.