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Title Date Added Company

Mobile Ad-Hoc Intern-Domain Networking 0000-00-00 University of Cambridge

After nearly three decades of work on mobile ad-hoc networking it is starting to see a convergence of better radios and better understanding of performance needs for MANET routing schemes, delivering working networks. One part of the next stage of evolution of such systems will be to support the federation of different MANETs together, whether concatenated together or interleaved. This paper presents some initial thoughts on how one might start to tackle this interesting problem space, which appears to be rather more complex than the still contentious area of Inter-domain routing in the Internet which the creation of BGP attempted to address.

Tags: Mobile - Wireless Communications

Mitigating the Gateway Bottleneck Via Transparent Cooperative Caching in Wireless Mesh Networks 0000-00-00 Purdue University

Wireless Mesh Networks (WMNs) have been proposed to provide cheap, easily deployable and robust Internet access. The dominant Internet-access traffic from clients causes a congestion bottleneck around the gateway, which can significantly limit the throughput of the WMN clients in accessing the Internet. This paper presents MeshCache, a transparent caching system for WMNs that exploits the locality in client Internet-access traffic to mitigate the bottleneck effect at the gateway, thereby improving client perceived performance. MeshCache leverages the fact that a WMN typically spans a small geographic area and hence mesh routers are easily over-provisioned with CPU, memory, and disk storage, and extends the individual wireless mesh routers in a WMN with built-in content caching functionality. It then performs cooperative caching among the wireless mesh routers.

Tags: Gateways - Hubs, Mobile - Wireless Communications

Enabling Greater Scalability and Improved File Server Performance With the Microsoft Windows Server 2003 Scalable Networking Pack and Alacritech Dynamic TCP Offload 2007-08-09 Alacritech

File serving is a critical workload for Microsoft Windows Server 2003 customers. However, despite their widespread use and the important role that they play, few file servers are actually used to their fullest potential. Companies often end up deploying additional servers to keep pace with user demand, which has the potential to impact operational overhead and IT budgets. A major factor in the efficient use of any server's resources is how network traffic is handled. Traditional methods of processing network traffic have proven to be inefficient in modern data centers. As users demand faster access to information, it is becoming increasingly more difficult to meet these expectations.

Tags: Scalability, Windows NT - 2000 - 2003

Target-Based TCP Stream Reassembly 2007-08-03 Sourcefire

In their landmark 1998 paper, "Insertion, Evasion, and Denial of Service: Eluding Network Intrusion Detection," Thomas Ptacek and Timothy Newsham exposed some weaknesses in Intrusion Detection Systems (IDS). The authors revealed that intrusion detection systems cannot be effective and accurate because they do not necessarily process, or perhaps, even observe network traffic exactly as the destination host that receives the message does. This flaw exists in several layers of evaluation and processing of the packets including the IP, TCP, and application layers. As an example of the problem, consider traffic that has overlapping TCP segments that are sent to a given host.

Secure File Transfer 2007-08-03 Biscom

Biscom Delivery Server (BDS) was built from the ground up to be a superior enterprise-class file delivery solution, one explicitly designed for today's more demanding file delivery needs. Available as a Web application, Outlook add-in, or desktop client, BDS enables secure, authenticated, point-to-point delivery of files, messages, and unstructured data. With its extensive reporting and auditing capabilities, BDS can help organizations create a more secure communications infrastructure. In addition, the Java, SMTP, and Web services APIs available with BDS enable an organization to integrate secure delivery services into their existing applications.

Tags: File and Network Servers, Data Recovery - Security

Modbus/TCP Controller for the Power Supplies in ALS BTS Beam Line 2007-08-02 Institute of Electrical and Electronics Engineers

The development, testing and commissioning of a self-contained power supply controller for four 100 KW power supplies for the upgraded Booster to Storage Ring (BTS) beam line at the Advanced Light Source(ALS) at the Lawrence Berkeley Laboratory, is presented. The power supply controller is a 3U high, rack-mount chassis that contains the regulation control-loop amplifiers, 16-bit DAC with microcontroller and a micro PLC (Programmable Logic Controller) for power-supply state-machine control. Local control is achieved via pushbuttons and a color LCD touch screen. Remote control is mediated via micro PLC using embedded Modbus/TCP. Using a unique, data logging system, the operational parameters of the regulation loop can be safely monitored and recorded while the system is running at full power.

