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Network Diagramming Software, FREE or Open-Source

There are lots of Network Diagramming Software, but it doesn’t satisfies me. In a reason that it’s not free. I need a Network Diagramming Software that can design both Logical and Physical, and it...

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Network Designing

I have seven Sites. Each Site contains about 15 to 20 users who are connect via ADSL and lease line. My question is how to design a network infrastructure. To Solve above problem I Create One Domain...

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Should Cat6 cables be used for servers (‘important hosts’) rather than Cat5-E?

Wouldn’t you want your crucial hosts being served with the most signal-reliable/improved method of connectivity? Gig Switch<->Cat5E<->Server? or Gig Switch<->Cat6<->Server? My...

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Wireless Signal Broadcast Shapes and Device Location

I understand that this might be a broad question, so feel free to make it bleed with edits, but what considerations do I need to make with regards to signal shapes and device locations in a...

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When/why to start subnetting a network?

Under what conditions does one start to consider subnetting a network? I’m looking for a few general rules of thumb, or triggers based on measurable metrics that make subnetting something that should...

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Using VLANs that are routed together?

I have a quick question that’s bugging me the more I read about VLANs. So far I understand that they are useful for dividing the network into sub-sections, but if you route them together does that not...

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How best to decouple a web service from its publicly-available domain names?

I’m trying to design a system that allows for multiple public endpoints that funnel into a single web service. The web service must be able to determine which endpoint was the intended destination of...

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place of domain controller and exchange in network

I am searching for the best practice of securely deploying windows domain controller and exchange in a small-medium size network (50+ users, 20+ virtual servers). The topology is single firewall...

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Network design help needed (main office + branch offices + central server)

I have a head office and a number of suboffices. Both head office and suboffices need to access some corporate server, which is physically in the head office. But suboffices should not be able to...

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Can someone tell me what is meant by “layer 2 adjacency”?

I am working on designing the logical topology for a new data center rollout. I’m reading “Cisco Data Center Infrastructure 2.5 Design Guide” and going with the multi-tier design. There are multiple...

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