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ASA 5505 Guest Wireless – Base License
Probably one of the larger items I have been getting config requests for is wireless configuration, specifically Guest and Production wireless SSID’s. That is to have an AP (Cisco!) that can host dual...
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Span and Mirror ports
Being able to analyze other users network traffic is a key part of troubleshooting networks. Back in the day when using hubs was common than switches, it was really easy to analyze network traffic....
View ArticleSwitchport Errors – Determining the cause
Many times we (network engineers) hear the complaint “the network is working, but it is terribly slow”. This is often one user’s perception of a perfectly working network however, other times there is...
View ArticleUsing auto-MDIX on Cisco Switches (mdix auto)
For those of you who don’t know what MDIX is, it stands for Media Dependant Interface Crossover. In other words, it’s the feature on switches that allows you to use a patch (straight through) cable...
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6500 Architecture and evolution
Since I’ve recently become more interested in the actual switching and fabric architectures of Cisco devices I decided to take a deeper look at the 6500 series switches. I’ve worked with them for...
View ArticleWhy does my traceroute look like that?
So here’s another common question I see from other engineers. Goes something like this… "I ran a traceroute from the switch and I’m getting all sorts of goofy responses. Lines that show multiple hops...
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