Huawei Quidway NE40 Instruction Manual

Quidway® NetEngine 40 Series Universal Switching Router System Architecture
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 1
Quidway® NetEngine 40 Series Universal
Switching Router System Architecture
Overview
The Quidway® NetEngine 40 universal switching router (USR) series (abbreviated as NE40)
are the fifth generation of Huawei proprietary high-end routers, which features excellent
processing capability, abundant interfaces and services. This series are high-end network
products oriented to large-scale enterprise networks, IP MANs and IP backbone networks.
NE40-8, NE40-4 and NE40-2 comprise the NE40.
Model Number of interface
board slots
Switching
capacity Forwarding performance
NE40-8 8 128 Gbps 48 Mpps
NE40-4 4 128 Gbps 24 Mpps
NE40-2 2 16 Gbps 12 Mpps
Based on the 2.5 G NP platform, the NE40 provides high-density Ethernet interfaces, leased
line interfaces and low-speed interfaces. It supports line boards and service interfaces at a rate
ranging from 64 Kbps to 2.5 Gbps.
Architecture
Based on distributed forwarding architecture, the NE40 is designed with high-performance
network processor in the telecom industry. NE40 is a universal switching router (USR). As an
enhancement of the core router, it is packed with features of the L3 switch, powerful
processing capability and L2 features. All of these add up to a product of high
price-to-performance ratio.

Quidway® NetEngine 40 Series Universal Switching Router System Architecture
Copyright ©2007 Huawei Technologies Co., Ltd. All rights reserved.
http://www.huawei.com/products/datacomm/ 2
Hardware architecture of the NE40
The NE40 is made up of Route Switching Unit (SRU) and various types of Line Processing
Units (LPUs). Key components of the NE40 include route processing system, switching fabric
system, clock system, power module and management bus. They are all designed with
redundancy, which contributes to high system reliability. The interface types of LPUs include
Ethernet, E1/CE1, E3/T3, POS, CPOS, ATM, RPR and NAT.
The entire system is divided into three logical planes of forwarding plane, control plane and
monitoring plane. Forwarding is independent from control, and routing is irrelevant to
switching.
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.