Troubleshooting Cisco Nexus Switches and NX-OS [Paperback]

Foreword xxvi

Introduction xxvii

Part I Introduction to Troubleshooting Nexus Switches

Chapter 1 Introduction to Nexus Operating System (NX-OS) 1

Nexus Platforms Overview 2

Nexus 2000 Series 2

Nexus 3000 Series 3

Nexus 5000 Series 4

Nexus 6000 Series 4

Nexus 7000 Series 5

Nexus 9000 Series 6

NX-OS Architecture 8

The Kernel 9

System Manager (sysmgr) 9

Messages and Transactional Services 11

Persistent Storage Services 13

Feature Manager 14

NX-OS Line Card Microcode 17

File Systems 19

Understanding NX-OS Software Releases and Packaging 25

Software Maintenance Upgrades 27

Licensing 28

NX-OS High-Availability Infrastructure 28

Supervisor Redundancy 29

ISSU 34

NX-OS Virtualization Features 35

Virtual Device Contexts 35

Virtual Routing and Forwarding 37

Virtual Port Channel 37

Management and Operations Capabilities 39

NX-OS Advanced CLI 39

Technical Support Files 44

Accounting Log 45

Feature Event-History 46

Debug Options: Log File and Filters 47

Configuration Checkpoint and Rollback 48

Consistency Checkers 49

Feature Scheduler, EEM, and Python 50

Bash Shell 51

Summary 51

References 51

Chapter 2