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Hello Sir,,
I did read the article , its nice but it is still not what I want ,,I want some thing practical to do the daily work of network administration and trubleshooting and solving problems,, as an example to clear my point of view in this article point No,4 when he mentioned the network diagraming tools he didn't give a name for one or link to web contains such tool to be tested at least this is what I mean practicle tool ,
Hope to hear from you sir and thanks alot for your help and effort .