Huawei Quidway NE40E Release Note page 2

Quidway® NetEngine 80E Core Router System Architecture
Boards of the NE80E include MPU, SFU, service boards and many Line Processing Units (LPU).
Key components such as MPU, SFU, fan and power are of redundancy design, which helps
improve the reliability of the whole system. The interface types of LPUs include FE, GE, 10GE,
POS, CPOS, ATM and RPR.
The logical architecture of the NE80E falls into data plane, control management plane and
monitoring plane. Functions of the three planes are described in the figure below.
The data plane completes high-speed data packet processing and internal non-blocking
switching, including packet encapsulation/decapsulation, IPv4/MPLS forwarding processing,
QoS and packet scheduling, internal high speed switching and various statistics.
The control and management plane completes system control and management functions. It is
the nerve center of the entire system. The control and management unit completes functions
such as protocol and signaling processing, system status configuration and maintenance
management as well as system status reporting and control.
The monitoring plane independently completes system environment monitoring, including
voltage detection, system power on/off control, temperature detection and fan control to
ensure the safe and stable operation of the system. It isolates the fault in time when a unit is
faulty, thus guaranteeing the normal operation of the other system components.
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Logical architecture of NE80E
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