The Cisco4000 series routers run CiscoIOS software, Cisco's industry-leading networking software that provides a variety of feature sets. You can choose a feature set that supports your specific protocol environment. CiscoIOS software assures robust, reliable internetworks by supporting both LAN and WAN protocols, optimizing WAN services, and controlling internetwork access. In addition, CiscoIOS software allows centralized, integrated, and automated installation and management of internetworks.

The Cisco4000 series routers offer Flash EPROM technology as a standard feature. Flash EPROMs enable you to distribute new software releases from a central location. After the software is distributed, the routers can reboot from programs stored in local Flash memory.

All models provide a configurable modular router platform by using network processor modules (NPMs)--individual removable cards used for external network connections. Because the router's modules support many variations of protocols, line speeds, and transmission media, the Cisco4000 series can accommodate all types of network computing environments. As Ciscointroduces new modules, the Cisco4000 series can be upgraded to keep pace with technological advances.

NMP Modules installed:

4-port synchronous serial (sync/async)

1-port ATM DS-3

1-port Fast Ethernet