3/10/2024 0 Comments Capture serial port data wiresharkAs you may already know SPAN ports are a switch feature which is required if you want a copy of packets you won’t usually get. This part will refresh some of the things I’ve have already covered in the first post of the series, mostly because some readers may jump into this part without bothering reading the other parts first. The goal of this blog post is to give you as much information about practical SPAN port usage in real life network analysis situations with all the advantages and disadvantages so that you can decide yourself if a SPAN port is good enough (read: “precise enough”) for what you need to do. I said it before and I’ll probably say it again a few more times in this blog post series: in capture situations, it always comes down to the question “how precise do you need your capture to be?” ![]() Even more so since it looks like there is a constant “battle” going on between SPAN and TAP supporters – some analysts will tell you “you need to use a TAP!” while others will say the opposite. ![]() We have briefly covered SPAN ports in previous posts of this series, but there are so many things to consider that we have to look at the advantages and problems more closely.
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