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The Network Time Machine

“We are consolidating VLANs to simplify the network.” – So said a CIO in a request for me to come in to consult on a LAN “upgrade” project.  The idea was to take my design below that ran beautifully for years: Anyway, they wanted to...

Network Complexity

To be or not to be complexThat is the question As with so many questions about IT, the answer is “it depends“. Complexity for the sake of complexity, or letting ego drive your designs is a bad idea for a lot of reasons. You probably don’t need to...

Barracuda Networks ESS Internal Mail Routing

I ran into an email delivery issue the other day that seems likely to come up here and there. My customer could receive email inbound from a domain of a vendor they do business with, but suddenly could no longer send messages to them outbound.All I had to go on was...

Etherchannel/LAG Dell VRTX & Cisco Catalyst Switch

If you read my previous Kaboom post, you may be wondering why I decided to post on another Dell VRTX. Well, the fact is I’ve still got a few of these out in the field, so they remain relevant to me. This is a another customer’s deployment and I just...

When “no” should be the answer

Sometimes consultants have a problem saying “no”. Too often things are thrown together to please a customer without regard to “the big picture”. Far worse is poor work simply due to laziness or a lack of time. With the lack of time excuse, it...