Table 15-3 QoS planning principles
Service Packet
Directi
on
QoS Planning
CM D-CMTS OLT
Cable
modem
(CM)
control
service,
HSI
service, or
VoIP
service
Upstrea
m
1. A CM
classifies
flows for
service
packets.
2. A CM
schedules
queues
according to
the priorities
of DOCSIS
service
flows.
l Coaxial media
converter (CMC)
module
QoS parameters are
defined in a CM
configuration file.
Using the QoS
parameter settings,
a D-CMTS limits
service rates or
schedules queues
by priorities. In
addition, an OLT
supports the
configuration of a
QoS profile, which
defines QoS
parameters for
various CM
services. If a QoS
parameter is
defined both in a
CM configuration
file and a QoS
profile, the
configuration in the
CM configuration
file preferentially
takes effect.
1. A D-CMTS
limits CM
service rates
based on service
priority.
2. A D-CMTS
limits the rate of
a CM service
flow group.
3. A D-CMTS
schedules
queues for
service flows.
l GPON module
An OLT maps the
priority of a DOCSIS
service flow to the
802.1p field in the
Ethernet header and
uses the 802.1p priority
to schedule queues.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
15 OptiCable D-CMTS Configuration (MA5633 Working as
a Remote Extended Frame)
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1528
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