Archive | February, 2008

If I knew what the heck you were saying, I’d be impressed: The importance of communication and measurement in justifying IT costs.

I’m reading some “at-a-glance” promotional material for a major new network hardware product. There is a slight problem though. I can’t make heads or tails of it. Certainly I can’t figure out what it’s trying to say either “at a glance” or after hours of technical study. This could be because I don’t have the [...]

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Latency Calculator

NetQoS Network Estimation Tools and Latency Calculator

In NetQoS’s resource room, we’ve got a free Web-based app called the NetQoS Network Estimation Tools (or “latency calculator” for short) that allows you to calculate the theoretical latency of network connections under a number of different scenarios. Allow me to clarify: A number of different plausible scenarios. Like, for example, if you knew that [...]

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Ryan Davis: Review of O’Reilly’s ‘Network Warrior’.

We’ve recently been linked to by Slashdot again, and we’re getting a lot of traffic from StumbleUpon, so we thought this would be an opportune time to “share the love.” Recently, I found out about Ryan Davis, a network engineer at the University of Missouri. He’s publishing a personal blog dealing in large part with [...]

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Hotter under the water: A look at the undersea Internet cable “conspiracy” and the impact on global networks

With mysteries abounding about the undersea cables cut in the Middle East, Network Performance Daily talked to Eric Schoonover, a senior analyst at TeleGeography, a market research firm specializing in telecommunications supply, demand, and pricing. We wanted to get to the bottom of what’s happening with the undersea cables and widespread network outages, and see [...]

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A step forward for IPv6: ICANN rolls out IPv6 connectivity for key DNS servers.

The Internet Corporation for Assigned Names and Numbers (ICANN) recently put out a press release which announced that six of the 13 root servers in the root zone (presumably located in-between the Phantom Zone and the Forbidden Zone) now had IPv6 addresses. It’s a small step but one which is necessary for bigger steps to [...]

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Cisco Nexus 7000: Podcast with Douglas Gourlay

Recently, Network Performance Daily did a story on the Cisco Nexus 7000 switch, which had recently been announced by Cisco and will likely be a very important piece of enterprise hardware. After our article, Douglas Gourlay, the Senior Director of Marketing and Product Management of Cisco’s Data Center Business Unit, contacted us and pointed out [...]

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War is unhealthy for network performance and other living things.

Things have gotten slower for many Web users making international communications because of three (or four) undersea cables recently cut. This is especially true for those in the middle or near east, but as the traffic normally reserved for the lines that were cut is now being routed over alternate cables, everyone’s traffic is a [...]

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Editorial: The Top Eight Network Performance Issues that you should keep in mind for SuperTuesday, Part II

Yesterday, we covered four issues that you should keep in mind before voting in the primaries, covering Intellectual Property Laws, Broadband Penetration/Infrastructure, Spectrum Regulation/Allocation, and Network Neutrality. We conclude our list of issues below. 5) Communication Interception, Security, and Privacy Whether or not it is justified, we know that it has been the policy of [...]

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