Member Login

E-mail:    Password:  




 TitleDate AddedCompany
whitepaper Overcoming IP Telephony Performance Issues in a Converged Network2009-08-07 Global Knowledge
  When implementing Voice over IP (VoIP) onto a data network, you must ensure that the equipment capable of handling the additional load, and, more importantly, that the traffic will be properly classified, marked, and prioritized for optimal performance. Voice traffic is highly intolerant to delay, jitter, and packet loss, so it is critical to prioritize it over normal traffic. In this white paper, we discuss the application of Quality of Service (QoS) to networks with media flows such as voice and video. To take advantage of many modern advances in IP-based telephony, we must take into consideration several design and configuration factors before we can expect it to function properly.

Tags: Network Technologies, Network Management, Network Technologies, Network Technologies		   
whitepaper An Introduction to ISDN2009-06-18 Tandberg
  ISDN is a digital communications network providing transmission rates in multiples of 64kbits per second. Typically described as 2B + D, Basic Rate ISDN (BRI) logically uses 2 64 kbit/s data channels (B channels) and one 16 kbit/s signalling channel (D channel). ISDN has yet to become a single global standard although within Europe EURO-ISDN is used almost exclusively. Individual countries however, have their own flavours of ISDN all of which are based to a varying degree around the ITUs ISDN standard.

Tags: LAN - WAN, Network Technologies, Network Technologies		   
whitepaper Routing in Mobile Wireless Networks for Realtime Multimedia Applications-Reuse of Virtual Circuits2009-06-08 Dhofar University
  Routing places an important role in determining the quality of service in wireless networks. The routing methods adopted in wireless networks have many drawbacks. This paper aims to review the current routing methods used in wireless networks. This paper proposes an innovative solution to overcome the problems in routing. This solution is aimed at improving the Quality of Service. This solution is different from others as it involves the resuage of the part of the virtual circuits. This improvement in quality of service is important especially in propagation of multimedia applications like video, animations etc. So it is the dire need to propose a new solution to improve the quality of service in ATM wireless networks for multimedia applications especially during this era of multimedia based applications.

Tags: Mobile and Wireless		   
whitepaper Cisco EnergyWise2009-06-01 Cisco Systems
  In response to energy costs, environmental concerns, and government directives, there is an increased need for sustainable and "green" business IT operations. Methods to measure power consumption and control energy output are now the focus of businesses worldwide, with all customers looking for a method to reduce energy costs and implement increased efficient operation.

Download the whitepaper to learn more.

Tags: Network Management, Network Technologies, Network Management, Data Infrastructure		   
whitepaper Air Distribution Architecture Options for Mission Critical Facilities2009-04-08 American Power Conversion (APC)
  There are nine basic ways to use air to cool equipment in data centers and network rooms. These methods vary in performance, cost, and ease of implementation. These methods are described along with their various advantages. The proper application of these cooling techniques is essential knowledge for Information Systems personnel as well as Facilities Managers.

Tags: Network Technologies, Network Management, Data Infrastructure, LAN - WAN		   
whitepaper Sustaining Negotiated QoS in Connection Admission Control for ATM Networks Using Fuzzy Logic Techniques2008-05-20 University of Ibadan
  The objective of Connection Admission Control (CAC) is to keep the network load moderate to achieve a performance objective associated with Quality of Service (QoS). Cell Loss Ratio (CLR), a key QoS parameter in ATM networks, is essential for proper network resources dimensioning, congestion control, bandwidth allocation and routing. This paper employed fuzzy logic technique in Statistical Connection Admission Control (S-CAC) - a CAC employing multiplexing of the bandwidth between the peak cell rate and the sustained (average) cell rate. The fuzzy technique consists of an input stage, a processing stage, and an output stage. The paper defined the rules with "Max-min" inference method in which the output membership function is given the truth value generated by the premise.

Tags: Network Technologies		   
whitepaper Statistical Multiplexing Over IP StatmuxIP Solution2008-03-19 Motorola
  Statistical multiplexing is a proven technique used to dynamically assign compression bitrates based upon video complexity and motion requirements of individual channels. The principle of statistical multiplexing is that a group or "Pool" of encoders shares a fixed quantity of bandwidth. The bandwidth is allocated on a frame by frame basis by a centralized controller (multiplexer) so the encoder with the most complex video is allowed to borrow more bandwidth from the pool of encoders with less difficult video.

Tags: Network Management, Software Development Tools		   
whitepaper Aspects of Network Migration From ATM to MPLS2008-01-01 University Politehnica of Bucharest
  Many telecoms operators which provide voice services as a significant part of their business have installed in the last decades ATM network to carry the traffic. Choosing ATM as backbone technologies was an obvious choice at that time: ATM can carries voice and data, mostly Frame Relay, providing a good support for other further development such as video-conferencing or ISDN. Today the growing IP traffic is constraining the telecoms providers to adjust their network to function in this new climate with the maximum efficiency possible. Because of his nature, ATM is not the best way to carry IP traffic, nor the most efficient.

Tags: Network Technologies, LAN - WAN		   
whitepaper Insecurity in ATM-Based Passive Optical Networks2008-01-01 University of California
  This paper considers the security of an ITU standard for ATM-based passive optical networks. First, it shows that the standard's encryption algorithm, called churning, has an effective 8-bit key length and thus is trivial to break with exhaustive keysearch. Second, it shows that the authentication mechanisms have significant weaknesses. The conclusion is that these measures should not be relied upon to provide security.

Tags: Network Technologies		   
whitepaper Technical White Paper for ATM-ETH IWF2007-12-18 Huawei Technologies
  With the development of Ethernet, ATM access network is stepping towards Ethernet. The routers with IWF feature provide a perfect solution for making full use of existent ATM network and devices (ATM DSLAM, ATM Switch, etc.). It helps ATM network intercommunicate with Ethernet smoothly through multiple carrier methods such as CCC, PW and VPLS.

Tags: LAN - WAN, Network Technologies