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- Efficient Use of Memory Bandwidth to Improve Network Processor Throughput
- This paper considers the efficiency of packet buffers used in packet switches built using Network Processors NPs. Packet buffers are typically implemented using DRAM, which provides plentiful buffering at a reasonable cost. The problem addressed in this paper is that a typical NP workload may be unable to utilize the...
- Tags: Processor, Bandwidth, DRAM, Network, Memory Bandwidth, Packet Buffer, Memory, Routers & Switches, Semiconductors, Hardware, Components, Networking
- White papers 2008-01-01
Additional Resources
- An Efficient Buffer Management in a Network Interface Card
- This paper proposes a dynamic packet buffer management algorithm for a protocol processor in a network terminal. The protocol processor is to handle high-speed data streams, more than 10 Gb/s, in a Network Interface Card NIC. There are two types of packet buffer management algorithms, static and dynamic. In general,...
- Tags: Network, Network Interface Card, Management Algorithm, Protocol Processor, Engineering, Networking
- White papers 2006-07-01
- Achieving 100% Throughput in TCP/AQM Under Aggressive Packet Marking With Small Buffer
- This paper investigates the performance of TCP/AQM systems with ECN marks under the aggressive scale for packet marking and a buffer of size smaller than O(?N). Under such a scale, the paper demonstrates that randomness both in packet arrivals and in packet marking must be taken into account and developed...
- Tags: Packet, Buffer, North Carolina State University, Performance Management, Human Resources, Workforce Management
- White papers 2006-08-01
- Exploring the anatomy of a data packet
- Have you ever performed surgery on data packets? There are times when that may be the best way to troubleshoot and optimize your network. This edition of the Packet Professor will get you started in examining TCP/IP packets.One of the key features of networking is the bundling of data into...
- Tags: NETWORKING, TCP/IP, Michael Mullins CCNA, MCP, UDP, network, OSI
- Technical articles 2001-07-02
- Competitive Analysis of Buffer Policies With SLA Commitments
- This paper considers an abstraction of the problem of managing buffers where traffic is subject to service level agreements SLA. The service provider must on one hand deliver all committed packets, and on the other hand can get extra revenue for any excess packet delivered. Using competitive analysis, they have...
- Tags: SLA, Packet, Competitive Analysis, IEEE, Service Level Management, Engineering, It Operations, It service Management
- White papers 2008-09-08
- Modern Network Security: The Migration to Deep Packet Inspection
- The evolution of network and application-layer security threats has significantly altered the requirements for modern network security architecture. Three years ago, a simple Stateful Packet Inspection SPI Firewall was sufficient to stop basic attacks such as port scans and DoS attacks. Now, application-layer buffer overflow attacks, Spam, Spyware, Polymorphic Trojans,...
- Tags: eSoft, Network, Migration, Security, Networking, Network Security, Viruses And Worms
- White papers 2005-07-14
- TCP WestwoodVT: A Novel Technique for Discriminating the Cause of Packet Loss in Wireless Networks
- Conventional TCP in wireless environment cannot differentiate packet losses caused by network congestion from those caused by wireless link errors, thus, resulting in severe performance degradation. Accordingly, efficient operation of TCP in wireless networks is a critical issue in the context of differentiation between packet loss. Towards this issue, the...
- Tags: Technique, Network, TCP, Wireless Network, Packet Loss, Tcp/Ip, Networking, Wi-Fi, Wireless
- White papers 2007-08-28
- An Experimental Study of Router Buffer Sizing for Mixed TCP and Real-Time Traffic
- Recent research results on Internet router buffer sizing suggest that when TCP traffic is well-paced, Internet routers need as few as 20-30 packet buffers to realise near maximum link throughputs, independent of link capacities and number of TCP flows. However, these studies have ignored non-TCP traffic, on the grounds that...
- Tags: Router, Traffic, TCP, Tcp/Ip, Routers & Switches, Networking
- White papers 2006-07-12
- Dynamic Input Buffer Allocation (DIBA) for Fault Tolerant Ethernet Packet Switching
- This paper describes a new fault-tolerant architecture to realize an Ethernet layer-2 switch. This architecture includes a memory buffer scheduler to assign memory buffers dynamically to the input ports of the switch. To evaluate this architecture and produce throughput and latency projections, the paper has developed a switch simulator called...
- Tags: Fault-tolerance, Northeastern University
- White papers 2008-01-01
- Buffer Overrun in MDAC Function Could Allow Code Execution (832483) 1.0 (Windows)
- Microsoft Data Access Components MDAC is a collection of components that provides the underlying functionality for a number of database operations, such as connecting to remote databases and returning data to a client. When a client system on a network tries to see a list of computers that are running...
- Tags: Buffer-overrun, Attacker, Microsoft Windows, Microsoft Corp., Microsoft Data Access Components, Databases, Enterprise Software, Software, Data Management
- Software downloads 2004-01-13
- LRED: A Robust and Responsive AQM Algorithm Using Packet Loss Ratio Measurement
- Active Queue Management AQM is an effective means to enhance congestion control, and to achieve trade-off between link utilization and delay. The de facto standard, Random Early Detection RED, and many of its variants employ queue length congestion indicator to trigger packet dropping. Despite their simplicity, these approaches often suffer...
