Cisco Nexus 9000 Series Configuration Manual

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

First Published: 2015-02-01

Last Modified: 2017-06-16

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Preface

CHAPTER 1

CHAPTER 2

Preface xi

Audience xi

Document Conventions xi

Related Documentation for Cisco Nexus 9000 Series Switches xii

Documentation Feedback xii

Obtaining Documentation and Submitting a Service Request xiii

New and Changed Information 1

Overview 3

Software Image 3

Software Compatibility 3

Spine/Leaf Topology 3

Modular Software Design 4

Serviceability 4

Switched Port Analyzer 4

Ethanalyzer 4

Smart Call Home 5

Online Diagnostics 5

Embedded Event Manager 5

Manageability 5

Simple Network Management Protocol 5

Configuration Verification and Rollback 5

Role-Based Access Control 6

Cisco NX-OS Device Configuration Methods 6

Programmability 6

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iii

Contents

Python API 6

Tcl 6

Cisco NX-API 7

Bash Shell 7

Broadcom Shell 7

Traffic Routing, Forwarding, and Management 7

Ethernet Switching 7

IP Routing 8

IP Services 8

IP Multicast 8

Quality of Service 9

Network Security Features 9

Licensing 10

CHAPTER 3

CHAPTER 4

Supported Standards 10

Using the Cisco NX-OS Setup Utility 15

About the Cisco NX-OS Setup Utility 15

Prerequisites for the Setup Utility 17

Setting Up Your Cisco NX-OS Device 17

Additional References for the Setup Utility 21

Related Documents for the Setup Utility 21

Using PowerOn Auto Provisioning 23

About PowerOn Auto Provisioning 23

Network Requirements for POAP 24

POAP Configuration Script 24

Using the POAP Script and POAP Script Options 25

Setting up the DHCP Server without DNS for POAP 27

Downloading and Using User Data, Agents, and Scripts as part of POAP 28

POAP Process 28

Power-Up Phase 31

DHCP Discovery Phase 31

POAP Dynamic Breakout 33

Script Execution Phase 33

Post-Installation Reload Phase 33

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Contents

Guidelines and Limitations for POAP 33

Setting Up the Network Environment to Use POAP 34

Configuring a Switch Using POAP 34

Creating md5 Files 35

Verifying the Device Configuration 37

Troubleshooting for POAP 37

Managing the POAP Personality 37

POAP Personality 37

Backing Up the POAP Personality 38

Configuring the POAP Personality 38

Restoring the POAP Personality 40

POAP Personality Sample Script 40

CHAPTER 5

Understanding the Command-Line Interface 43

About the CLI Prompt 44

Command Modes 44

EXEC Command Mode 44

Global Configuration Command Mode 45

Interface Configuration Command Mode 45

Subinterface Configuration Command Mode 46

Saving and Restoring a Command Mode 46

Exiting a Configuration Command Mode 47

Command Mode Summary 47

Special Characters 48

Keystroke Shortcuts 49

Abbreviating Commands 52

Completing a Partial Command Name 52

Identifying Your Location in the Command Hierarchy 53

Using the no Form of a Command 53

Configuring CLI Variables 54

About CLI Variables 54

Configuring CLI Session-Only Variables 55

Configuring Persistent CLI Variables 55

Command Aliases 56

About Command Aliases 56

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Contents

Defining Command Aliases 57

Configuring Command Aliases for a User Session 57

Command Scripts 58

Running a Command Script 58

Echoing Information to the Terminal 58

Delaying Command Action 59

Context-Sensitive Help 60

Understanding Regular Expressions 62

Special Characters 62

Multiple-Character Patterns 62

Anchoring 63

Searching and Filtering show Command Output 63

Filtering and Searching Keywords 64

diff Utility 65

grep and egrep Utilities 66

less Utility 67

Mini AWK Utility 67

sed Utility 67

sort Utility 67

Searching and Filtering from the --More-- Prompt 68

Using the Command History 69

Recalling a Command 69

Controlling CLI History Recall 70

Configuring the CLI Edit Mode 70

Displaying the Command History 70

Enabling or Disabling the CLI Confirmation Prompts 71

Setting CLI Display Colors 71

Sending Commands to Modules 72

Sending Command Output in Email 73

BIOS Loader Prompt 74

Examples Using the CLI 74

Using the System-Defined Timestamp Variable 74

Using CLI Session Variables 75

Defining Command Aliases 75

Running a Command Script 76

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Contents

Sending Command Output in Email 76

Additional References for the CLI 77

Preface

This preface includes the following sections:

