GNS3 is a graphical network simulator that allows simulation of complex networks.

To allow complete simulations, GNS3 is strongly linked with :

* Dynamips, the core program that allows Cisco IOS emulation.
* Dynagen, a text-based front-end for Dynamips.
* Pemu, a Cisco PIX firewall emulator based on Qemu.

GNS3 is an excellent complementary tool to real labs for Cisco network engineers, administrators and people wanting to pass certifications such as CCNA, CCNP, CCIP or CCIE.

It can also be used to experiment features of Cisco IOS or to check configurations that need to be deployed later on real routers.

This project is an open source, free program that may be used on multiple operating systems, including Windows, Linux, and MacOS X.
Features overview

* Design of high quality and complex network topologies.
* Emulation of many Cisco router platforms and PIX firewalls.
* Simulation of simple Ethernet, ATM and Frame Relay switches.
* Connection of the simulated network to the real world!
* Packet capture using Wireshark. [via Layertwo]

Visit the Site>> GNS3 Site HERE

The first mobile telephone using Google’s Android software has been unveiled.

The T-Mobile G1 handset will be available in the UK in time for Christmas. The first device to run the search giant’s operating system will feature a touch screen as well as a Qwerty keyboard. It will be available for free on T-Mobile tariffs of over £40 a month and includes unlimited net browsing.

Other features include a three megapixel camera, a ‘one click’ contextual search and a browser that users can zoom in on by tapping the screen. The handset will be wi-fi and 3G enabled and has built-in support for YouTube. Users will also have access the so-called Android Market, where they will be able to download a variety of applications.

The T-Mobile G1 is the first phone to use Android. Google announced its plans for the Android phone software in November 2007 with a declared aim of making it easier to get at the web while on the move. To help develop Android, Google also unveiled the Open Handset Alliance - a partnership of more than 30 firms that would work to make phone software easier to work with. The group includes operators such as Telefonica, handset makers such as HTC and Motorola as well as chip makers such as Intel and Qualcomm.

Many of the partners demonstrated early prototype Android phones at the Mobile World Congress held in Barcelona in mid-February. The idea behind Android is to do for phone software what the open source Linux software has done for PCs. Developers of phone software can get at most of the core elements of the Android software to help them write better applications. [BBC NEWS]

Turn your PC into an easy-to-use virtualization platform with Sun xVM VirtualBox, the free and open source software that runs on all major operating systems and eliminates the need for tradeoffs or multiple hardware systems.

Features & Benefits
Sun xVM VirtualBox supports any operating system as a guest OS, giving you the flexibility to develop applications on your platform of choice.

Which means you can run Windows in a virtual machine on a Mac or Linux platform, or run Solaris OS and Windows applications right alongside Apple applications on your MacBook.

At a Glance
* Free and open source desktop and laptop virtualization.
* Runs multiple operating systems at the same time on the same PC.
* Enables cross-platform, multi-tier applications.
* Supports the Solaris OS, OpenSolaris, Windows, Macintosh OS X, and Linux.
* Improves efficiency with intuitive blend of platforms and applications.
* Provides remote access to guest virtual machines from anywhere.
* Supports virtual server environments.
* Protects existing hardware investments. [SUN]