bridge. The Bridge looks at the source address of each packet generated on the subnetwork and creates a database containing these addresses.
Note: If a node does not generate any packets, its location cannot be dynamically learned by the Bridge Module.
When a packet is received by the Bridge Module, its destination address is compared with the addresses in the source subnetwork database. Table
Table 1-1. Packet Distribution by Bridge Module
The Destination Address is.. | The Packet is... |
|
|
Found in the source | Considered to be local to that |
subnetwork database | subnetwork (its source and destination |
| are on the same subnetwork). The |
| Bridge Module does not forward the |
| packet. |
|
|
Not found in the source | Considered to be on a different |
subnetwork database | subnetwork and forwarded onto the |
| other subnetwork (or the destination |
| node has not generated any traffic). |
|
|
High-Performance Design
While address filtering can reduce traffic loads on your network, it is important to overall network integrity for a learning bridge to run as fast as the network. The Bridge Module ensures high performance in the following ways:
1.It uses
1 - 6 ONline Ethernet Bridge Module Installation and Operation Guide