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I wish to simulate a large campus network which contains routers, switches and hosts. What softwares can help me simulate different topologies and measure bandwidth, delay, congestion, link utilization and other parameters

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To a first approximation, Google. – womble Jun 10 '12 at 1:06
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That's funny, because I found two in the first 5 results, along with a wikipedia page that has a list, and a link to another list. You would get more assistance if you described what you had found, and why it was not suitable, but it would still be off-topic because we don't do shopping questions. – womble Jun 10 '12 at 1:09
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The incredibly unobvious phrase "network simulation software". – womble Jun 10 '12 at 1:12
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@thinice - you do realize that womble is one of the top rep users on the site, correct? He very much "understands what this place is about". It is true that we discourage "just google it" answers. That's why womble posted it as a comment, and a fair one at that. We expect people do to at least a modicum of research and due diligence before asking here. – EEAA Jun 10 '12 at 2:28
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1) Shopping questions are eternally off topic. 2) For all the protestation that this isn't a "just google it" question, I've certainly found a ton of software that can do this for having only given a few seconds to the effort, and using the inferior Bing search engine. 3) Free will be an exceedingly hard requirement to fill for your specifications. 4) Shopping questions are eternally off topic here. (repeated for truth) – WesleyDavid Jun 10 '12 at 2:45
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closed as off topic by MDMarra, womble, EEAA, WesleyDavid, mgorven Jun 10 '12 at 2:40

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1 Answer

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Cisco Packet Tracer is a powerful network simulation program that allows students to experiment with network behavior and ask “what if” questions. As an integral part of the Networking Academy comprehensive learning experience, Packet Tracer provides simulation, visualization, authoring, assessment, and collaboration capabilities.

Packet Tracer but you have to register first before downloading.

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