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Layer Four Traceroute
Downloads LFT (Layer Four Traceroute) is a sort of "traceroute" that often works much faster than the commonly-used Van Jacobson method and goes through many configurations of packet-filter based firewalls. LFT also distinguishes between TCP-based protocols...
[May 12, 2008, 8:00]
SoftMAC: Layer 2.5 MAC for VoIP Support in Multi-Hop Wireless Networks
White Papers This paper presents the challenges in supporting VoIP services over multi-hop wireless networks using commercial IEEE 802.11 MAC DCF hardware, and proposes a novel software solution, called Layer 2.5 SoftMAC.
[June 16, 2006, 1:00]
Layer 3 Switching: An Introduction
White Papers This paper is a map through the jungle of internetworking infrastructure, particularly focusing on how Layer 2 switching and Layer 3 routing have combined to form the powerful Layer 3 switching architecture.
[August 20, 2003, 2:54]
Passport 8600 Routing Switch - Layer 2/3 Performance
White Papers Network managers deploying enterprise-class Layer 2/3 routing switches understand the importance of line-rate throughput. With the emergence of VoIP and other latency sensitive applications, line rate throughput and low latency are essential.
[October 21, 2003, 5:43]
Layer 2 Extension Between Remote Data Centers - Cisco Catalyst 6500 Series Virtual Switching System and L2VPNoGRE
White Papers Cisco recommends retaining Layer 2 domains within each data center. However to meet new application framework requirements or for migration purposes, the Enterprise may have to extend Layer 2 beyond the Data Center.
[October 7, 2008, 1:01]
A Network Layer Architecture for Personal Networks
White Papers It will undoubtedly be the network layer that should integrate a person's all devices and networks into one single network for the person; the Personal Network. This paper introduces a network layer architecture for PNs that can handle the dynamic...
[August 4, 2008, 19:08]
Cooperative Data-Optical InterNetworking: Distributed Multi-Layer Optimization
White Papers A framework is developed for distributed multi-layer optimization. This paper presents a novel approach for joint optical network provisioning and IP traffic engineering, in which the IP and optical networks collaboratively optimize a combined...
[December 9, 2006, 0:00]
Enhancing TCP Over HSDPA by Cross-Layer Signalling
White Papers A comprehensive performance evaluation of a cross-layer solution to increase users' downlink data rates over HSDPA is provided. The solution consists of a proxy entity between a server and the Radio Network Controller, and cross-layer signaling...
[December 6, 2007, 0:01]
Using a five-layer filter to cut spam
News We have a five-layer spam filtration process that eliminates much of the problem. While we take as much care as possible to protect our servers, they are but one layer and a deception as far as the spammers are concerned.
[December 15, 2003, 12:00]
Avoiding the IP Fragmentation Process at the Application Layer of the OSI Reference Model
White Papers The present study describes some considerations about implementing the IP fragmentation avoiding at the Application Layer. The modern recommendations regarding the IP fragmentation process is to avoid it.
[December 27, 2007, 0:01]
A Cross-Layer Strategy for Energy-Efficient Reliable Delivery in Wireless Sensor Networks
White Papers This paper investigates the problem of the lifetime maximization in wireless sensor networks under the constraint of end-to-end transmission success probability, by adopting a cross-layer strategy that considers physical layer (i.e.power control...
[August 10, 2007, 11:05]
A Software Architecture for Cross-Layer Wireless Network Adaptations
White Papers The introduction of wireless networks has created a need to violate this layered discipline to create cross-layer designs or adaptations. Ad-hoc implementations of such cross-layer adaptations reduce the level of modularity and abstraction in the...
[August 10, 2007, 11:10]
Performance Modeling and QoS Evaluation of MAC/RLC Layer in GSM/GPRS Networks
White Papers A continuous time Markov chain model is used in this paper to analyze the GSM/GPRS MAC/RLC layer function and compare the performance of three different channel allocation algorithms. Using simulation, the analytical model is verified.
[November 21, 2005, 23:00]
ECLAIR: An Efficient Cross Layer Architecture for Wireless Protocol Stacks
White Papers Significant research has been done for cross layer optimizations of the protocol stack. To enable rapid deployment of existing and new cross layer optimizations an architecture for cross layer optimizations is essential.
[February 21, 2006, 23:00]
Sony debuts dual-layer DVD burners
News Sony announced on Tuesday two new drives supporting dual-layer discs for DVD recordable formats, enabling storage of 8.5GB of data. Both drives read and write to DVD+/-R, DVD+/-RW, CD-R and CD-RW discs as well as to DVD+/-R dual and double-layer...
[May 4, 2005, 9:55]
The Business Case for Network-Based Layer 3 IP VPNs
White Papers Layer 3 Virtual Private Networks (VPNs) developed in the late 1990s are now delivering secure, reliable office connectivity solutions for various applications of many Fortune 1000 companies. These Layer 3 IP VPNs also improve performance and...
[October 9, 2009, 1:39]
TCP Performance Dynamics and Link-Layer Adaptation Based Optimization Methods for Wireless Networks
White Papers With the continuing emergence of wireless technologies ever since the work on TCP performance over wireless began, smart link-layer mechanisms like adaptive modulation and coding, power control, and incremental redundancy have been designed and...
[December 6, 2007, 0:01]
Providing Secure Connectivity to Remote Users With Secure Sockets Layer VPNs
White Papers The presenter of this webcast explains how an organization can cost-effectively and securely extend the reach of its corporate network by establishing an encrypted tunnel across the Internet with a Secure Sockets Layer (SSL) VPN.
[April 21, 2007, 1:00]
Avoiding IP Fragmentation at the Transport Layer of the OSI Reference Model
White Papers The present study describes the possibility to use the built options of the Transport Layer for avoiding fragmentation. The heterogeneous nature of the Internet communications is transparent for the end user.
[December 27, 2007, 0:01]
Improving TCP Performance Over Wireless WANs Using TCP/IP-Friendly Link Layer
White Papers In addition, the paper employs a TCP/IP-friendly link layer protocol which minimizes the additional delay due to the Automatic Repeat reQuests (ARQ) by limiting the number of retransmission attempts and by adding redundancy in the retransmitted...
[December 27, 2007, 0:01]