An Inter-Domain Routing Protocol for Multi-Homed Wireless Mesh Networks 0000-00-00 Johns Hopkins University

This paper presents a routing protocol for multi-homed wireless mesh networks that provide uninterrupted connectivity and fast handoff. The authors approach integrates wireless and wired connectivity, using multicast groups to coordinate decisions and seamlessly transfer connections between several Internet gateways as mobile clients move between access points. The protocol optimizes the use of the wireless medium by short-cutting wireless hops through wired connections, paying a very low overhead during handoffs. The paper demonstrates that inter-domain handoffs occur instantaneously, with virtually no loss or delay, for both TCP and UDP connections.

Tags:

Test Bed for a Wireless Network on Small UAVs 0000-00-00 American Institute of Aeronautics and Astronautics

Small (10kg) UAVs are low-cost low-risk candidates for emerging UAV applications. Examples include multi-UAV swarming, flocking, and sensing operations; or, as a communication relay for a network of ground radios mounted at fixed sites, on vehicles, or in sensors. A key enabler is the ability of the UAVs to communicate with each other and with ground based radios as a distributed peer-to-peer ad hoc network. Such networks allow any two radio nodes to communicate directly or through an arbitrary number of intermediate nodes which act as relays. Thus, understanding the performance of such networks in these UAV scenarios is necessary to understand the limits of multi- UAV operations.

Tags:

HP-UX 11i TCP/IP Performance 2007-08-01 Hewlett-Packard (HP)

The HP-UX Networking Stack is especially engineered and tested for optimum performance in an enterprise mission-critical environment. HP-UX 11i v3 exhibits excellent performance on NFS server performance and in the TPC-C benchmark, a measurement of intensive online transaction processing (OLTP) in a database environment. This white paper is intended as a guide to tuning networking performance at the network and transport layers. This includes IPv4, IPv6, TCP, UDP, and related protocols. Some topics will touch on other areas including sockets interfaces, network interface drivers and application protocols.

Tags: HP-UX

Application Visualization, Control, and Delivery of Services With Cisco Application-Oriented Networking 2007-08-01 Cisco Systems

IP networks have transported traffic without regard to the content they are carrying. But with the explosion in next-generation services that rely on an IP network for access and delivery, service providers see an opportunity to gain new revenue sources based on their unique position as providers of both services and the underlying network. To maximize this opportunity, operators need to understand more about the content of the traffic on their networks, not only at the packet level but also at the much higher application level. This paper looks at Application-Oriented Networking (AON), a new technology that lets operators reassemble application messages from the packets passing over their networks and use that message content to support delivery of next-generation services.

