Cisco MDS 9000 Series User manual

Cisco MDS 9000 Family NX-OS Fundamentals Configuration Guide

First Published: 2013-04-09

Last Modified: 2013-04-09

Americas Headquarters

Cisco Systems, Inc.

170 West Tasman Drive

San Jose, CA 95134-1706

USA

http://www.cisco.com

Tel: 408 526-4000

800 553-NETS (6387)

Fax: 408 527-0883

Text Part Number: OL-29291-02

CONTENTS

Preface

Preface xiii

Audience xiii

Document Conventions xiii

Related Documentation xv

Obtaining Documentation and Submitting a Service Request xvi

CHAPTER 1

New and Changed Information 1

CHAPTER 2

Overview 5

Software Compatibility 5

Modular Software Design 5

Serviceability 5

Switched Port Analyzer 6

Call Home 6

Online Diagnostics 6

Embedded Event Manager 6

Manageability 6

Simple Network Management Protocol 6

Role-Based Access Control 6

Cisco NX-OS Software Configuration 7

Tools for Software Configuration 7

CLI 7

NTP 7

Licensing 9

Quality of Service 9

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CHAPTER 3

Using the Cisco NX-OS Setup Utility 11

Information About the Cisco NX-OS Setup Utility 11

Prerequisites for the Setup Utility 13

Initial Setup Routine 13

Configuring Out-of-Band Management 13

Configuring In-Band Management 19

Where to Go Next 25

CHAPTER 4

Using PowerOn Auto Provisioning 27

Using Power On Auto Provisioning 27

About Power On Auto Provisioning 27

POAP Configuration Script 28

Guidelines and Limitations for POAP Configuration 28

Network Infrastructure Requirements for POAP 29

Setting Up the Network Environment to use POAP 30

Using USB 30

Using a DHCP Server 31

The POAP Process 32

The Power-Up Phase 33

The USB Discovery Phase 34

The DHCP Discovery Phase 34

Script Execution Phase 35

Post-Installation Reload Phase 36

Configuring a Switch Using POAP 36

Verifying the Device Configuration 36

CHAPTER 5

Understanding the Command-Line Interface 37

Information About the CLI Prompt 38

Command Modes 38

EXEC Command Mode 38

Global Configuration Command Mode 38

Interface Configuration Command Mode 39

Subinterface Configuration Command Mode 40

Saving and Restoring a Command Mode 40

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Contents

Command Mode Summary 41

Special Characters 41

Keystroke Shortcuts 42

Abbreviating Commands 44

Completing a Partial Command Name 45

Identifying Your Location in the Command Hierarchy 45

Using the no Form of a Command 46

Configuring CLI Variables 47

About CLI Variables 47

Configuring CLI Session-Only Variables 47

Configuring Persistent CLI Variables 48

Command Aliases 49

About Command Aliases 49

Defining Command Aliases 50

Configuring Command Aliases for a User Session 51

Command Scripts 51

Running a Command Script 51

Echoing Information to the Terminal 52

Delaying Command Action 53

Context-Sensitive Help 53

Understanding Regular Expressions 55

Special Characters 55

Multiple-Character Patterns 55

Anchoring 56

Searching and Filtering show Command Output 56

Filtering and Searching Keywords 57

diff Utility 58

grep and egrep Utilities 59

less Utility 59

sed Utility 60

sort Utility 60

Redirecting show Command Output Using sscp 61

Searching and Filtering from the --More-- Prompt 61

Using the Command History 62

Recalling a Command 62

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Contents

Configuring the CLI Edit Mode 63

Controlling CLI History Recall 63

Displaying the Command History 63

Enabling or Disabling the CLI Confirmation Prompts 64

Setting CLI Display Colors 64

Sending Commands to Modules 65

BIOS Loader Prompt 66

Examples Using the CLI 66

Defining Command Aliases 66

Using CLI Session Variables 66

Using the System-Defined Timestamp Variable 67

Running a Command Script 67

Using the sscp Utility to Redirect show Command Output 68

CHAPTER 6

Configuring Terminal Settings and Sessions 69

Information About Terminal Settings and Sessions 69

Terminal Session Settings 69

Console Port 70

COM1 Port 70

Virtual Terminals 71

Modem Support 71

Configuring the Console Port 71

Configuring the COM1 Port 73

Configuring Virtual Terminals 75

Configuring the Inactive Session Timeout 75

Configuring the Session Limit 76

Configuring Modem Connections 77

Enabling a Modem Connection 77

Downloading the Default Initialization String 79

Configuring and Downloading a User-Specified Initialization String 80

Initializing a Modem for a Powered-Up Cisco NX-OS Device 81

Clearing Terminal Sessions 82

Displaying Terminal and Session Information 82

Default Settings for Terminal Display and Session Parameters 83

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Contents

CHAPTER 7

Basic Device Management 85

Information About Basic Device Management 85

Device Hostname 85

Interface 86

Default Gateway 86

Message-of-the-Day Banner 87

Device Clock 87

Time Zone and Summer Time (Daylight Saving Time) 87

User Sessions 87

Telnet Server Connection 87

Changing the Device Hostname 87