Audience, page xi

•

Document Conventions, page xi

•

Related Documentation for Cisco Nexus 9000 Series Switches, page xii

•

Documentation Feedback, page xii

•

Obtaining Documentation and Submitting a Service Request, page xiii

•

Audience

This publication is for network administrators who install, configure, and maintain Cisco Nexus switches.

Document Conventions

Command descriptions use the following conventions:

DescriptionConvention

bold

Italic

[x | y]

{x | y}

Bold text indicates the commands and keywords that you enter literally as shown.

Italic text indicates arguments for which the user supplies the values.

Square brackets enclose an optional element (keyword or argument).[x]

Square brackets enclosing keywords or arguments separated by a vertical bar indicate an optional choice.

Braces enclosing keywords or arguments separated by a vertical bar indicate a required choice.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Documentation Feedback

To provide technical feedback on this document, or to report an error or omission, please send your comments to nexus9k-docfeedback@cisco.com. We appreciate your feedback.

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Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Preface

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.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

xiii

Obtaining Documentation and Submitting a Service Request

Preface

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Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

New and Changed Information

This chapter provides release-specific information for each new and changed feature in the Cisco Nexus 9000 Series NX-OS Fundamentals Guide, Release 7.x.

New and Changed Information, page 1

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New and Changed Information

This table summarizes the new and changed features for the Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x and tells you where they are documented.

Table 1: New and Changed Features for Cisco NX-OS Release 7.x

CHAPTER 1

POAP

Support for Configuration Archive and Archive Log

Command-line interface

DescriptionFeature

the md5 checksum files.

Introduced a single POAP script and the ability to start a service on boot across all Cisco Nexus 9000 Series switches and the Cisco Nexus 3164Q, 31128PQ, 3232C, and 3264Q switches.

configuration archive and archive log.

variables to contain hyphens and underscores.

in Release

7.0(3)I6(1)Added procedure to re-create

7.0(3)I5(1)Added support for

7.0(3)I4(1)Enabled Cisco NX-OS CLI

Where DocumentedChanged

Creating md5 Files, on page 35

Using PowerOn Auto Provisioning, on page 23

Configuration Archive and Configuration Log, on page 126

Configuring CLI Session-Only Variables, on page 55 and Configuring Persistent CLI Variables, on page 55

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

New and Changed Information

POAP

copy command

DescriptionFeature

personality and dynamic breakout features.

file system.

in Release

7.0(3)I4(1)Introduced the POAP

Where DocumentedChanged

Using PowerOn Auto Provisioning, on page 23

Copying Files, on page 1037.0(3)I1(1)Added support for the HTTPS

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Overview

This chapter contains the following sections:

Software Image, page 3

•

Software Compatibility, page 3

•

Serviceability, page 4

•

Manageability, page 5

•

Programmability, page 6

•

Traffic Routing, Forwarding, and Management, page 7

•

Quality of Service, page 9

•

Network Security Features, page 9

•

Licensing, page 10

•

Supported Standards, page 10

•

CHAPTER 2

Software Image

The Cisco NX-OS software consists of one NXOS software image (for example, n9000-dk9.6.1.2.I1.1.bin). This image runs on all Cisco Nexus 9000 Series switches.

Software Compatibility

The Cisco NX-OS software interoperates with Cisco products that run any variant of the Cisco IOS software. The Cisco NX-OS software also interoperates with any networking operating system that conforms to the IEEE and RFC compliance standards.

