Appearance and
Composition
The Huawei MA5600 shelf has 16 slots. The fan tray is
located at the top of the shelf. The shelf is installed in the cabinet through
the mounting brackets. This topic provides the appearance and composition of
the MA5600 shelf.
Figure 1 shows the
appearance and composition of the MA5600 shelf.
Function:
The MA5600 shelf provides different functions
through different service boards. This topic provides information about the
functions of the MA5600 shelf.
The MA5600 shelf is 10 U high. It provides 16
slots to house various boards. The functions of the shelf are as follows:
·
Accessing the VDSL2, ADSL2+, and SHDSL services.
·
Converting the accessed services to IP packets
and transmitting them upstream to the IP network.
Working Principles:
The MA5600 shelf consists of Ethernet switching
module, control module, service interface module, "MPLS module,
"network interface module, and ISU module. These modules support
the service access and uplink.
The MA5600 provides ADSL2+, VDSL2, SHDSL services, and IP upstream
services through various modules. The MA5600 shelf
mainly consists of the following modules:
·
Ethernet switching module
·
Main control module
·
Service interface module
·
Multiprotocol label switching (MPLS) module
·
Network interface module
·
ISU module
Ethernet Switching Module:
The
Ethernet switching module is the core of the entire system. It helps in data
conversion and protocol handling for the SCU board and service boards.
Control Module:
The
control module consists of the SCU board, subboard and related software. This
module supports the following:
·
Control the system and switch services.
·
Provide the environment
monitoring port for connecting the environment monitoring module.
Service Interface Module:
The
service interface module consists of the service boards and the related
software. It provides various service ports to support:
·
ADSL2+
·
SHDSL
·
VDSL2
·
ATM(STM-1/IMA/E3)
Network Interface Module:
This
module provides the following network ports for connecting to the upper layer
network device:
·
FE optical (electrical) port
·
GE optical (electrical) port
MPLS Module:
This
module consists of the M2GA subboard and the related software.
This
module implements MPLS encapsulation for some private line services and
forwards them to the IP metropolitan area network (MAN). In this way, the MPLS
module offers private line services in the IP MAN.
ISU Module:
This
module consists of the ISU board and the related software. It supports the
following:
·
Authentication based on PPPoE, VLAN binding, or
VLAN + web (forced portal and embedded portal)
·
Accounting based on traffic or duration
·
Providing GE/FE uplink ports
