Huawei Quidway NE80 Manuale di istruzioni

Quidway® NetEngine 80 Core Router System Architecture

Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.

http://www.huawei.com/products/datacomm/ 1

Quidway® NetEngine 80 Core Router

System Architecture

Overview

The Quidway®NetEngine 80 core router (abbreviated to NE80) is a 5th generation high-end router

product launched by Huawei in orientation to carrier-class operation networks and backbone

networks. It is mainly applied in the key positions of IP backbone networks, IP MANs and various

large-scale IP networks. The NE80 provides multiple network solutions, and can also work with

other Huawei products to provide integrated solutions.

The NE80 has the switching capacity of 128 Gbps, the backplane capacity of 256 Gbps, and the

packet forwarding rate of 96 Mpps. The NE80 has 20 slots: two for MPUs (1:1 backup), two for

NETBs (1:1 backup) and 16 service slots, providing line cards and service interfaces ranging from

64 Kbps to 2.5 Gbps.

Architecture

The NE80 is based on a distributed forwarding architecture and adopts the passive backplane

design. All Line Processing Units (LPUs) are configured with independent CPU, NP and Physical

Interface Card (PIC), greatly improving the processing performance and scalability of the whole

system.

Power

supply system

Active/Standby

LPU

LPU

LPU

LPU

LPU

LPU

LPU

LPU

Active/Standby

NET

MPU Fan system

Hardware architecture of NE80

Quidway® NetEngine 80 Core Router System Architecture

Copyright ©2007 Huawei Technologies Co., Ltd. All Rights Reserved.

http://www.huawei.com/products/datacomm/ 2

The NE80 provides the following major boards: Main Processing Unit (MPU), Switching Network

Board (NETB), Clock Board (CLK) and various LPUs. The key parts such as MPU, NETB/CLK, fan

and power supply adopt redundancy design, improving the reliability of the whole system. The

interface types of the LPU include Ethernet interfaces, E1, POS, CPOS, ATM, RPR, and NAT.

The whole system is divided up into three logical planes: forwarding plane, control plan and

monitoring plane. The NE80 realizes forwarding and control separation as well as routing and

switching separation.

zThe 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.

zThe 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.

zThe 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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