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Network as a Service (NaaS) PlayBook
1. Capacity Planning Introduction
Capacity Planning (CP) is a method that contributes to
over-watch the network assets of the NaaS operator, predicting the network
conduct based on its maximum vital metrics and schedule moves to feature
capacity whilst vital. A well-prepared plan will minimize the danger of network
congestions, bottlenecks, and outages. Additionally, it’ll decorate the
community utilization by way of lowering the idle assets because of over
dimensioning.
The forecast evaluation of a community is pretty complex,
the perfect way to overcome this complexity is dividing the network into
segments such as radio get admission to community (RAN), shipping and mobile
core. Even similarly, a better segmentation while performing CP is to subdivide
those regions by using their equipment and the capacity signs or ability
controlled objects (CMOs).
The Capacity Planning module offers practise on the overall
duties required in a mobile network to cope with its inherent boom and
development. These sports cross from the identification of the CMOs to the
definition of a concrete plan for wearing out the desired ability augments
This module provides hints to pick out the maximum relevant
CMOs from RAN, shipping and cell middle. For each CMO, a list of network
metrics is derived based totally on its impact at the CMO and the network.
These network metrics show the utilization of the resources and can constitute
a bottleneck while sources are fully utilized. To keep away from ability
bottlenecks, an increase within the ability need to be deliberate and applied
before this occurs.
Since RAN, transport and mobile core range from one to some
other, specific CMOs, thresholds, metrics and planning ought to be uniquely
defined. For this cause, this module is split into 4 sections: (1)
Fundamentals, CP in (2) RAN, (three) shipping and (four) mobile core.
After going through this module, the NaaS operator could be
able to perceive the CMOs in their network, perform a forecast analysis of the
relevant metrics and plan the augments before the metrics go their respective
thresholds.
1.1 Module Objectives
This module will permit NaaS operators to estimate the
network behavior and plan ability augments for this reason earlier than
capacity outages arise. The unique goals of this module are to:
1.2 Module Framework
The Module Background in Figure 1 describes the shape,
interactions, and dependencies amongst one-of-a-kind NaaS operator areas.
Strategic Plan & Scope and High-stage Network Architecture
drive the strategic decisions to impending phases. Once the community is in
operations, the Field Maintenance and Post-Launch Engineering sports are
required to make sure proper functioning of the network.
The Capacity Planning module is included within the
Post-Launch Engineering circulate and has an instantaneous relation with the
Field Maintenance and the Operations & Maintenance Streams. The Module Context
in Figure 1 describes the shape, interactions and dependencies amongst
exceptional NaaS operator areas.
Figure 1 – Post-Launch Engineering Framework
Figure 2 provides the CP useful view, wherein the principle
practical components are exhibited.
Figure 2 – CP Functional View
2 CP Fundamentals
This section provides a top level view of the baseline
principles of the CP system and its relevance for NaaS operators. Furthermore,
an examination of every of the CP technique’ steps is provided to guide NaaS
operators through their implementation.
2.1 CP Imperative
CP is the technique of planning a network primarily based on
utilization, bandwidth, and different community capability constraints.
Furthermore, it’s a sort of management system that assists community directors
in planning for community infrastructure in keeping with present day and future
operations.
CP entails calculating the capacity required to guide the
anticipated community boom and finding ways of making that ability to be had
thru the implementation of capability augments. Furthermore, CP ensures that
the community capacity is utilized in the maximum fee-powerful and well timed
manner.
The dating among CP and Performance Management is predicated
on their particular scope. Performance Management specializes in optimizing the
prevailing community elements to improve the overall performance. In
assessment, CP determines the future network requirements using the modern-day
performance as a baseline.
The major troubles addressed by the CP procedure are
examined as follows.
Improve Operational Efficiency
Figure 3 illustrates the CP idea for NaaS operators. It
keeps a CP technique for each of the network segments (i.E., RAN, Tx, center)
as each of them has particular necessities; but, interrelationships a number of
the special strategies are present. Each of these tactics is described in a
separate section of this module.
Figure 3 – CP Concept inside the NaaS surroundings.
A deep exam of the fundamental factors of CP may be observed
inside the Primer on Capacity Planning Fundamentals file.
2.2 CP Baseline Concepts
The purpose of this segment is to give the key concepts
associated with CP so as to be used along the relaxation of this module.
A CMO is a community resource this is potential touchy and
is liable to present ability outages. The CP process maintains music of 3
crucial measurements for every CMO:
A potential augment is a ramification on any of the CMOs
that augments its general potential. There are specifically approaches to reinforce the CMOs:
Capacity Augment Cycle Time
The potential augment cycle time is the overall quantity of
time required to put into effect a specific capability increase. Among the
activities that is probably achieved to put in force a potential increase are:
2.3 CP Framework
As previously discussed, CP has an instantaneous dating with
the NaaS operator community, which include all of the community segments (RAN,
Tx, Core). Figure 4 illustrates the CP framework.
As proven in Figure four, there are two levels inside the CP
system:
The framework illustrated in Figure 4 is implemented for
every community segment (i.E., RAN, Tx, center). To facilitate knowledge of the
specifics, the rest of this section is focused on the popular technique, so
that you can be used as the baseline for the specific processes on every
network phase in Sections three to 5.
The following subsections describe the principle
interactions between the CP manner and the NaaS Operator Network.
Initial Network Information Collection
The Capacity Framework Setup section requires certain
preliminary statistics concerning the network fame. Table 1 gives the input
records and their respective candidate sources. Furthermore, the effect of the
inputs at the CP manner is tested.
Table 1 – Initial Network Information Analysis
Monitoring and Testing sports consciousness on measuring and
reporting all of the usage-related aspects. The NMS performs the potential and
performance tracking activities. It’s recommended that automatic mechanisms
carry out all tracking activities.
The NMS makes use of inputs from the CP process to configure
the Events & Alarms in accordance with safety margins for the community
metrics. For in addition info on the tracking techniques and a way to implement
them, please consult with the Network Monitoring Architecture module.
Capacity Augment Implementation
Once the ability augments required within the community to
avoid ability outages are diagnosed, they want to be applied. Any capability
augment to be applied within the network ought to be evaluated in phrases of
its impact on modern-day provider operation. Moreover, the implementation of
the capability augments need to recollect its related cycle time to
successfully schedule it.