Spine/Leaf Topology

The Cisco Nexus 9000 Series switches support a two-tier spine/leaf topology.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Modular Software Design

This figure shows an example of a spine/leaf topology with four leaf switches (Cisco Nexus 9396 or 93128) connecting into two spine switches (Cisco Nexus 9508) and two 40G Ethernet uplinks from each leaf to each spine.

Figure 1: Spine/Leaf Topology

Overview

Modular Software Design

The Cisco NX-OS software supports distributed multithreaded processing on symmetric multiprocessors (SMPs), multi-core CPUs, and distributed data module processors. The Cisco NX-OS software offloads computationally intensive tasks, such as hardware table programming, to dedicated processors distributed across the data modules. The modular processes are created on demand, each in a separate protected memory space. Processes are started and system resources are allocated only when you enable a feature. A real-time preemptive scheduler helps to ensure the timely processing of critical functions.

Serviceability

The Cisco NX-OS software has serviceability functions that allow the device to respond to network trends and events. These features help you with network planning and improving response times.

Switched Port Analyzer

The Switched Port Analyzer (SPAN) feature allows you to analyze all traffic between ports (called the SPAN source ports) by nonintrusively directing the SPAN session traffic to a SPAN destination port that has an external analyzer attached to it. For more information about SPAN, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Ethanalyzer

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Ethanalyzer is a Cisco NX-OS protocol analyzer tool based on the Wireshark (formerly Ethereal) open source code. Ethanalyzer is a command-line version of Wireshark for capturing and decoding packets. You can use Ethanalyzer to troubleshoot your network and analyze the control-plane traffic. For more information about Ethanalyzer, see the Cisco Nexus 9000 Series NX-OS Troubleshooting Guide.

Overview

Smart Call Home

The Call Home feature continuously monitors hardware and software components to provide e-mail-based notification of critical system events. A versatile range of message formats is available for optimal compatibility with pager services, standard e-mail, and XML-based automated parsing applications. It offers alert grouping capabilities and customizable destination profiles. You can use this feature, for example, to directly page a network support engineer, send an e-mail message to a network operations center (NOC), and employ Cisco AutoNotify services to directly generate a case with the Cisco Technical Assistance Center (TAC). For more information about Smart Call Home, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Online Diagnostics

Cisco generic online diagnostics (GOLD) verify that hardware and internal data paths are operating as designed. Boot-time diagnostics, continuous monitoring, and on-demand and scheduled tests are part of the Cisco GOLD feature set. GOLD allows rapid fault isolation and continuous system monitoring. For information about configuring GOLD, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Smart Call Home

Embedded Event Manager

Cisco Embedded Event Manager (EEM) is a device and system management feature that helps you to customize behavior based on network events as they happen. For information about configuring EEM, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Manageability

This section describes the manageability features for the Cisco Nexus 9000 Series switches.

Simple Network Management Protocol

The Cisco NX-OS software is compliant with Simple Network Management Protocol (SNMP) version 1, version 2, and version 3. A large number of MIBs is supported. For more information about SNMP, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Configuration Verification and Rollback

The Cisco NX-OS software allows you to verify the consistency of a configuration and the availability of necessary hardware resources prior to committing the configuration. You can preconfigure a device and apply the verified configuration at a later time. Configurations also include checkpoints that allow you to roll back to a known good configuration as needed. For more information about rollbacks, see the Cisco Nexus 9000 Series NX-OS System Management Configuration Guide.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Role-Based Access Control

With role-based access control (RBAC), you can limit access to device operations by assigning roles to users. You can customize access and restrict it to the users who require it. For more information about RBAC, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide.

Cisco NX-OS Device Configuration Methods

You can use these methods to configure Cisco NX-OS devices:

The CLI from a Secure Shell (SSH) session, a Telnet session, or the console port. SSH provides a secure

•

connection to the device. The CLI configuration guides are organized by feature. For more information, see the Cisco NX-OS configuration guides. For more information about SSH and Telnet, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide.

