layer 3 Resources

ZDNet Dictionary Definition

Layer 3: In networking, the communications protocol that contains the logical address of a client or server station. It is called the "network layer" and contains the address (IP, IPX, etc.)...; Full Layer 3 Definition >>

ZDNet Resources

Using Linux Guests as Layer 3 Routers Between Guest LAN and Hipersocket LANs: This paper provides a short and simplified example of using a host system IP stack as a IP packet router between two or more network segments. This example network is a common configuration used with Linux on zSeries configurations where a Linux guest is used as a router between a...; Tags: Layer 3, Router, Guest, Linux, LANs, Network Technology, Networking, Routers & Switches, UNIX, Operating Systems, Open Source, Software; White papers 2006-04-25
Performance Evaluation of Layer 3 Low Latency Handoff Mechanisms: This paper investigates the performance of two Layer 3 low latency handoff protocols proposed by the IETF, namely Pre- and Post-Registration. These protocols use Layer 2 triggers to reduce the built-in delay components of Mobile IP. A simple analytical model is proposed that allows assessing the packet loss and the...; Tags: Layer 3, Performance, Protocol, Performance Evaluation, Performance Management, Human Resources, Workforce Management; White papers 2005-09-20
Build a scalable, flexible, and highly-available data center: This sample chapter, taken from Cisco Press' Data Center Fundamentals, focuses on three main properties of data center architectures: scalability, flexibility, and high availability. Data centers are rapidly evolving to accommodate higher expectations for growth, consolidation, and security. Although the traditional Layer 2 and Layer 3 designs...; Tags: Chapter, Layer 2, Data Center, Layer 3, Cisco Systems Inc., Data Centers, Storage, Hardware, Data Management; Book chapters 2005-08-19
Layer 3 Malformed Packet Testing in MCI's Public IP Network: Malformed packets associated with routing protocols can cause undesirable consequences if not detected and contained properly as close to the originator as possible. This issue magnifies in scope and complexity in a large-scale network, such as a public IP network. A malformed routing packet has the potential to impact thousands...; Tags: MCI Inc., Packet, Layer 3, Network, IP, IP Network, Routing Packet, Networking, Telecommunications; White papers 2005-08-01
Beyond the Basics: Technologies for Compelling Layer 3 VPN Services: Layer 3 VPNs offer secure, any-to-any communication over a service provider's IP/MultiProtocol Label Switching MPLS-based backbone network. Service providers that offer Layer 3 VPN services can take advantage of new, advanced features from Cisco Systems to differentiate their service, reduce operational and capital expenditure, and generate incremental revenue streams. This...; Tags: Layer 3, Service Provider, Cisco Systems Inc., Business Services, Networking; White papers 2004-12-01

MPLS VPNs: Layer 2 or Layer 3? Understanding the Choice: Since there's been data networking, there's been a debate between switched and routed architectures - stated in OSI terms, between performing functions at Layer 3 or Layer 2. Today, we see it again surfacing as network architects consider the design of Virtual Private Networks VPNs that take advantage of Multi-Protocol...; Tags: MPLS VPN, Layer 2, Layer 3, MPLS, VPNs, Networking, Network Security, Telecommunications; White papers 2002-07-05
Layer 3 Switching: An Introduction: 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. The paper analyzes Layer 3 switching from both a functional and an operational perspective, helping the reader make...; Tags: Layer 3; White papers 1998-05-01
Layer 3 Switching: This document 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. The document analyzes Layer 3 switching from both functional as well as an operational perspective, helping...; Tags: Layer 3; White papers 1998-05-01
Case Study for Layer 3 Authentication and Encryption: This case study explains the basic tasks for configuring a multi-service, extranet Virtual Private Network VPN between a Cisco Secure VPN Client VPN Client and a Cisco IOS networking device gateway. This case study describes IP Security Protocol IPSec tunnelling. It includes the following sections: Case Study Overview, and Site...; Tags: Layer 3, Cisco Systems Inc., VPN Client, Encryption, IPSec, VPNs, Network Security, Networking, Telecommunications, Security; Case studies
NETGEAR ProSafe Layer 3 Managed Switches With PoE Bring High Performance VoIP to Global Travel Agencies: SITA World Travel represents a wide range of foreign airlines, serves thousands of U.S. travel agents and consumers, handles over 10,000 passengers annually and is enjoying unprecedented growth. Fielding thousands of calls daily, SITA's 18 divisions relied on traditional exchanges incapable of transferring calls between offices and lacking in features...; Tags: Layer 3, Agency, High-performance, NetGear, SITA World Travel, Home Networking, Networking, Personal Technology; Case studies

