Zte ZXR10 8900E series, Описание продукта

Страница: 92 / 132

ZXR10 8900E series Core Switch Product Description
82 © 2013ZTE CORPORATION. All rights reserved. ZTE Confidential Proprietary
4.3.1.1 Main Control Module
The main control module consists of a main processor and some external functional
chips, providing various operation interfaces such as serial interface and Ethernet
interface by which the system can process various applications. The main control module
includes the following functional units and fulfills the following tasks:

NMS unit: run system network management protocol, such as SNMP;

Protocol processing unit: run network and route protocols, such as OSPF, RIP and
BGP-4; maintain global routing and forwarding table; responsible for consistence of
multiple processor nodes;

Monitoring unit: provide operation and management interfaces for line cards;

Internal communication unit: provide high-speed signaling channel between boards,
so that the main control board can control the management CPU of other boards
efficiently and correctly through the internal communication module, and transmit
routing information to different boards via this channel.
The main control module has the following features:

Have high-performance CPU with powerful processing capability to run L2 and L3
protocol as well as network management and monitoring programs;

Provide GE outband communication channel that can be connected with the
management interface to provide system management and program download and
debugging function;

Provide an RS232 serial port as board debugging and management interface;

Provide temperature detection: each main control board has a temperature
detection component connected to CPU subcard, which can provide temperature
detection and report to background network management system;

Provide system log management function: all logs are stored in system FLASH;

CPU interface is mounted with clock chip to provide correct clock for the system;

Provide active/standby switching, active/standby status signal indication, line card
reset signal and line card online detection functions;

Provide fault level: warning fault and switching fault;

Provide route data synchronization channel between the active and standby
elements.