The Cisco 4000 series routers are highly cost-effective, modular platforms that reduce network costs and complexity by aggregating multiple LANs into a single multiprotocol network. Cisco 4000 series routers offer increased security through packet filtering between LANs and provide the bandwidth reservation features and performance required for advanced applications such as LAN-to-Asynchronous Transfer Mode (ATM) access, IBM data-link switching (DLSw), Advanced Peer-to-Peer Networking (APPN), and videoconferencing.
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