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Cisco tips: Track down communication issues – Part 2

By On March 16, 2010 · 3 Comments

In the 1st Part of this series, I’ve described the most common steps that you should follow to troubleshoot a total lack of communication between a Layer 2 device (Cisco switch) and an end user connected device. As I promised here is the second part, in which I’ll try to show you what you can check when you have no problem with connection, but still you encounter a degradation [...]

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Limit traffic on a Cisco switch L2 port with minimal configuration

By On November 14, 2008 · 1 Comment

Let’s say that somebody (or some task in a test) ask you to limit the inbound traffic on a switch Layer 2 port by using minimal configuration possible. I must say that in the first steps I failed this task miserable, but actually is very simple to do it.

I will use a plain layer 2 Cisco 2950 switch for this task. I observed that I could not implement this on a Cisco 3500XL. I don’t know if the IOS image was wrong, but I [...]

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