Table 12-2 Reference service bandwidth of each service for each user
Service
Type
Upstrea
m
Bandwi
dth
Downstream
Bandwidth
Bandwidth Description
Internet
access
service
Determi
ned
based on
the
service
tariff
package.
Determined based on
the service tariff
package.
Available bandwidth or Internet access
service = Committed bandwidth of the
service tariff package - VoIP bandwidth -
IPTV bandwidth
VoIP
service
200 kbit/
s
200 kbit/s The upstream bandwidth and the downstream
bandwidth of VoIP service are symmetrical.
The actual bandwidth is related to the coding
format. This bandwidth is calculated for two
POTS ports.
IPTV
service
(standar
d
definitio
n
program
)
/ 2.5 Mbit/s per
channel
IPTV service mainly occupies the
downstream bandwidth. The actual
bandwidth depends on the coding format, the
picture in picture information, 10%
bandwidth burst traffic, and the number of
programs that can be concurrently watched
by one user (in the case of multiple STBs).
The upstream bandwidth is mainly used for
transmitting IGMP packets, which requires
little bandwidth. Therefore, the bandwidth
occupied by IGMP packets can be neglected.
IPTV
service
(high
definitio
n
program
)
/ 9.7 Mbit/s per
channel
Note:
l The rate restriction on the BRAS or SR is recommended. OLTs and ONUs do not restrict
the rate for service streams.
l If BRAS does not support rate restriction, OLTs can restrict the rate for service streams
through the traffic profile.
l Different service packets on the ONU are distinguished by different VLAN IDs. The service
packets are mapped to GEM ports based on VLAN IDs so that different service packets
are transmitted to different GEM ports. Each GEM port (each service) corresponds to a T-
CONT or all GEM ports share a T-CONT.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
12 FTTO Configuration(SOHO and SME)
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1084
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