Allied Telesis AT-S87 - Manual (Page 106)

Chapter 10: STP and RSTP
106
5. In the Bridge Priority field, enter a number for the priority number for
the bridge. This number is used to determine the root bridge for RSTP.
The bridge with the lowest priority number is selected as the root
bridge. If two or more bridges have the same priority value, the bridge
with the numerically lowest MAC address becomes the root bridge.
When a root bridge goes offline, the bridge with the next priority
number automatically takes over as the root bridge. This parameter
can be from 0 (zero) to 61,440 in increments of 4096, with 0 being the
highest priority. For a list of the valid values, refer to Table 4, ”Bridge
Priority Value Increments” on page 95.
To configure the ports, refer to “Configuring the Spanning Tree Port
Settings,” next.
6. Do one of the following:
ˆ Click OK to save the changes.
ˆ Click Reload to restore the previous settings.
7. To permanently save these settings in the configuration file, from the
main menu, select Save Configuration.
The Save Configuration page is shown in Figure 3 on page 21.
8. Click Save.