1 NE80 Core Router Overview
Quidway NetEngine80
Configuration Guide - Basic Configurations
1-4
Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
Issue 04 (2009-12-20)
Figure 1-1
Software architecture of the NE80-8
RPS
Switch Fabric
Monitoring module
Switch Fabric
Monitoring module
FSU
EFU
Hi
gh
way
FSU
EFU
Hi
gh
way
FSU
EFU
Highway
Hi
gh
way
Hi
ghway
H
ighway
Hi
gh
way
Hi
gh
way
Highway
RPS
Switch Fabric
Monitoring module
Switch Fabric
Monitoring module
FSU
EFU
Hi
gh
way
LPU1
FSU
EFU
Hi
gh
way
LPU2
FSU
EFU
LPU8
Highway
Hi
gh
way
Hi
ghway
H
ighway
Hi
gh
way
Hi
gh
way
Highway
As the control and management unit of the system, the RPS runs on the active and standby
MPUs and performs the following tasks:
z
Route control
The RPS calculates and maintains the routes. In addition, it generates the Forward
Information Base (FIB) table and delivers it to each LPU for IP forwarding.
z
Label control
The RPS distributes labels, sets up and maintains the Label Switch Paths (LSPs). In addition,
it generates the FIB table and delivers it to each LPU for MPLS forwarding.
z
Traffic control
The RPS defines the traffic classification rules, configures the traffic parameters, configures
the queue resources and flow control parameters for Diff-Serv QoS.
z
Maintenance and management
The RPS maintains the devices, manages the network and devices, monitors the whole system,
diagnoses faults, and collects statistics for services.
Running on the CPU of the LPU, the FSU manages the service interfaces (configuring and
monitoring them), forwards data, controls the links, and negotiates the link parameters. In
addition, the FSU can maintain and manage local devices for LPUs and provide some system
monitoring and diagnosis services.
In addition to fast forwarding of IP packets, the EFU can provide such QoS functions as
traffic classifying, traffic measuring, traffic policing, traffic shaping, traffic scheduling, and
congestion avoiding and controlling. It can implement Diff-Serv, firewall, and Class of
Service (CoS) features according to different configuration requirements.
The Switch Fabric monitoring module monitors the internal switching network in the NE80
Series USR.
Implemented on the Huawei integrated network management platform, the NMS maintains
and controls devices uniformly.