Cisco CRS-1 - Carrier Routing System Router Guida utente

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced

Router System Description

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CONTENTS

Preface vii

PREFACE

Objective vii

Audience vii

Related Cisco CRS Documentation vii

Changes to This Document viii

Obtaining Documentation and Submitting a Service Request ix

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Overview 1

CHAPTER 1

Chassis Overview 1

Overview 1

Cisco 8-Slot Chassis Components 2

Power Components 2

Routing and Switch Fabric Components 4

CRS 8-Slot System Architecture 5

Cisco CRS 8-Slot Line Card Chassis Enhanced Router Main Features 5

Chassis Slot Numbers 6

Cable Management 7

Exterior Cosmetic Components 8

Control Plane and Data Plane Overview 8

System Discovery and Inventory 8

High Availability 9

Control Plane Components 10

CRS Hardware Compatibility 12

Cisco CRS 8-Slot Line Card Chassis Enhanced Router Power Systems 15

CHAPTER 2

Cisco CRS 8-Slot Chassis Power Systems 15

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

iii

Power Systems Overview 15

Power Component Information Common to Two Types of Power System 16

Basic Chassis Power Details 16

Power System-Modular Configuration 16

Precautions and Recommendations 16

Grounding Guidelines 17

DC Power Systems 17

AC Power Systems 18

Enhanced Router Modular Configuration Power System 18

Overview-Modular Power Configuration 18

Modular Configuration Power Architecture 21

Modular Configuration DC Power 21

Modular Configuration AC Power 25

Cisco CRS 3-Phase AC Power Distribution Unit 30

Cooling System 33

CHAPTER 3

Cooling System 33

Cooling System Overview 33

Line Card Chassis Enhanced Router Airflow 34

Cooling System Operation 35

Cooling System Redundancy 36

Cisco CRS 8-Slot Line Card Chassis Enhanced Router Fan Tray 36

Switch Fabric 39

CHAPTER 4

Switch Fabric 39

Switch Fabric Overview 39

Switch Fabric Operation 40

Speed-up Function 41

S2 and S3 Buffering 41

Failure Operation 41

Switch Fabric Card Description 41

Line Cards and Physical Layer Interface Modules Overview 45

CHAPTER 5

Line Cards and Physical Layer Interface Modules Overview 45

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

Contents

Overview of Line Cards and Physical Layer Interface Modules 45

PLIM Physical Interface Module On Ingress 47

MSC Ingress Packet Engine 47

MSC To Fabric Section Queuing 48

MSC From Fabric Section 48

MSC Egress Packet Engine 48

Shaping and Queuing Function 48

PLIM Physical Interface Section On Egress 48

MSC CPU and CPU Interface 48

Line Card Physical Descriptions 49

Physical Layer Interface Modules 52

OC-768 Packet-Over-SONET (POS) PLIMs 53

OC-192 Packet-Over-SONET/Dynamic Packet Transport PLIMs 54

OC-48 Packet Over SONET/Dynamic Packet Transport PLIMs 55

10-Gigabit Ethernet XENPAK PLIM 58

8-Port 10-GE PLIM with XFP Optics Modules 59

4-Port 10-GE PLIM with XFP Optics Modules 61

1-Port 100-GE PLIM with CFP Optics Module 62

20-Port 10-GE PLIM with XFP Optics Modules 64

14-Port 10-GE PLIM with XFP Optics Modules 65

XFP Optics Power Management 67

PLIM Impedance Carrier 67

Route Processor 69

CHAPTER 6

Route Processor 69

Route Processor Overview 69

Active and Standby Arbitration 72

RP Card to Fabric Module Queuing 72

Distributed Route Processor 73

DRP Card 74

DRP PLIM 75

Limitations and Restrictions 76

Performance Route Processor 76

Performance Route Processor Front Panel 78

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

Contents

Performance Route Processor Overview 78

CRS 8-Slot Line Card Chassis Enhanced Router Specifications 83

APPENDIX A

Technical Specifications 83

Chassis Specifications 83

Modular Configuration Power Specifications 84

Environmental Specifications 85

Regulatory, Compliance, and Safety Specification 86

Product IDs 87

APPENDIX B

Product IDs 87

Chassis Product IDs 87

Optional MSC, FP, PLIM, SIP, and SPA Product IDs 89

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

Contents

Preface

This preface explains the objectives, intended audience, and organization of this Cisco CRS Carrier Routing

System 8-Slot Line Card Chassis Enhanced Router System Description , commonly referred to as the "system

description" in this document, and presents the conventions used in this manual .