- Tags: Algorithm, IEEE, Active Queue Management, Tcp/Ip, Engineering, Networking, Viruses And Worms, Security
- White papers 2007-01-01
- An FPGA-Based Network Processor for IP Packet Compression
- This paper describes the design, implementation, and experimental evaluation of a reconfigurable network processor that can do on-the-fly content adaptation of IP packets for wired or wireless networks. In the demonstration application, FPGA technology is used in conjunction with traditional RISC micro-processors to perform IP packet compression in hard-ware, using...
- Tags: Network, University Of Calgary, IP, FPGA, Networking, Network Technology, Processors, Semiconductors, Hardware, Components
- White papers 2007-01-01
- Enhancement of Video Streaming QoS With Active Buffer Management in Wireless Environments
- With the emergence of high-speed wireless cellular networks, such as High Speed Downlink Packet Access HSDPA or WiMAX, new services with a high bandwidth demand have been introduced. One example is non-interactive video streaming. In contrast to wireline networks, the characteristics of wireless links, such as a time-varying bandwidth and...
- Tags: HSDPA, Network, Streaming Video, Video, University Of Stuttgart, Corporate Communications, Web Site Development, Cellular Phones, Wi-Fi, Wireless, Marketing, Internet, Consumer Electronics, Personal Technology
- White papers 2007-02-27
- Marvell Yukon 88E8001/8003/8010 PCI Gigabit Ethernet Controller 7.29.4.3 (Windows)
- The 32-bit Yukon 88E8001 device provides highly reliable and cost-effective Gigabit Ethernet connectivity for desktop and mobile applications.This integrated device combines the Marvell Alaska PHY transceiver and a robust Gigabit Ethernet Media Access Controller MAC,with a 32-bit PCI interface and a deep 64 KB packet buffer This powerful configuration enables...
- Tags: Marvell, Gigabit Ethernet, Microsoft Windows, Ethernet, Network Technology, Networking
- Software downloads 2004-11-26
- Using datagrams in Java
- The User Datagram Protocol UDP allows an application to send data in packets with a low overhead and is employed in some important standards, like DNS and RADIUS. Many programmers may not be familiar with the protocol, though, since it is harder to program and less frequently used than TCP....
- Tags: TCP/IP, NETWORKING, Alexandre Pereira Calsavara, data buffer, Java, socket, datagram, UDP, DatagramPacket
- Technical articles 2003-11-13
- Tech Tip: Snort vulnerabilities are nothing to sneeze at
- By Mike MullinsSnort is a common open source network packetmonitoring and intrusion detection tool. Released in December 1996,it was originally developed for UNIX-based systems. Since then,Snort has been ported to all the major UNIX-based operatingsystems, Windows operating systems, and MacOS X. Snort has threecommon uses: packet sniffing, packet logging, and...
- Tags: buffer-overflow, preprocessor, sniffer, Snort
- Technical articles 2003-12-08
- Database management: Optimizing your Oracle*Net configuration
- Oracle databases are often shared across geographical areas, so it's imperative that the Oracle professional understand how database performance is affected by network communications. The Transparent Network Substrate TNS, provided by Oracle, allows distributed communications between databases.The TNS, which is a distributed protocol, allows for transparent database communications between remote...
- Tags: NETWORKING, Databases, Donald Burleson, database management, Oracle*Net, Oracle Corp., network, database
- Technical articles 2003-12-16
- Optimize an Oracle network configuration
- Oracle databases are often shared across geographical areas, so it's imperative that the Oracle professional understand how database performance is affected by network communications. The Transparent Network Substrate TNS, provided by Oracle, allows distributed communications between databases.The TNS serves as an insulator between Oracle’s logical data request and the physical...
- Tags: NETWORKING, Databases, Transparent Network Substrate, network configuration, Donald Burleson, Oracle Corp., Oracle Net, network
- Technical articles 2003-11-18
- Microsoft Security Bulletin MS02-039 Q323875 (Windows)
- SQL Server 2000 introduces the ability to host multiple instances of SQL Server on a single physical machine. Each instance operates for all intents and purposes as though it was a separate server. However, the multiple instances cannot all use the standard SQL Server session port (TCP 1433). While the...
- Tags: Microsoft SQL Server, Microsoft SQL Server 2000, Microsoft Windows, Microsoft Corp., Databases, Enterprise Software, Software, Data Management
- Software downloads 2002-07-25
- Use sendfile() to optimize data transfer
- Developers supporting the rapid growth of the Internet are faced with a growing problem: how to streamline data transfer from the server to the client. Sendfile is a relatively new operating system kernel primitive introduced to solve the problem.By Alexander Tormasov and Alexey KuznetcovOne of the most important problems with...
- Tags: Linux, Operating systems, NETWORKING, UNIX, OPEN SOURCE, Guest Contributor, syscall, data transfer, out_fd, in_fd, context-switch, operating system
- Technical articles 2002-03-12
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