Configuring the Management Interface 88

Configuirng the Default Gateway 90

Configuring the MOTD Banner 90

Configuring the Time Zone 91

Configuring Summer Time (Daylight Saving Time) 92

Manually Setting the Device Clock 94

Managing Users 94

Displaying Information about the User Sessions 94

Sending a Message to Users 95

Enabling or Disabling a Telnet Server Connection 95

Verifying the Device Configuration 96

Default Settings for Basic Device Parameters 97

CHAPTER 8

Using the Device File Systems, Directories, and Files 99

Information About Device File Systems, Directories, Files, and External Storage Devices 99

File Systems 99

Directories 100

Files 100

Working with External Storage Devices 101

Formatting an External Flash Device 101

Mounting or Unmounting a USB Drive 101

External Storage Device Support Matrix 101

Working with Directories 103

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Contents

Identifying the Current Directory 103

Changing the Current Directory 103

Creating a Directory 103

Displaying Directory Contents 103

Deleting a Directory 104

Accessing the Directories on a Standby Supervisor Module 104

Working with Files 104

Moving a File 104

Copying a File 105

Deleting a File 105

Displaying a File's Contents 106

Displaying a File's Checksums 106

Compressing and Uncompressing a File 106

Displaying the Last Lines in a File 107

Redirecting show Command Output to a File 107

Finding Files 107

Working with Archive Files 108

Creating an Archive File 108

Appending Files to an Archive File 108

Extracting Files from an Archive File 109

Displaying the Filenames in an Archive File 109

Examples of Using a File System 110

Accessing Directories on a Standby Supervisor Module 110

Performing ISSU or ISSD Using a USB Drive 110

CHAPTER 9

Working with Configuration Files 111

Information About Configuration Files 111

Types of Configuration Files 111

Managing Configuration Files 112

Saving the Running Configuration to the Startup Configuration 112

Copying a Configuration File to a Remote Server 112

Downloading the Running Configuration From a Remote Server 113

Downloading the Startup Configuration From a Remote Server 114

Copying Configuration Files to an External Flash Memory Device 116

Copying the Running Configuration from an External Flash Memory Device 116

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Contents

Copying the Startup Configuration from an External Flash Memory Device 117

Copying Configuration Files to an Internal File System 118

Rolling Back to a Previous Configuration 119

Removing the Configuration for a Missing Module 120

Erasing a Configuration 121

Verifying the Device Configuration 122

Examples of Working with Configuration Files 123

Copying Configuration Files 123

Backing Up Configuration Files 123

Rolling Back to a Previous Configuration 123

CHAPTER 10

Configuring CDP 125

Information About CDP 125

CDP Overview 125

High Availability for CDP 126

Configuring CDP 126

Enabling or Disabling CDP Globally 126

Enabling or Disabling CDP on an Interface 127

Configuring Optional CDP Parameters 128

Verifying the CDP Configuration 128

Clearing CDP Counters and Tables 129

CDP Example Configuration 129

Default Settings for CDP 129

CHAPTER 11

Configuring NTP 131

Information About NTP 131

NTP 131

NTP Configuration Distribution Using CFS 133

High Availability for NTP 133

Prerequisites for NTP 133

Guidelines and Limitations for NTP 133

Configuring NTP 133

Enabling or Disabling the NTP Protocol 134

Configuring an NTP Server and Peer 134

Displaying and Clearing NTP Statistics 135

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Contents

Distributing the NTP Configuration Using CFS 136

Enabling NTP Configuration Distribution 136

Committing NTP Configuration Changes 137

Discarding NTP Configuration Changes 138

Releasing Fabric Session Lock on the NTP Configuration 139

Verifying NTP Configuration 139

NTP Example Configuration 139

Default Settings for NTP 140

CHAPTER 12

Managing System Hardware 141

Displaying Switch Hardware Inventory 141

Displaying the Switch Serial Number 143

Displaying Power Usage Information 144

Power Supply Modes 145

Configuration Guidelines for Power Supplies 145

Configuring the Power Supply Mode 148

About Crossbar Management 149

Operational Considerations when Removing Crossbars 150

Gracefully Shutting Down a Crossbar 151

Provideing Backward Compatibility for Generation 1 Modules in Cisco MDS 9513

Directors 151

About Module Temperature Monitoring 152

Displaying Module Temperatures 153

About Fan Modules 153

About Clock Modules 155

Displaying Environment Information 156

Default Settings 157

CHAPTER 13

Managing Modules 159

About Modules 159

Supervisor Modules 160

Switching Modules 162

Services Modules 162

Maintaining Supervisor Modules 162

Replacing Supervisor Modules 162

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