Additional Resources

Juniper: Enterprise demand strong; Johnson hired to scale up: Current Juniper CEO Scott Kriens delivered strong quarter results, said enterprise demand was solid and outlined the primary reason Kevin Johnson was hired as his replacement: He knows how to scale. Ahead of its earnings report statement Thursday Juniper made the Johnson news official. The company has...; Tags: Revenue, Juniper Networks Inc., Kevin Johnson, Operational Accounting, Finance, Larry Dignan; Blog posts 2008-07-24
World's fastest Blu-ray recorder outruns Blu-ray media?: Buffalo just announced the world's fastest Blu-ray recorder capable of burning through your data at an 8x clip. The problem? BDA-approved media maxes out at 6x assuming you can find one. That's a funny bit of math, no? Available in Japan...; Tags: Recorder, Media, Blu-ray, BDA-approved Media, Advertising & Promotion, Serial ATA, Marketing, Storage, Hardware, Andrew Nusca; Blog posts 2008-07-24
Gateway FX4710 desktop computer: Gateway's last $1,000-ish desktop came out earlier this year with an aggressive 4GB of RAM and 64-bit Windows Vista. The resulting performance impressed us greatly. Perhaps working under the assumption that more is always better, Gateway's new $1,150 FX4170 comes with 64-bit Vista and 6GB of RAM. Surprisingly, we saw...; Tags: 64-bit, Desktops, Memory, Network technology, Flash memory, desktop computer, desktop, computer, Gateway Inc., Gateway FX4710; Product reviews 2008-07-23
Express Inventory (exe): Express Inventory is professional stock management software for Windows that allows you to manage inventory in one or several locations. When installed with Express Invoice you can create purchase orders to be sent directly to a vendor. This free Inventory management software allows you to manage stock levels thought categories,...; Tags: Stock, Inventory, NCH Software, Investment, Finance; Software downloads 2008-07-23
First paper-based transistors: Portuguese researchers have created the first paper-based transistors. To be more precise, they've made the first field effect transistors FET with a paper interstrate layer. According to the research team, these new transistors offer the same level of performance as 'state-of-the-art oxide based thin film transistors TFTs produced on glass...; Tags: Team, Transistor, TFT, Semiconductors, Hardware, Roland Piquepaille; Blog posts 2008-07-22
Open Source VoIP: Asterisk or FreeSwitch?: When the time came for a new PBX, Brian Snipes chose to do something a bit unconventional. The IT manager at law firm Hare, Wynn, Newell, and Newton LLP didn't purchase a commercial PBX, nor did he settle on the open source market leader,...; Tags: Phone, PBX, Attorney, FreeSwitch, Asterisk, Telephony, VOIP, Open Source, Telecom & Utilities, Networking, Telecommunications, Dave Greenfield; Blog posts 2008-07-22
First hints of Microsoft's "fight back" ads appear: First hints of Microsoft's "fight back" ads appearPerception IS reality.The damage is done. Apple is #3 in US home computer sales today. Perception [b]is[/b] reality and unfortunately for microsoft they've got battered, much of it being well deserved. This is the proverbial finger to plug a dyke breach.RE: First hints...; Tags: Microsoft Windows Vista (Longhorn), Microsoft Windows Vista, Microsoft Corp., advertisement; Discussion threads 2008-07-21
eMachines T5274: The eMachines T5274 is eMachines' higher-end budget desktop for the back to school season. While it seems like a good deal for $400, the fact is that the low-end PC market has become increasingly competitive this year, which makes it hard for systems such as this one that straddle two...; Tags: DVD, Consumer electronics, eMachines Inc., eMachines T5274; Product reviews 2008-07-21
DIRECTV: Well HERE's Your Problem, Ma'am...: Shortly after I posted my diatribe on my problems with my DIRECTV HD receivers and the company's horrible customer service, I was contacted by Stuart Sweet, a moderator on a popular Satellite TV forums site, DBSTalk. Apparently, my post had created quite a stirÂ and I was asked to register...; Tags: Digital Video Recorder, DirecTV, Satellite, TVs, Tv & Home Theater, Personal Technology, Home Entertainment, Jason Perlow; Blog posts 2008-07-20
FastScale Composerâ„¢ Suite: I just spoke with Jerry McCloud, VP of Business Development of Fastscale Technology, about the newest release of their product, FastScale Composerâ„¢ Suite. This product is aimed at reducing the complexity of creating and maintaining virtual machine images. Previous versions of the product supported VMware's ESX Server. This version adds...; Tags: Software, Environment, Image, Virtual Machine, FastScale Composer Suite Software Environment, Desktop Virtualization, Server Virtualization, Servers, Hardware, Dan Kusnetzky; Blog posts 2008-07-18