ZyXEL Communications XS-3900-48F User Manual page 121

Table 38 Advanced Application > Spanning Tree Protocol > MSTP (continued)
LABEL
Enabled VLAN(s)
Port
*
Active
Priority
Path Cost
Add
Cancel
Instance
VLAN
Active Port
Delete
Cancel
XS3900-48F User's Guide
DESCRIPTION
This field displays which VLAN(s) are mapped to this MST instance.
This field displays the port number.
Settings in this row apply to all ports.
Use this row only if you want to make some settings the same for all ports. Use this row
first to set the common settings and then make adjustments on a port-by-port basis.
Note: Changes in this row are copied to all the ports as soon as you make them.
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
the 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
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.
Chapter 11 Spanning Tree Protocol
Table 31 on page 107 for more information.
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