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DES-3326 Layer 3 Fast Ethernet Switch User’s Guide
In this example, the VLAN definitions are extended to switches A and B. This gives only a single blocked
port per VLAN and allows the removal of all redundant links by removing switch A or B from the
network.
Impact of Layer 3 Switching.
The IP routing operational mode of the DES-3326 Layer 3 switch can accomplish the following:
• Building a forwarding table, and exchanging information with its peers using routing protocols.
• Receiving packets and forwarding them to the correct interface based upon their destination
address
With layer 3 switching, there is no performance penalty to introducing a routing hop and creating an
additional segment of the network.
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