The XML management interface, which is a programmatic method based on the NETCONF protocol

•

that complements the CLI. For more information, see the Cisco NX-OS XML Interface User Guide.

Overview

The Cisco Data Center Network Management (DCNM) client, which runs on your local PC and uses

•

web services on the Cisco DCNM server. The Cisco DCNM server configures the device over the XML management interface. For more information about the Cisco DCNM client, see the Cisco DCNM Fundamentals Guide.

Programmability

This section describes the programmability features for the Cisco Nexus 9000 Series switches.

Python API

Python is an easy-to-learn, powerful programming language. It has efficient high-level data structures and a simple but effective approach to object-oriented programming. Python's elegant syntax and dynamic typing, together with its interpreted nature, make it an ideal language for scripting and rapid application development in many areas on most platforms. The Python interpreter and the extensive standard library are freely available in source or binary form for all major platforms from the Python website: http://www.python.org/. The Python scripting capability gives programmatic access to the CLI to perform various tasks and Power-On Auto Provisioning (POAP) or Embedded Event Manager (EEM) actions. For more information about the Python API and Python scripting, see the Cisco Nexus 9000 Series NX-OS Programmability Guide.

Tcl

Tool Command Language (Tcl) is a scripting language. With Tcl, you gain more flexibility in your use of the CLI commands on the device. You can use Tcl to extract certain values in the output of a show command, perform switch configurations, run Cisco NX-OS commands in a loop, or define EEM policies in a script.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Overview

Cisco NX-API

The Cisco NX-API provides web-based programmatic access to the Cisco Nexus 9000 Series switches. This support is delivered through the NX-API open-source web server. The Cisco NX-API exposes the complete configuration and management capabilities of the command-line interface (CLI) through web-based APIs. You can configure the switch to publish the output of the API calls in either XML or JSON format. For more information about the Cisco NX-API, see the Cisco Nexus 9000 Series NX-OS Programmability Guide.

Note

NX-API performs authentication through a programmable authentication module (PAM) on the switch. Use cookies to reduce the number of PAM authentications and thus reduce the load on PAM.

Bash Shell

The Cisco Nexus 9000 Series switches support direct Linux shell access. With Linux shell support, you can access the Linux system on the switch in order to use Linux commands and manage the underlying system. For more information about Bash shell support, see the Cisco Nexus 9000 Series NX-OS Programmability Guide.

Broadcom Shell

The Cisco Nexus 9000 Series switch front-panel and fabric module line cards contain several Broadcom ASICs. You can use the CLI to access the command-line shell (bcm shell) for these ASICs. The benefit of using this method to access the bcm shell is that you can use Cisco NX-OS command extensions such as pipe include and redirect output to file to manage the output. In addition, the activity is recorded in the system accounting log for audit purposes, unlike commands entered directly from the bcm shell, which are not recorded in the accounting log. For more information about Broadcom shell support, see the Cisco Nexus 9000 Series NX-OS Programmability Guide.

Caution

Use Broadcom shell commands with caution and only under the direct supervision or request of Cisco Support personnel.

Traffic Routing, Forwarding, and Management

This section describes the traffic routing, forwarding, and management features supported by the Cisco NX-OS software.

Ethernet Switching

The Cisco NX-OS software supports high-density, high-performance Ethernet systems and provides the following Ethernet switching features:

IEEE 802.1D-2004 Rapid and Multiple Spanning Tree Protocols (802.1w and 802.1s)

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IP Routing

Overview

IEEE 802.1Q VLANs and trunks

•

IEEE 802.3ad link aggregation

•

Unidirectional Link Detection (UDLD) in aggressive and standard modes

•

For more information, see the Cisco Nexus 9000 Series NX-OS Interfaces Configuration Guide and the Cisco Nexus 9000 Series NX-OS Layer 2 Switching Configuration Guide.

