Huawei S12700 ET1D2MPUDC00 Main Processing Unit D.
The ET1D2MPUDC00 is the main control unit for the S12704, S12708 and S12712. It provides the control plane and management plane for the entire system and reserves a slot for clock daughter card.
Functions of the ET1D2MPUDC00
The ET1D2MPUDC00 provides the control plane and management plane for the entire system.
The control plane provides functions such as protocol processing, service processing, route calculation, forwarding control, service scheduling, traffic statistics collection, and system security.
The management plane is responsible for system status monitoring, environment monitoring, log and alarm processing, system software loading, and system upgrades.
The ET1D2MPUDC00 consists of the following functional modules:
Control module: functions as the control and management plane for the ET1D2MPUDC00 and the entire system, implementing protocol processing, route calculation, forwarding control, system management, and system security.
Local clock module: provides the working clock for the chips of the control module, and device management and monitoring module on the ET1D2MPUDC00.
Device management and monitoring module: provides functions of a controller area network (CAN) bus module to monitor the ET1D2MPUDC00 and manage the CAN bus modules of LPUs.
Power supply module: provides power supply for the ET1D2MPUDC00.
Value-added service module: provides enhanced services such as operation, administration and maintenance (OAM) and bidirectional forwarding detection (BFD).
Function
Description
Basic functions
The ET1D2MPUDC00 is the system control and management unit for the S12704, S12708 and S12712. It integrates the main control unit, clock unit, and system maintenance unit.
OAM
The ET1D2MPUDC00 supports the following OAM functions:
802.1ag: identifies, detects, and sends continuity check (CC) packets.
The system configuration data, startup files, system software package, and system logs are saved in the NAND Flash by default.
Redundancy backup
1+1 hot standby
Main control board is mandatory for switches. Each switch must be configured with one or two main control boards. When one main control board is configured for a switch, the main control board can be installed in either main control board slot of the switch. When two main control boards are configured, the two main control boards work in hot standby mode to improve reliability of the switch. The active and standby main control boards monitor the status of each other. If the active main control board fails, the standby main control board automatically becomes active to ensure uninterrupted services.
Hot swapping
Supported
Before removing the active card, perform an active/standby switchover.
Ports on the ET1D2MPUDC00
Attribute
Description
Connector type
RJ45
Working mode
Clock synchronization mode: full-duplex
Time synchronization mode: half-duplex
Frame format
1 pps + time of day (ToD)
DC level shifter (DCLS)
2 MHz
2 Mbit/s: HDB3 code
1.544 Mbit/s: B8ZS code
Standards compliance
1 pps + ToD
NMEA-0183
ToD standard
DCLS: standard of DCLS signals
2 MHz: G.703 standard
2 Mbit/s: G.703 standard
1.544 Mbit/s: G.703 standard
Cable used
Time synchronization mode: straight-through Ethernet cable (RS422 signal)
For details about cable parameters, see Clock Cable.
Specifications of the ET1D2MPUDC00
Item
Description
Physical specifications
Dimensions (H x W x D): 35.1 mm x 397.2 mm x 430.4 mm (1.38 in. x 15.64 in. x 16.95 in.)
Weight: 2.74 kg (6.04 lb)
Maximum power consumption: 46 W
ET1D2MPUDC00 FAQ
Q1: What are the core advantages of this main control unit? What guarantees does the dual redundancy design provide?
A1: The core advantages are high reliability, intelligent operation and maintenance, strong scalability, and low power consumption due to dual redundancy. Dual redundancy avoids single points of failure in the main control unit, ensuring seamless fault switching and zero interruption of core network services.
Q2: Which Huawei switch models does it support? Can it directly replace an old main control unit?
A2: It is specifically adapted to the Huawei S9700 series (S9703/S9706/S9712); it can directly replace old main control units of the same series, supports hot-swapping, and the replacement process requires no downtime and does not affect service operation.
Q3: How does its energy consumption and management capabilities compare to other main control units of the same level?
A3: Single main control unit power consumption ≤60W, saving 28% more energy than comparable products; it integrates an intelligent management platform, supports automated configuration and fault diagnosis, offering superior management capabilities and lower operation and maintenance costs.
Q4: In which scenarios with extremely high reliability requirements is it suitable? Is installation complex?
A4: Suitable for core scenarios such as data centers, carriers, finance, and government; supports hot-swapping, installation requires no professional or complicated operations, automatically adapts after being inserted into the switch slot, and is easy to configure.
Optical Modules Supported by Huawei S Series Switches
