Multiple Spanning Tree Port Configuration - ZyXEL Communications GS1920-24 User Manual

Advanced Application > Spanning Tree Protocol > MSTP (continued)
Table 49
LABEL
Active
Priority
Path Cost
Add
Cancel
Instance
VLAN
Active Port
Delete
Cancel
13.9 Multiple Spanning Tree Port
Click Advanced Application > Spanning Tree Protocol > MSTP > Port in the navigation panel
to display the status screen as shown next. See Section on page 114 for more information on
MSTP.
Advanced Application > Spanning Tree Protocol > MSTP > Port
Figure 95
Chapter 13 Spanning Tree Protocol
DESCRIPTION
Select this check box to add this port to the MST instance.
Configure the priority for each port here.
Priority decides which port should be disabled when more than one port forms a loop in a
switch. Ports with a higher priority numeric value are disabled first. The allowed range is
between 0 and 255 and the default value is 128.
Path cost is the cost of transmitting a frame on to a LAN through that port. It is
recommended to assign this value according to the speed of the bridge. The slower the
media, the higher the cost-see Table 42 on page 113 for more
Click Add to save this MST instance to the Switch's run-time memory. The Switch loses
this change if it is turned off or loses power, so use the Save link on the top navigation
panel to save your changes to the non-volatile memory when you are done configuring.
Click Cancel to begin configuring this screen afresh.
This field displays the ID of an MST instance.
This field displays the VID (or VID ranges) to which the MST instance is mapped.
This field display the ports configured to participate in the MST instance.
Check the rule(s) that you want to remove in the Delete column and then click the
Delete button.
Click Cancel to begin configuring this screen afresh.
GS1920 Series User's Guide
125
information.
Configuration