The Cisco NX-OS software supports IP version 4 (IPv4) and IP version 6 (IPv6) and the following routing protocols:

Open Shortest Path First (OSPF) Protocol Versions 2 (IPv4) and 3 (IPv6)

•

Intermediate System-to-Intermediate System (IS-IS) Protocol (IPv4 and IPv6)

•

Border Gateway Protocol (BGP) (IPv4 and IPv6)

•

IP Services

Enhanced Interior Gateway Routing Protocol (EIGRP) (IPv4 only)

•

Routing Information Protocol Version 2 (RIPv2) (IPv4 only)

•

The Cisco NX-OS software implementations of these protocols are fully compliant with the latest standards and include 4-byte autonomous system numbers (ASNs) and incremental shortest path first (SPF). All unicast protocols support Non-Stop Forwarding Graceful Restart (NSF-GR). All protocols support all interface types, including Ethernet interfaces, VLAN interfaces, subinterfaces, port channels, and loopback interfaces.

For more information, see the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide.

The following IP services are available in the Cisco NX-OS software:

Virtual routing and forwarding (VRF)

•

Dynamic Host Configuration Protocol (DHCP) helper

•

Hot Standby Router Protocol (HSRP)

•

Enhanced object tracking

•

Policy-based routing (PBR)

•

Unicast graceful restart for all protocols in IPv4 unicast graceful restart for OPSFv3 in IPv6

•

IP Multicast

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

For more information, see the Cisco Nexus 9000 Series NX-OS Unicast Routing Configuration Guide.

The Cisco NX-OS software includes the following multicast protocols and functions:

Protocol Independent Multicast (PIM) Version 2 (PIMv2)

•

Overview

Quality of Service

PIM sparse mode (Any-Source Multicast [ASM] for IPv4)

•

Anycast rendezvous point (Anycast-RP)

•

Multicast NSF for IPv4

•

RP-Discovery using bootstrap router (BSR) (Auto-RP and static)

•

Internet Group Management Protocol (IGMP) Versions 1, 2, and 3 router role

•

IGMPv2 host mode

•

IGMP snooping

•

Multicast Source Discovery Protocol (MSDP) (for IPv4)

•

The Cisco NX-OS software does not support PIM dense mode.Note

For more information, see the Cisco Nexus 9000 Series NX-OS Multicast Routing Configuration Guide.

Quality of Service

The Cisco NX-OS software supports quality of service (QoS) functions for classification, marking, queuing, policing, and scheduling. Modular QoS CLI (MQC) supports all QoS features. You can use MQC to provide uniform configurations across various Cisco platforms. For more information, see the Cisco Nexus 9000 Series NX-OS Quality of Service Configuration Guide.

Network Security Features

The Cisco NX-OS software includes the following security features:

Control Plane Policing (CoPP)

•

Message-digest algorithm 5 (MD5) routing protocol authentication

•

Authentication, authorization, and accounting (AAA)

•

RADIUS and TACACS+

•

SSH Protocol Version 2

•

SNMPv3

•

Policies based on MAC and IPv4 addresses supported by named ACLs (port-based ACLs [PACLs],

•

VLAN-based ACLs [VACLs], and router-based ACLs [RACLs])

Traffic storm control (unicast, multicast, and broadcast)

•

For more information, see the Cisco Nexus 9000 Series NX-OS Security Configuration Guide.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

Licensing

The Cisco NX-OS software licensing feature allows you to access premium features on the device after you install the appropriate license for that feature. Any feature not included in a license package is bundled with the Cisco NX-OS software and is provided to you at no extra charge.

You must purchase and install a license for each device.

For detailed information about Cisco NX-OS software licensing, see the Cisco NX-OS Licensing Guide.

For information about troubleshooting licensing issues, see the Cisco Nexus 9000 Series NX-OS Troubleshooting Guide.

Supported Standards

This table lists the IEEE compliance standards.

