About Bridging
Figure 2-3 Redundant bridging
Internal bridge software will automatically designate one bridge as the “active” bridge and the other bridge as the “standby” or blocking bridge, preventing multiple transmissions of the same packet by both bridges.
This software implements what is called a spanning tree algo- rithm and is commonly used in the configuration shown in Figure
The two bridges talk to each other periodically, checking each other’s status. If the active bridge goes down or the link between it and either segment is lost, the standby bridge automatically (after a short time period) reconfigures itself as the active bridge, and
For a complete description of all spanning tree configuration parameters, see Chapter 3, “AsantéBridge 1012
Local Management.”
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