-: Network management. 2 2
In this section of the course, 3 3
we're going to talk about network management. 4 4
Now network management is the process of administering 5 5
and managing computer networks. 6 6
When you perform network management, 7 7
you're involved with thought analysis, 8 8
performance management, 9 9
provisioning of networks and clients, 10 10
as well as maintaining the quality of service. 11 11
To properly manage your network, 12 12
you need to ensure that you have 13 13
the right network documentation in place, 14 14
which includes the physical network diagrams, 15 15
logical network diagrams, wiring diagrams, 16 16
site survey reports, audit and assessment reports, 17 17
and baseline configurations, 18 18
as these are some of the key 19 19
and foundational pieces of documentation necessary 20 20
to fully understand where your network resides 21 21
and how it operates. 22 22
Also, you need to look at various performance metrics 23 23
and sensor data from across your network and its devices. 24 24
For example, if you don't know that one of your routers 25 25
is experiencing high processor utilization, 26 26
you may not be able to predict an upcoming network failure 27 27
or prevent it from occurring. 28 28
As you manage your network, you're also going to be working 29 29
to monitor the data flowing across this network, 30 30
which means you need to be able 31 31
to use things like NetFlow data to better understand 32 32
where this data is flowing. 33 33
On a network device level, 34 34
you can also manage individual interfaces 35 35
by considering their status, statistics 36 36
and the errors they generate. 37 37
Finally, it becomes really important 38 38
to understand the environmental factors 39 39
that can affect your network. 40 40
After all, our network devices are not operating 41 41
in the middle of nowhere, 42 42
but instead they're located inside of our data centers 43 43
and telecommunication closets. 44 44
To keep them operating at peak performance, 45 45
our devices need to ensure they're experiencing 46 46
the right environmental conditions, 47 47
and that means we have to make sure 48 48
these devices have the proper power, space and cooling 49 49
within their operating environments. 50 50
So in this section, we're going to focus on domain three, 51 51
network operations, and we're going to talk 52 52
about objectives 3.1 and 3.2. 53 53
Objective 3.1 states that given a scenario, 54 54
you must use the appropriate statistics and sensors 55 55
to ensure network availability. 56 56
And objective 3.2 states that you must explain 57 57
the purpose of organizational documents and policies. 58 58
So let's get started with our coverage of network management 59 59
in this section of the course. 60 60
(electricity buzzing)