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This past week I have been working on a new campus build-out for one of our customers and came across some interesting behavior regarding 100Gbps and 25Gbps uplinks between switches.

A simplified view of the setup in question is shown below:

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February 24th is coming up fast and those of us working on our certifications are scrambling to complete them before the change. But for those who may not get it done before the deadline, you may need to start studying for the new exams. But what is on the new exams, what topics are covered, and most importantly what training material is out there. Today I will be comparing the certification...

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I was recently called in to assist a customer with identifying the cause of slow performance for an application within their environment. I don’t know about you but I love a good networking who done it, so I could not resist accepting the case. The following blog post documents my experience and findings while working this investigation that will from here on out be known as the “The Case of the...

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