Huawei Quidway NE40E, Quidway NE5000E, Quidway NE80, Quidway NE80E, Quidway NetEngine 80E Release Note

Quidway® NetEngine 80E Core Router System Architecture

Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.

http://www.huawei.com/products/datacomm/

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Quidway® NetEngine 80E Core Router

System Architecture

Overview

The Quidway® NetEngine 80E core routers (“NE80E” hereinafter) are an enhanced series of
Huawei NE80 routers and can provide 10G wire-speed interfaces. It is located at the core of the IP
backbone network, IP MAN and other large-scale IP networks. It can be networked with core
routers of the NE5000E and NE40E series to form an IP network solution of integral architecture
and clear hierarchy.

The NE80E now provides 640Gbps switching capacity, 320Gbps interface capacity and 400Mpps
packet forwarding rate. In the near future, these figures may increase greatly. It provides 22 slots in
total, two of which for Main Processing Unit (MPU) (working in the 1:1 backup mode), four for
Switching Fabric Unit (SFU) (working in the 1+3 backup mode) and the left for service boards.

Architecture

Based on distributed hardware forwarding and non-blocking switching technology, the NE80E
features carrier-class reliability, line rate forwarding, well proved QoS mechanism, rich variety of
service processing capabilities and excellent scalability. Therefore it can meet the raising demand
of data and Internet services for equipment on the backbone network.

Monitoring bus

Power system
(redundancy)

MPU

(active/standby)

Management bus

Fan system

(redundancy)

LPU

Switching matrix

(1+3 backup)

LPU

LPU

LPU

NE80E hardware architecture

Quidway® NetEngine 80E Core Router System Architecture

Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.

http://www.huawei.com/products/datacomm/

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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.

Logical architecture of NE80E

z 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.

z 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.

z 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.