Table 2: IEEE Compliance Standards

Overview

DescriptionStandard

MAC Bridges802.1D

Class of Service Tagging for Ethernet frames802.1p

VLAN Tagging802.1Q

Multiple Spanning Tree Protocol802.1s

Rapid Spanning Tree Protocol802.1w

1000Base-T (10/100/1000 Ethernet over copper)802.3ab

Link aggregation with LACP802.3ad

10-Gigabit Ethernet802.3ae

This table lists the RFC compliance standards. For information on each RFC, see www.ietf.org.

Table 3: RFC Compliance Standards

DescriptionStandard

BGP

RFC 1997 BGP Communities Attribute

RFC 2385

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Protection of BGP Sessions via the TCP MD5 Signature Option

Overview

Supported Standards

DescriptionStandard

BGP Route flap dampingRFC 2439

RFC 2519

RFC 2858

RFC 3065

RFC 3392

RFC 4273

RFC 4486

RFC 4724

A Framework for Inter-Domain Route Aggregation

Multiprotocol Extensions for BGP-4

Autonomous System Confederations for BGP

Capabilities Advertisement with BGP-4

BGP version 4RFC 4271

BGP4 MIB - Definitions of Managed Objects for BGP-4

BGP Route reflectionRFC 4456

Subcodes for BGP cease notification message

Graceful Restart Mechanism for BGP

RFC 4893

ietf-draft

IP Multicast

RFC 2236

RFC 3376

BGP Support for Four-octet AS Number Space

Bestpath transition avoidance (draft-ietf-idr-avoid-transition-05.txt)

Peer table objects (draft-ietf-idr-bgp4-mib-15.txt)

Dynamic Capability (draft-ietf-idr-dynamic-cap-03.txt)

Internet Group Management Protocol, Version 2

Internet Group Management Protocol, Version 3

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Supported Standards

Overview

DescriptionStandard

RFC 3446

RFC 3569

RFC 3618

RFC 4601

RFC 4610

RFC 6187

ietf-draft

Anycast Rendezvous Point (RP) mechanism using Protocol Independent Multicast (PIM) and Multicast Source Discovery Protocol (MSDP)

An Overview of Source-Specific Multicast (SSM)

Multicast Source Discovery Protocol (MSDP)

ASM - Sparse Mode (PIM-SM): Protocol Specification (Revised)

Source-Specific Multicast for IPRFC 4607

Anycast-RP Using Protocol Independent Multicast (PIM)

X.509v3 Certificates for Secure Shell Authentication

Mtrace server functionality, to process mtrace-requests, draft-ietf-idmr-traceroute-ipm-07.txt

IP Services

RFC 768 UDP

TFTPRFC 783

IPRFC 791

ICMPRFC 792

TCPRFC 793

ARPRFC 826

TelnetRFC 854

FTPRFC 959

Proxy ARPRFC 1027

NTP v3RFC 1305

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Overview

Supported Standards

DescriptionStandard

CIDRRFC 1519

BootP relayRFC 1542

DNS clientRFC 1591

IPv4 routersRFC 1812

DHCP HelperRFC 2131

VRRPRFC 2338

IS-IS

RFC 1142 (OSI 10589)

RFC 1195

RFC 2763

RFC 2966

RFC 3277

RFC 3373

OSI 10589 Intermediate system to intermediate system intra-domain routing exchange protocol

Use of OSI IS-IS for routing in TCP/IP and dual environment.

Dynamic Hostname Exchange Mechanism for IS-IS

Domain-wide Prefix Distribution with Two-Level IS-IS

IS-IS Mesh GroupsRFC 2973

IS-IS Transient Blackhole Avoidance

Three-Way Handshake for IS-IS Point-to-Point Adjacencies

IS-IS Cryptographic AuthenticationRFC 3567

Restart Signaling for IS-ISRFC 3847

ietf-draft

OSPF

Internet Draft Point-to-point operation over LAN in link-state routing protocols (draft-ietf-isis-igp-p2p-over-lan-06.txt)

OSPF Version 2RFC 2328

OSPF Opaque LSA OptionRFC 2370

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Supported Standards

Overview

DescriptionStandard

OSPF for IPv6 (OSPF version 3)RFC 2740

RFC 3101

RFC 3509

Per-Hop Behavior (PHB)