•Objective, on page vii

•Audience, on page vii

•Related Cisco CRS Documentation, on page vii

•Changes to This Document, on page viii

•Obtaining Documentation and Submitting a Service Request, on page ix

Objective

This guide describes the Cisco CRS 8-Slot Line Card Chassis Enhanced router from a system point of view.

This guide focuses on the hardware elements, including descriptions of most of the major assemblies, such

as the power and cooling systems, the switch fabric, route processor, and modular services cards. It also

provides background information and the basic theory of operation for this routing system .

This guide can be read as a supplement to the Site Planning Guide, Installation Guide, and the related software

documents.

Audience

This guide is intended for service provider customers and Cisco installation partners who have substantial

background in configuring router-based internetworks and experience with routers and Cisco IOS XR software.

The system description provides a high-level introduction to the components and vocabulary used within the

Cisco CRS 8-Slot Line Card Chassis Enhanced router product.

Related Cisco CRS Documentation

For a complete listing of planning, installation, and configuration documents, see the following publications:

• Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Unpacking, Moving, and

Securing Guide

• Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Site Planning Guide

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

vii

• Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router Installation Guide

• Cisco CRS-1 Carrier Routing System to Cisco CRS-3 Carrier Routing System Migration Guide

• Cisco CRS Carrier Routing System Regulatory Compliance and Safety Information

Changes to This Document

Table 1: Changes to This Document

Change SummaryDate

Added information about the new back-to-back fabric

card CRS-8-FC400/M

April 2015

Added support for the CRS-MSC-X-L and

CRS-FP-X-L line cards.

December 2014

Added support for new 2x100GE-FLEX-40 PLIM.July 2014

Added updates to support the Cisco CRS-X, which

includes new line cards, switch fabric cards, and

PLIMs.

January 2014

Added updates to support new fan tray.September 2013

Added corrections based on unpacking, moving and

installing process changes.

May 2012

Initial release of this document.

This document introduces the Cisco CRS 8-Slot Line

Card Chassis Enhanced router. The Cisco CRS 8-Slot

Line Card Chassis Enhanced router includes the

following new features :

• The mid-plane on the Cisco CRS 16-Slot Line

Card Chassis Enhanced router is redesigned to

support 400G per slot.

• The Cisco CRS 8-Slot Line Card Chassis

Enhanced router has its own power and cooling

subsystems .

• A new power shelf with an upgraded 70 Amp

circuit breaker has been introduced for the new

Cisco CRS 8-Slot Line Card Chassis Enhanced

router .

• The Cisco CRS 8-Slot Line Card Chassis

Enhanced router removes the zone circuit breaker

and thus, eliminates power-zoning .

January 2012

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

viii

Preface

Changes to This Document

Obtaining Documentation and Submitting a Service Request

For information on obtaining documentation, using the Cisco Bug Search Tool (BST), submitting a service

request, and gathering additional information, see What's New in Cisco Product Documentation, at:

http://www.cisco.com/c/en/us/td/docs/general/whatsnew/whatsnew.html.

Subscribe to What's New in Cisco Product Documentation, which lists all new and revised Cisco technical

documentation as an RSS feed and delivers content directly to your desktop using a reader application. The

RSS feeds are a free service, and Cisco currently supports RSS Version 2.0.

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

Preface

Obtaining Documentation and Submitting a Service Request

Cisco CRS Carrier Routing System 8-Slot Line Card Chassis Enhanced Router System Description

Preface

Obtaining Documentation and Submitting a Service Request

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