Cisco Nexus 9000 Series Switches Configuration Guide

Cisco Nexus 9000 Series NX-OS System Management Configuration

Guide, Release 9.3(x)

First Published: 2019-07-20

Last Modified: 2022-02-08

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CONTENTS

Preface xxiii

PREFACE

Audience xxiii

Document Conventions xxiii

Related Documentation for Cisco Nexus 9000 Series Switches xxiv

Documentation Feedback xxiv

Communications, Services, and Additional Information xxiv

New and Changed Information 1

CHAPTER 1

New and Changed Information 1

Platform Support for System Management Features 7

CHAPTER 2

Platform Support for System Management Features 7

Overview 15

CHAPTER 3

Licensing Requirements 15

Software Image 15

Cisco NX-OS Device Configuration Methods 16

Configuring with CLI or XML Management Interface 16

Configuring with Cisco DCNM 17

Network Time Protocol 17

Cisco Discovery Protocol 17

Session Manager 17

Scheduler 17

SNMP 18

Online Diagnostics 18

Onboard Failure Logging 18

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SPAN 18

ERSPAN 18

LLDP 18

MPLS Stripping 19

sFlow 19

SMUs 19

Virtual Device Contexts 19

Troubleshooting Features 19

Configuring Switch Profiles 21

CHAPTER 4

About Switch Profiles 21

Switch Profile Configuration Modes 22

Configuration Synchronization Mode 22

Switch Profile Mode 22

Switch Profile Import Mode 22

Configuration Validation 22

Mutual Exclusion Checks 22

Merge Checks 23

Software Upgrades and Downgrades with Switch Profiles 23

Guidelines and Limitations for Switch Profiles 23

Configuring Switch Profiles 25

Adding or Modifying Switch Profile Commands 27

Importing a Switch Profile 28

Importing Configurations in a vPC Topology 30

Isolating a Peer Switch 30

Deleting a Switch Profile 31

Manually Correcting Mutex and Merge Failures 32

Verifying the Switch Profile Configuration 32

Configuration Examples for Switch Profiles 32

Creating a Switch Profile on a Local and a Peer Switch 32

Verifying the Synchronization Status 35

Showing the Running Configuration 36

Displaying the Switch Profile Synchronization Between the Local and the Peer Switch 37

Displaying Verify and Commit on the Local and the Peer Switch 37

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Contents

Displaying the Successful and Unsuccessful Synchronization Between the Local and the Peer

Switch 39

Displaying the Switch Profile Buffer 39

Importing Configurations 40

Migrating to Cisco NX-OS Release 7.0(3)I2(1) or Higher in a Fabric Extender Straight-Through

Topology 42

Replacing a Cisco Nexus 9000 Series Switch 42

Synchronizing Configurations 43

Synchronizing Configurations After a Cisco Nexus 9000 Series Switch Reboots 43

Synchronizing Configurations When the mgmt0 Interface Connectivity Is Lost 44

Reverting an Inadvertent Port Mode Change of Layer 2 to Layer 3 in Global Configuration

Mode 44

Configuring Frequency Synchronization 45

CHAPTER 5

About Frequency Synchronization 45

Hybrid SyncE-PTP with External PRC Source 46

Timing Sources 46

Timing Inputs 46

Timing Outputs 47

Timing Source Selection Points 47

Licensing Requirements for Synchronous Ethernet (SyncE) 48

Guidelines and Limitations for Frequency Synchronization 48

Configuring Frequency Synchronization 49

Enabling Frequency Synchronization 49

Configuring Frequency Synchronization on an Interface 50

Verifying the Frequency Synchronization Configuration 52

Configuring PTP 57

CHAPTER 6

About PTP 57

PTP Offload 58

PTP Device Types 58

Clocks 58

PTP Process 59

ITU-T Telecom Profile for PTP 61

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Contents

Telecom Profile G.8275.1 61

High Availability for PTP 62

Guidelines and Limitations for PTP 62

Default Settings for PTP 65

Configuring PTP 65

Configuring PTP Globally 65

Configuring PTP on an Interface 69

Configuring PTP in Unicast Mode 74

Configuring Unicast Mode 74

Assigning Master Role 74

Assigning Slave Role 76

Configuring Unicast Source Address 77

Configuring PTP Telecom Profile 78

Configuring Global PTP Telecom Profile 78

Configuring PTP Telecom Profile on an Interface 80

PTP Profile Defaults 83

Configuring PTP Notifications 85

PTP Mixed Mode 87

Configuring a PTP Interface to Stay in a Master State 87

Timestamp Tagging 88

Configuring Timestamp Tagging 89

Configuring the TTAG Marker Packets and Time Interval 89

Verifying the PTP Configuration 91

Verifying the PTP Telecom Profile Configuration 92

Configuration Examples for PTP 96

Additional References 98

Cisco Nexus 9000 Series Switches Configuration Guide

Cisco Nexus 9000 Series Switches Configuration Guide

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