SmartEdge 1200路由器硬件指南（6.1.1版）

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SmartEdge 1200路由器硬件指南是Redback Networks Inc.发布的一份技术文档，适用于SmartEdge 1200系列路由器。该指南的主要目的是为用户提供关于这款设备的详细硬件配置、安装、维护以及故障排查的全面指导，版本为6.1.1。Part Number 220-0716-03表明这是特定版本的硬件手册。该文档出自总部位于美国加利福尼亚州圣何塞的Redback Networks Inc.，公司地址为100 Headquarters Drive。访问其官方网站<http://www.redback.com>可以获得更多信息，或者通过电话+1 (408) 750-5000联系技术支持。作为一份官方文档，SmartEdge 1200 Router Hardware Guide强调了版权归属，所有内容受1998年至2007年期间的Redback Networks Inc.保护，并声明Redback及其产品如SmartEdge、AOS、NetOp、SMS和User Intelligent Networks等都是注册商标。其他提及的产品或服务名称均为各自所有者的商标或服务标记。在使用这份指南时，用户必须遵守相应的权利和限制，所有包含的陈述、规格、建议和技术信息都可能是当前的或是计划中的，这意味着信息可能会随着技术发展而更新。未经相关第三方软件开发商的书面许可，不得使用该软件来推广或支持基于此软件开发的产品。此外，手册还提醒读者，公司和产品名称的使用需遵循各自的商标或注册商标政策，以避免侵权。 SmartEdge 1200 Router Hardware Guide是一份重要的参考资料，不仅为网络管理员提供了对路由器内部结构和操作的深入理解，还涵盖了安全合规、性能优化和日常维护的关键信息，确保用户能够充分利用这款设备的功能，提升网络效率和稳定性。

System Overview

1-2 SmartEdge 1200 Router Hardware Guide

Router Versions

The SmartEdge 1200 router has two versions: standard and NEBS-compliant (NEBS Level 3). These two

versions are distinguished by the type of air ramp that is integrated into the chassis.

Unlike SmartEdge 800 routers, which require separate air ramps installed above and below the chassis for

directing hot air away from the chassis, the air ramp integrated into a SmartEdge 1200 chassis replaces the

air ramp that would otherwise be installed above the chassis.

Both versions of the SmartEdge 1200 router use the same chassis, but each version has a different integrated

air ramp. The NEBS-compliant router uses a NEBS-compliant air ramp; the standard version uses a

standard integrated air ramp. In all other respects, the two versions of the SmartEdge 1200 router are

identical.

Because the integrated air ramp cannot be removed from the chassis, the chassis itself is referred to as being

a NEBS-compliant chassis or a standard chassis. However, to complete the installation, when a SmartEdge

1200 router is installed at the bottom of a rack, a removable NEBS-compliant air ramp is required for the

NEBS-compliant version of the router; a standard removable air ramp is required for the standard version

of the SmartEdge 1200 router.

Table 1-1 lists the product codes for the two types of SmartEdge 1200 chassis. The product codes identify

the type of air ramp that is integrated into the chassis.

Note In the descriptions that follow, the term, controller card, refers to any version of the Cross-Connect

Route Processor (XCRP) Controller card (XCRP, XCRP3, XCRP4), unless otherwise noted.

The term, Gigabit Ethernet, applies to any Ethernet traffic card that supports a port speed of 1 Gbps

or greater; unless explicitly stated, the speed of any Gigabit Ethernet port is 1 Gbps.

Note In the descriptions that follow, the term SmartEdge 1200 applies to either version of the router,

unless otherwise noted. The terms SmartEdge 1200n and SmartEdge 1200s refer to the

NEBS-compliant and the standard versions of the router, respectively. Throughout this guide,

figures for the SmartEdge 1200 router illustrate the SmartEdge 1200n router, unless otherwise

noted.

NEBS-compliance standards are listed in Table 3-1 in the “Agency Compliance Information”

section on page 3-2.

Table 1-1 SmartEdge 1200 Chassis Types

Chassis

Product

Code Description

SmartEdge 1200n D9 SmartEdge 1200 chassis with NEBS-compliant air ramp.

