Could anyone name few latest Network modeling tools , which are readily available and freeware?

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Fabrício Herpich

The link that I added is not a modeling tool, but maybe can help you in your investigations in Computer Networks.

Conference Paper Construcão e Análise de um Mundo Virtual 3D para o Ensino e ...

Majid Ahmad

Dear Fabricio Herpich ;

I appreciate your response.

but, the language of the manuscript isn't English.

Can you forward an English version.

Thanks

Majid

Unfortunately I don't have an English version for this paper. But I'm publishing this research in an international chapter of a book, as soon as possible, I send you.

Dear Fabricio Herpich

Thank you.

Shubham Gupta

The most popular tools are -

Commercial

NetSim -http://www.tetcos.com/

Opnet - http://www.riverbed.com/products/performance-management-control/opnet.html

Free

NS3 - https://www.nsnam.org/

Neeraj Kumar

NS-2

Hang Shen

Greencloud: http://greencloud.gforge.uni.lu/

It offers a detailed fine-grained modeling of the energy consumed by the computing servers, network switches, and communication links.