ZyXEL Communications OLT2406, User Manual

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Chapter 14 Spanning Tree Protocol
OLT2406 User’s Guide
140
14.6.1 Multiple Spanning Tree Protocol Port Configuration
Click Advanced Application > Spanning Tree Protocol > MSTP > Port in the navigation panel to display
the status screen as shown next. See Multiple STP on page 133 for more information on MSTP.
* 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.
Active Select this check box to add this port to the MST instance.
Priority 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 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 36 on page 132 for more information.
Add Click Add to save this MST instance to the OLT’s run-time memory. The OLT 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.
Cancel Click Cancel to begin configuring this screen afresh.
Instance This field displays the ID of an MST instance.
VLAN This field displays the VID (or VID ranges) to which the MST instance is mapped.
Active Port This field display the ports configured to participate in the MST instance.
Select an entry’s check box to select a specific entry.
Delete Check the rule(s) that you want to remove and then click the Delete button.
Cancel Click Cancel to clear the selected checkbox(es).
Table 41 Advanced Application > Spanning Tree Protocol > MSTP (continued)
LABEL DESCRIPTION