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The Cisco Express Forwarding architecture places only the routing prefixes in its Cisco Express Forwarding tables-the only information it requires to make the Layer 3 forwarding decisions-relying on the routing protocols to do route selection . The gist of the deal is that it 's better to get a little bit back than it is to get nothing . The proven , scalable Cisco Catalyst 4500 Series provides an ideal platform on which to build today ’ s networks and support convergence well into the future . Table 4 lists the management and standards support , and Table 5 provides the safety and compliance information . The equipment falls into three main categories : equipment that comprises the IP network , including the WAN ; SAN networking equipment , hosts , and storage array ; and applications used in the test environment .