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 TitleDate AddedCompany
whitepaper IOS Tips and Tricks2009-10-12 Global Knowledge
  There are a number of things you can do with Cisco's IOS to make your life easier. This white paper presents some ways that IOS commands can help streamline your work, and give you more insight into your system. This white paper presents some useful commands, followed (in parentheses) by their most concise shortcuts at the time of this writing.

Tags: Network Technologies, Intrusion - Tampering, Intrusion - Tampering, Security Administration		   
whitepaper Dell-Customized Mobility Solutions2009-10-08 Dell
  The marketplace is overflowing with a multitude of mobility options for businesses of all types and sizes. From notebooks, netbooks, and handheld computers to WiFi, smartphones, and mobile broadband, there really is no end to the number of devices now available for a wide variety of business applications. In this TechRepublic Resource Guide on customized mobility solutions, find out how an increasingly mobile workforce is driving the need for more and more mobility solutions that are likely to impact the market for notebooks, smartphones, and mobile access technologies. Plus, learn how the rising demands of customized mobility portfolios are creating the need for a new type of partnership between businesses and their technology partners. And, discover why companies must look beyond just price to extract the greatest possible value from their notebook computers and ensure a solid return on their investment. Download this TechRepublic Resource Guide right now to learn about all of this and much more.

Tags: Mobile and Wireless, Network Management, Network Technologies, Mobile and Wireless		   
whitepaper Decoupling Congestion Control From TCP for Multi-Hop Wireless Networks: Semi-TCP2009-09-25 Association for Computing Machinery
  TCP performs poorly in multihop wireless networks and even worse if end-to-end connectivity is often broken such as in challenged networks. Lots of research has been carried out but this problem has not been solved completely. Recently, hop-by-hop congestion control originally proposed for wired networks has been applied for multihop wireless networks to significantly improve performances. The author thinks that moving congestion control down to lower layers is essential to overcome TCP problems in multihop wireless networks and in this case, it is necessary to further decouple congestion control from TCP. Such TCP only retains reliability control and is called semi-TCP henceforth.

Tags: Mobile and Wireless, Software Development Tools		   
whitepaper CAFE: A Configurable PAcket Forwarding Engine for Data Center Networks2009-08-21 Association for Computing Machinery
  Recently, Data Center Networking (DCN) has attracted many research attentions and innovative DCN designs have been proposed. All these designs need specialized packet forwarding engines due to their special routing algorithms, which are either based on commonly used packet headers or self-defined ones. Although programmable forwarding devices are available, it is difficult to use them to prototype these DCN designs, especially when self-defined headers are introduced. This paper presents a hardware based Configurable pAcket Forwarding Engine (CAFE) to facilitate the prototyping process. Through simple APIs, CAFE can be easily configured to forward self-defined packets, modify, insert, and delete arbitrary packet header fields without re-designing the hardware.

Tags: Data Infrastructure		   
whitepaper BCube: A High Performance, Server-Centric Network Architecture for Modular Data Centers2009-08-21 Association for Computing Machinery
  This paper presents BCube, a new network architecture specifically designed for shipping-container based, modular data centers. At the core of the BCube architecture is its server-centric network structure, where servers with multiple network ports connect to multiple layers of COTS (commodity o-the-shelf) mini-switches. Servers act as not only end hosts, but also relay nodes for each other. BCube sup-ports various bandwidth-intensive applications by speeding-up one-to-one, one-to-several, and one-to-all traffic patterns, and by providing high network capacity for all-to-all traffic. BCube exhibits graceful performance degradation as the server and/or switch failure rate increases. This property is of special importance for shipping-container data centers, since once the container is sealed and operational, it becomes very difficult to repair or replace its components.

Tags: Network Management, Data Infrastructure		   
whitepaper De-Anonymizing the Internet Using Unreliable IDs2009-08-21 Association for Computing Machinery
  Today's Internet is open and anonymous. While it permits free traffic from any host, attackers that generate malicious traffic cannot typically be held accountable. This paper, presents a system called HostTracker that tracks dynamic bindings between hosts and IP addresses by leveraging application-level data with unreliable IDs. Using a month-long user login trace from a large email provider, the paper shows that HostTracker can attribute most of the activities reliably to the responsible hosts, despite the existence of dynamic IP addresses, proxies, and NATs. With this information, one is able to analyze the host population, to conduct forensic analysis, and also to blacklist malicious hosts dynamically.

Tags: Security Administration		   
whitepaper Enhancing Wireless TCP: A Serialized-Timer Approach2009-08-13 University of Hong Kong
  In wireless networks, TCP performs unsatisfactorily since packet reordering and random losses may be falsely interpreted as congestive losses. This causes TCP to trigger fast retransmission and fast recovery spuriously, leading to under-utilization of available network resources. This paper proposes a novel TCP variant, known as TCP for non-congestive loss (TCP-NCL), to adapt TCP to wireless networks by using more reliable signals of packet loss and network overload for activating packet retransmission and congestion response, separately. TCP-NCL can thus serve as a unified solution for effective congestion control, sequencing control, and loss recovery.

Tags: Mobile and Wireless, Software Development Tools		   
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 How to Generate Immediate Savings with Outsourced Mobility Spend Management2009-08-04 ProfitLine
  Looking for more ways to cut IT costs? Today companies are rethinking the way they do business. As workers react to the pressure to be more productive, usage of smart devices and air cards is soaring. This means that wireless expenses are reaching a critical stage. But you can't manage what you can't see. Companies that do not actively manage the full spectrum of their mobile communications miss significant savings opportunities.

Without centralized visibility and policy management, companies don't realize how much money is being overspent. This paper outlines requirements for effective mobility management and explains why outsourcing can provide immediate and long term value by laying a framework to support your communications strategies.

Tags: Network Technologies, Intrusion - Tampering, Security Administration, Mobile and Wireless		   
whitepaper The dirty dozen: preventing common application-level hack attacks2009-08-03 IBM
  As organizations have grown increasingly dependent on online software, the risk of malicious attacks has also become far more serious. Such attacks can bring a business to a standstill, cost a company millions of dollars in lost transactions and potentially tarnish its brand image.

Tags: Intrusion - Tampering, Security Administration, Intrusion - Tampering, Intrusion - Tampering