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The answer to the top 5 virtualization problems

Transitioning to a virtualized network can be challenging for network engineers, despite the advantages. Understand these top five virtualization problems and how to handle them.
vCloud and VEPA: Neither answer is a winner

vCloud and VEPA fail to address the virtualization networking problem, as both are deemed proprietary and don’t enable networking functions within the vSphere environment.
When physical security breaches are the problem

Network engineers are so busy dealing with intrusion prevention and firewalling that they forget about physical security breaches. Blogger Ethan Banks has some advice.
Cisco upgrades the Catalyst 6500…but some wonder why

The Cisco Catalyst 6500 upgrade announced this year didn't excite everyone as expected. Blogger Greg Ferro wonders why Cisco didn't stay focused on the Nexus line instead.

Working With Servers and Desktops

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Can you please explain how a DHCP server allocates IP addresses dynamically?

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Why can't I browse the private network to see my Windows 2000 server?

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Why won't XP client connect over my VPN on a Win2000 SP4 server?

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I would like your advice on an AAA server application for authenticating and monitoring traffic.

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