Tags: Application Development

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Title	Date Added	Company
Mobile Ad-Hoc Intern-Domain Networking	0000-00-00	University of Cambridge
After nearly three decades of work on mobile ad-hoc networking it is starting to see a convergence of better radios and better understanding of performance needs for MANET routing schemes, delivering working networks. One part of the next stage of evolution of such systems will be to support the federation of different MANETs together, whether concatenated together or interleaved. This paper presents some initial thoughts on how one might start to tackle this interesting problem space, which appears to be rather more complex than the still contentious area of Inter-domain routing in the Internet which the creation of BGP attempted to address. Tags: Mobile - Wireless Communications
Mitigating the Gateway Bottleneck Via Transparent Cooperative Caching in Wireless Mesh Networks	0000-00-00	Purdue University
Wireless Mesh Networks (WMNs) have been proposed to provide cheap, easily deployable and robust Internet access. The dominant Internet-access traffic from clients causes a congestion bottleneck around the gateway, which can significantly limit the throughput of the WMN clients in accessing the Internet. This paper presents MeshCache, a transparent caching system for WMNs that exploits the locality in client Internet-access traffic to mitigate the bottleneck effect at the gateway, thereby improving client perceived performance. MeshCache leverages the fact that a WMN typically spans a small geographic area and hence mesh routers are easily over-provisioned with CPU, memory, and disk storage, and extends the individual wireless mesh routers in a WMN with built-in content caching functionality. It then performs cooperative caching among the wireless mesh routers. Tags: Gateways - Hubs, Mobile - Wireless Communications
Enabling Greater Scalability and Improved File Server Performance With the Microsoft Windows Server 2003 Scalable Networking Pack and Alacritech Dynamic TCP Offload	2007-08-09	Alacritech
File serving is a critical workload for Microsoft Windows Server 2003 customers. However, despite their widespread use and the important role that they play, few file servers are actually used to their fullest potential. Companies often end up deploying additional servers to keep pace with user demand, which has the potential to impact operational overhead and IT budgets. A major factor in the efficient use of any server's resources is how network traffic is handled. Traditional methods of processing network traffic have proven to be inefficient in modern data centers. As users demand faster access to information, it is becoming increasingly more difficult to meet these expectations. Tags: Scalability, Windows NT - 2000 - 2003
Target-Based TCP Stream Reassembly	2007-08-03	Sourcefire
In their landmark 1998 paper, "Insertion, Evasion, and Denial of Service: Eluding Network Intrusion Detection," Thomas Ptacek and Timothy Newsham exposed some weaknesses in Intrusion Detection Systems (IDS). The authors revealed that intrusion detection systems cannot be effective and accurate because they do not necessarily process, or perhaps, even observe network traffic exactly as the destination host that receives the message does. This flaw exists in several layers of evaluation and processing of the packets including the IP, TCP, and application layers. As an example of the problem, consider traffic that has overlapping TCP segments that are sent to a given host.
Secure File Transfer	2007-08-03	Biscom
Biscom Delivery Server (BDS) was built from the ground up to be a superior enterprise-class file delivery solution, one explicitly designed for today's more demanding file delivery needs. Available as a Web application, Outlook add-in, or desktop client, BDS enables secure, authenticated, point-to-point delivery of files, messages, and unstructured data. With its extensive reporting and auditing capabilities, BDS can help organizations create a more secure communications infrastructure. In addition, the Java, SMTP, and Web services APIs available with BDS enable an organization to integrate secure delivery services into their existing applications. Tags: File and Network Servers, Data Recovery - Security
Modbus/TCP Controller for the Power Supplies in ALS BTS Beam Line	2007-08-02	Institute of Electrical and Electronics Engineers
The development, testing and commissioning of a self-contained power supply controller for four 100 KW power supplies for the upgraded Booster to Storage Ring (BTS) beam line at the Advanced Light Source(ALS) at the Lawrence Berkeley Laboratory, is presented. The power supply controller is a 3U high, rack-mount chassis that contains the regulation control-loop amplifiers, 16-bit DAC with microcontroller and a micro PLC (Programmable Logic Controller) for power-supply state-machine control. Local control is achieved via pushbuttons and a color LCD touch screen. Remote control is mediated via micro PLC using embedded Modbus/TCP. Using a unique, data logging system, the operational parameters of the regulation loop can be safely monitored and recorded while the system is running at full power.
An Inter-Domain Routing Protocol for Multi-Homed Wireless Mesh Networks	0000-00-00	Johns Hopkins University
This paper presents a routing protocol for multi-homed wireless mesh networks that provide uninterrupted connectivity and fast handoff. The authors approach integrates wireless and wired connectivity, using multicast groups to coordinate decisions and seamlessly transfer connections between several Internet gateways as mobile clients move between access points. The protocol optimizes the use of the wireless medium by short-cutting wireless hops through wired connections, paying a very low overhead during handoffs. The paper demonstrates that inter-domain handoffs occur instantaneously, with virtually no loss or delay, for both TCP and UDP connections. Tags:
Test Bed for a Wireless Network on Small UAVs	0000-00-00	American Institute of Aeronautics and Astronautics
Small (10kg) UAVs are low-cost low-risk candidates for emerging UAV applications. Examples include multi-UAV swarming, flocking, and sensing operations; or, as a communication relay for a network of ground radios mounted at fixed sites, on vehicles, or in sensors. A key enabler is the ability of the UAVs to communicate with each other and with ground based radios as a distributed peer-to-peer ad hoc network. Such networks allow any two radio nodes to communicate directly or through an arbitrary number of intermediate nodes which act as relays. Thus, understanding the performance of such networks in these UAV scenarios is necessary to understand the limits of multi- UAV operations. Tags:
HP-UX 11i TCP/IP Performance	2007-08-01	Hewlett-Packard (HP)
The HP-UX Networking Stack is especially engineered and tested for optimum performance in an enterprise mission-critical environment. HP-UX 11i v3 exhibits excellent performance on NFS server performance and in the TPC-C benchmark, a measurement of intensive online transaction processing (OLTP) in a database environment. This white paper is intended as a guide to tuning networking performance at the network and transport layers. This includes IPv4, IPv6, TCP, UDP, and related protocols. Some topics will touch on other areas including sockets interfaces, network interface drivers and application protocols. Tags: HP-UX
Application Visualization, Control, and Delivery of Services With Cisco Application-Oriented Networking	2007-08-01	Cisco Systems
IP networks have transported traffic without regard to the content they are carrying. But with the explosion in next-generation services that rely on an IP network for access and delivery, service providers see an opportunity to gain new revenue sources based on their unique position as providers of both services and the underlying network. To maximize this opportunity, operators need to understand more about the content of the traffic on their networks, not only at the packet level but also at the much higher application level. This paper looks at Application-Oriented Networking (AON), a new technology that lets operators reassemble application messages from the packets passing over their networks and use that message content to support delivery of next-generation services. Tags: Application Development