Allied Telesis AT-S80 - Manual (Page 160)

Chapter 13: Rapid Spanning Tree Protocol (RSTP)
160 Section II: Menus Interface
Configuring the RSTP Bridge Settings
To configure the RSTP bridge settings, perform the following procedure:
1. From the Main Menu, type B to select Basic Switch Configuration.
The Basic Switch Configuration Menu is shown in Figure 4 on page 32.
2. From the Basic Switch Configuration Menu, type S to select Rapid
Spanning Tree Configuration.
The Rapid Spanning Tree Configuration Menu is shown in Figure 38
on page 157.
3. Type P to select Set Bridge Priority.
The following prompt is displayed:
Enter bridge priority>
The value is in the range from 0x0000 to 0xF000 and in
increments of 0x1000.
Indicates the priority number for the bridge, in hexadecimal format.
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, that is, the lowest of all the
bridges, then the bridge with the numerically lowest MAC address
becomes the root bridge. When a root bridge goes offline, the bridge
with the lowest priority number automatically takes over as the root
bridge. This parameter can be from 0X0000 to 0XF000, with 0XF000
being the highest priority.
The bridge priority is shown as the first field in the “Designated Root”
and “Bridge ID” parameters.
4. Enter a number for the bridge priority.
5. Type H to select Set Bridge Hello Time.
The following prompt is displayed:
Enter bridge hello time>
This is the time interval between generating and sending configuration
messages by the bridge. This parameter can be from 1 to 10 seconds.
The default is 2 seconds.
6. Enter a number for the bridge hello time.
7. Type M to select Set Bridge Maximum Age.