Allied Telesis AT-S63 - Manual (Page 528)

Chapter 22: Spanning Tree and Rapid Spanning Tree Protocols
528 Section V: Spanning Tree Protocols
2. From the Spanning Tree Configuration menu, type 3 to select
Configure Active Protocol. The STP menu is shown in Figure 171.
Figure 171. STP Menu
The bridge hello time, bridge forwarding, and bridge max age
parameters will have two values if STP is enabled on the switch (for
example, Bridge Forwarding .. 15/15). The first number is the
configured value on the switch for the parameter and the second is the
value the switch obtained from the root bridge and is actually using for
the parameter. The switch displays only the configured values for
these parameters if spanning tree is not activated on the switch.
3. Adjust the following parameters as needed.
1 - Bridge Priority
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 increments,
refer to Table 15, Bridge Priority Value Increments on page 517.
2 - Bridge Hello Time
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.
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STP Menu
1 - Bridge Priority ..... 32768
2 - Bridge Hello Time ... 2/2 (Configured/Actual)
3 - Bridge Forwarding ... 15/15 (Configured/Actual)
4 - Bridge Max Age ...... 20/20 (Configured/Actual)
5 - Bridge Identifier ... 32768/00:21:46:A7:B4:11
6 - Root Bridge ......... 00:21:46:A7:B4:11
7 - Root Priority ....... 32768
8 - Root Path Cost ...... 0
P - STP Port Settings
D - Reset STP to Defaults
R - Return to Previous Menu
Enter your selection?