SmartEdge 1200s D7 SmartEdge 1200 chassis with standard (non-NEBS compliant) air ramp.

System Overview

System Description 1-3

Specification Summary

Table 1-2 summarizes the general specifications for the SmartEdge 1200 router.

Traffic Card Interfaces

The SmartEdge 1200 router supports a wide variety of interfaces, such as:

• Asynchronous Transfer Mode (ATM) using SONET/SDH OC-3c/STM-1c and OC-12c/STM-4c

• 10Base-T, 100Base-TX, 1000Base-LX, 1000Base-SX, 1000Base-T, and 1000Base-ZX; and

10000Base-ER, 10000Base-LR, and 10000Base-SR

Packet Mesh Architecture

The SmartEdge 1200 router implements a grid of cross connections in its backplane that allows any

traffic card to communicate directly to any other traffic card in the chassis. The feature allows incoming

packets to be directly routed from the receiving traffic card to the traffic card that will transmit them to

the network. Each traffic card uses a combination of a Packet Mesh ASIC (PMA) and Packet Processing

ASICs (PPAs) to perform this function.

Redundancy

The architecture of the system is fully redundant for all traffic-affecting components. Redundancy features

include:

• Dual power connections, each with separate A-side and B-side power connections

• 1+1 Automatic Protection Switching (APS) protection for ATM second-generation traffic cards: 4-port

ATM OC-3c/STM-1c and Enhanced ATM OC-12c/STM-4c

Table 1-2 General Specifications

Specification Value

Synchronization • Line timing mode (various traffic cards)

• Internal timing mode

• External timing mode

Protection type • Power: independent dual-feed

• XCRP, XCRP3, XCRP4 Controllers: 1:1

• External timing: 1:1

Operations

connections

• Management workstation (ENET): 10/100Base-T

• Console terminal (Craft): RS-232

• Alarms: audible and visual: critical, major, minor, ACO

Note Protection for cards and ports depends on the release of the SmartEdge OS.

Note Neither SmartEdge 1200 chassis provides support for traffic cards that require BNC connections.

For a list of traffic cards, see Table 1-5.

Note Protection for cards and ports is configurable on a per-port basis; a mix of protected and unprotected

ports is supported. Protection features and the types of ports that support APS depend on the release

of the software.

System Components

1-4 SmartEdge 1200 Router Hardware Guide

• Redundant controller cards and redundant file systems

• Redundant external timing sources, such as building integrated timing supply (BITS) or

synchronization supply unit (SSU), with internal timing if both sources should fail

Alarms

The SmartEdge 1200 router supports three levels of alarms—critical, major, and minor:

• A critical alarm alerts the operator to a severe, service-affecting condition. It requires immediate

corrective action, regardless of time; for example, a fire.

• A major alarm alerts the operator to a service-affecting hardware or software condition, such as a

serious disruption of service, or the malfunction or failure of important circuits. It requires immediate

corrective attention and the response of a service engineer; for example, a link failure.

• A minor alarm alerts the operator to a condition that does not have a serious affect on service or on

circuits that are not essential to network operation; for example, a carrier line problem for which

transmission has been switched to another line.

System Status

The system LEDs are located on the fan tray. These LEDs include status indicators for each of the chassis

power sources (A1, A2, B1, and B2), alarms (critical, major, and minor), fan status and ACO status, and an

alarm cutoff (ACO) button. The ACO button provides one means of silencing an audible alarm; pressing

the ACO button silences an audible alarm and lights the ACO LED; pressing the button again turns off the

ACO LED and, if the alarm condition has not been corrected, sounds the alarm.

System Components

This section describes the following system components:

• SmartEdge 1200 Chassis

• Controller Cards

•Traffic Cards

SmartEdge 1200 Chassis

The SmartEdge 1200 chassis is designed for mounting in a standard 19- or 23-inch rack. Figure 1-1 shows

the standard SmartEdge 1200 chassis; Figure 1-2 shows the SmartEdge 1200n chassis. Main features of the

chassis include:

• Chassis Card Cage

• Chassis Cooling

• Chassis Power

Note Support for the ACO button depends on the release of the SmartEdge OS.

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