RIP

OSPF Not-So-Stubby-Area (NSSA) Option

OSPF Stub Router AdvertisementRFC 3137

Alternative Implementations of OSPF Area Border Routers

Graceful OSPF RestartRFC 3623

OSPF Version 2 MIBRFC 4750

Assured Forwarding PHB GroupRFC 2597

An Expedited Forwarding PHBRFC 3246

RIPv2 MIB extensionRFC 1724

RIPv2 MD5 AuthenticationRFC 2082

SNMP

RFC 2579

RFC 2863

RFC 3413

RFC 3417

RIP Version 2RFC 2453

Textual Conventions for SMIv2

The Interfaces Group MIB

Simple Network Management Protocol (SNMP) Applications

Transport Mappings for the Simple Network Management Protocol (SNMP)

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Using the Cisco NX-OS Setup Utility

This chapter contains the following sections:

About the Cisco NX-OS Setup Utility, page 15

•

Prerequisites for the Setup Utility, page 17

•

Setting Up Your Cisco NX-OS Device, page 17

•

Additional References for the Setup Utility, page 21

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About the Cisco NX-OS Setup Utility

The Cisco NX-OS setup utility is an interactive command-line interface (CLI) mode that guides you through a basic (also called a startup) configuration of the system. The setup utility allows you to configure only enough connectivity for system management.

The setup utility allows you to build an initial configuration file using the System Configuration Dialog. The setup starts automatically when a device has no configuration file in NVRAM. The dialog guides you through initial configuration. After the file is created, you can use the CLI to perform additional configuration.

You can press Ctrl-C at any prompt to skip the remaining configuration options and proceed with what you have configured up to that point, except for the administrator password. If you want to skip answers to any questions, press Enter. If a default answer is not available (for example, the device hostname), the device uses what was previously configured and skips to the next question.

CHAPTER 3

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

About the Cisco NX-OS Setup Utility

This figure shows how to enter and exit the setup script.

Figure 2: Setup Script Flow

Using the Cisco NX-OS Setup Utility

You use the setup utility mainly for configuring the system initially, when no configuration is present. However, you can use the setup utility at any time for basic device configuration. The setup utility keeps the configured values when you skip steps in the script. For example, if you have already configured the mgmt0 interface, the setup utility does not change that configuration if you skip that step. However, if there is a default value for the step, the setup utility changes to the configuration using that default, not the configured value. Be sure to carefully check the configuration changes before you save the configuration.

Note

Be sure to configure the IPv4 route, the default network IPv4 address, and the default gateway IPv4 address to enable SNMP access. If you enable IPv4 routing, the device uses the IPv4 route and the default network IPv4 address. If IPv4 routing is disabled, the device uses the default gateway IPv4 address.

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

+ 120 hidden pages

Cisco Nexus 9000 Series Configuration Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Cisco Nexus 9000 Series NX-OS Fundamentals Configuration Guide, Release 7.x

CONTENTS

Preface

Audience

Document Conventions

Related Documentation for Cisco Nexus 9000 Series Switches

Documentation Feedback

Obtaining Documentation and Submitting a Service Request

New and Changed Information

New and Changed Information

Overview

Software Image

Software Compatibility

Spine/Leaf Topology

Modular Software Design

Serviceability

Switched Port Analyzer

Ethanalyzer

Smart Call Home

Online Diagnostics

Embedded Event Manager

Manageability

Simple Network Management Protocol

Configuration Verification and Rollback

Role-Based Access Control

Cisco NX-OS Device Configuration Methods

Programmability

Python API

Cisco NX-API

Bash Shell

Broadcom Shell

Traffic Routing, Forwarding, and Management

Ethernet Switching

IP Routing

IP Services

IP Multicast

Quality of Service

Network Security Features

Licensing

Supported Standards

Using the Cisco NX-OS Setup Utility

About the Cisco NX-OS Setup Utility