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
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Text Part Number: OL-29291-02

©2008-2014 Cisco Systems, Inc. All rights reserved.

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
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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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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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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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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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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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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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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