ATM

NetFlow is a Cisco IOS Software feature, designed to track, document and-optionally-accelerate the flow of IP packets as they traverse a network. NetFlow provides two key benefits to the end user. First, by tracking IP flows, NetFlow produces a detailed record of traffic flows on a network. This record can be used for a variety of purposes, including accounting, billing, network planning, traffic engineering, and user/application monitoring. Second, because NetFlow keeps a cache of active IP flows, it can be used in conjunction with Cisco Express Forwarding as a highly optimized routing cache, accelerating the flow of data as it passes from interface to interface. This paper examines how NetFlow is implemented on logical interfaces. tech news

The deployment of cellular UMTS (Universal Mobile Telecommunications Systems, better known as 3G) is one of the most difficult challenges facing today's service providers network planning experts. They need to juggle with immature technologies, limited financial resources and uncertainties about future market demand. Furthermore, to make 3G services economical while still providing for network upgrades on demand, they are required to reduce capital and operational expenses and keep network costs to a minimum. Cost structures should therefore be flexible, as actual demand for 3G services is still unknown and network design should provide a cost-effective solution for both optimistic and pessimistic scenarios. tech news

Fujitsu's radio network control system has a highly flexible and scalable structure. This has been achieved by dividing various functionalities such as diversity handover, common transport channel related transaction, user data transaction with protocol conversion, and bandwidth control based on ATM and other technologies into several transaction units. These transaction units use high-speed RISC processors and closely interact with each other under the control of the application part to achieve various high performance functionalities. This paper describes the architectures, functionalities, and technologies of Fujitsu's radio network control system. tech news

Why the ATM - the most popular modern convenience second only to the personal computer (PC) remains the banking industry's most poorly leveraged technology asset? Fortunately, a combination of business pressures, regulatory mandates, and open systems support may soon change that. Given this confluence of factors, a wave of next generation ATMs is in the offing, and the ATM is now poised to reach its prime. This white paper explores these and other convergent forces that are altering the course of the ATM's evolution. tech news

Cedar Rapids' teachers, staff, and administration maintain a lofty and laudable mission: to prepare all students to be effective citizens, informed consumers, lifelong learners, responsible family members, and productive workers. The subscribed bandwidth the districts uses is many times slower than the 3Com Fast Ethernet switches deployed in the schools and created a bottleneck at the LAN/WAN boundary. Cedar Rapids determined that the 3Com routers not only had more functionality, but were less expensive and easier to acquire and deploy. 3Com routers eliminate hidden upgrade costs by embedding critical security features, such as firewall, virtual private network (VPN), Quality of Service (QoS), and traffic filtering, without requiring additional software purchases. tech news