Loopb
ack
Mode
Function Networking Configuration
Remote
loopba
ck on
the
ONU
Loops back
signals to the
user side on the
ONU. This
loopback checks
whether the link
between the
ONU and user
terminal is
normal.
E1 line
tester
OLTONU
Remote loopback
E1
huawei(config)#interface
tdm
huawei(config-if-tdm-)
#loopback 0 remote
huawei(config-if-tdm-)
#undo loopback 0
14.4.3 Ethernet Base Station Access Service (in QinQ VLAN Mode)
ONUs are connected to IP base stations through FE/GE Ethernet ports and OLTs are
interconnected with MAN equipment in QinQ VLAN mode to achieve access of base station
services.
14.4.3.1 Service Requirement and Application Scenario
Service Requirement
l ONUs are connected to 3G/LTE base stations and GPON is used for carrying the mobile
access network in a unified manner to meet mobile carriers' requirements for a high
bandwidth and high-density coverage of base stations.
l A simple, mature solution is used for service configuration to ensure high service quality
as well as high transmission efficiency.
Application Scenario
As shown in Figure 14-16, ONUs receive the ETH service data from 3G base stations through
FE/GE ports, encapsulate the ETH packets into GEM frames, and then send them to the OLT
through the GPON upstream ports. The OLT restores the ETH signals and configures QinQ
VLANs for the signals to enable the data of base stations to be transparently transmitted to the
remote PTN over the public network. Then the remote PTN device restores the ETH signals.
Applicable ONUs: MA5612, MA5628, MA5616
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Commissioning and Configuration Guide
14 FTTM Configuration (Base Station Access)
Issue 01 (2014-04-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
1432
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