Where are you coming from?
One of the first mistakes that new network operators make is that they don’t have a good idea of where they already are.
Take the case above. Say you want to get to Disneyland. Google can tell you were Disneyland is, but if you don’t have a starting point, there’s really no way to understand how you are going to get to where you want to be.
So the first thing you need to do when you’re trying to operate a new network is figure out exactly where you are.
This concept is known as baselining
At its essence, baselining is really nothing more than taking stock of where you are. Most experienced engineers instinctively know when they reach a new environment that they want to spend some time just getting to know the place before they make any changes. Network Management as a discipline takes this to a much more structured level.
There are a few types of baselines, performance and configuration been the major.
This is the simple act of contain and recording things in the network. One of the common mistakes that I see new network management practitioners make is the ” I want to monitor everything! ” move.
Now there are some grounds for this. Remember this guy?
“When you can measure what you are speaking about, and express it in numbers, you know something about it. But when you cannot express it in numbers, your knowledge is of a meager and unsatisfactory kind.”
Lord Kelvin, 1891