Quick Start Guide

Designed for Operators, by Operators
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3.5.5 Subscriber CPE Client Profiles
The process to create a QoS (Quality of Service) Client Profile on the Subscriber CPE is relatively
straightforward. The basic concept flow diagram is detailed in Figure 103.
Figure 103 Subscriber CPE Provisioning Flow Concepts
The Service Profile system using Client Profiles, creates multiple data connections that suit the need of
the Operator or Service Level Agreements. The Client Profile is the top level in a complex hierarchy that
provides a large degree of flexibility in service offerings.
Client Profiles are assigned to individual Subscriber CPE’s and within each client profile there is the ability
to throttle throughput and organize types of traffic into specific connection types. The use of ARQ/HARQ
is also contained within this system.
The Subscriber CPE Client Profile contains a Service Flow for both the uplink and the downlink directions.
The Service Flow is created from the following components:
• The direction of flow of traffic
• The specific Quality of Service (QoS) type, e.g. Best Effort (BE) or Unsolicited Grant Service (UGS)
and the bandwidth rates applied to a service flow
• ARQ and/or HARQ definitions. These are the error recovery mechanisms.
• Packet Classifiers. This will classify on a packet by packet basis depending on the defined
classification criteria. For example, the conditions under which the packet is to be transported
and/or which Service flow it is to be assigned.
A Client Profile is a set a Service Flows that correspond to a specific Service Level Agreement assigned to
a customer. Each Client Profile supports up to 16 service flows and each service flow is unidirectional. A
set of service flows includes an Uplink and a Downlink direction.
Tip: When designing Client Profiles, it is important to understand how the throughput
rating mechanism works. In the event of contradicting parameters being set, the system
will allocate to a Subscriber CPE the lower of the parameters. For example, assume a
conflict between the Client Profile setting the maximum uplink rate of 2Mbps and the
QoS Profile setting the maximum sustained rate to 1Mbps. In this example, the system
will limit the uplink rate to 1Mbps.