Cover

Table of Content

  1. Overview of NX-OS
  2. NX-OS User Modes Overview
  3. Management Interfaces Overview
  4. Connectivity Management Processor (CMP) Overview
  5. Managing System Files Overview
  6. Configuration Files: Configuration Rollback in NX-OS
  7. Virtual Device Contexts (VDCs) in the Nexus 7000 NX-OS
  8. Troubleshooting Overview
  9. Layer 2 Support and Configurations in NX-OS
  10. Layer 2 Overview in NX-OS

 

This eBook is based on Cisco Nexus Operating System that has been collected from different sources and people. For more information about this ebook. Kindly write to mamtadevi775304@gmail.com. I will happy to help you.

Copyright 2023 by Mamta Devi

This eBook is a guide and serves as a first guide. This book has been written on the advice of many experts and sources who have good command over Network Security, Routing & Switching. They are listed at the end of this book.
All images used in this book are taken from the LAB which is created by experts. All rights reserved, including the right to reproduce this book or portions thereof in any form whatsoever. For any query reach out to the author through email.

Overview of NX-OS

Cisco has developed a cutting-edge data center-class operating system, prioritizing maximum scalability and application availability. The foundation of the NX-OS data center-class operating system revolves around modularity, resiliency, and serviceability. Drawing from the proven Cisco Storage Area Network Operating System (SAN-OS) Software, NX-OS ensures continuous availability, setting the standard for mission-critical data center environments. Cisco NX-OS boasts a self-healing and highly modular design, promoting operational excellence and enhancing service levels with exceptional operational flexibility.

Key Advantages of Cisco NX-OS:

  1. Unified data center operating system

  2. Robust feature set with various Cisco innovations

  3. Flexibility and scalability

  4. Modularity

  5. Virtualization

  6. Resiliency

  7. IPv4 and IPv6 IP routing and multicast features

  8. Comprehensive security, availability, serviceability, and management features

Key Features and Benefits of NX-OS:

  1. Virtual Device Contexts (VDC): Segments Cisco Nexus 7000 Series switches into virtual devices, offering benefits like fault isolation, administration plane separation, data traffic separation, and enhanced security.

  2. Virtual Port Channels (vPC): Allows a server or switch to use an EtherChannel across two upstream switches without an STP-blocked port, enabling the utilization of all available uplink bandwidth.

  3. Continuous System Operation: NX-OS facilitates maintenance, upgrades, and software certification without service interruptions through its modular design and features such as In-Service Software Upgrade (ISSU) and dynamic process restart capability.

  4. Security: Ensures data confidentiality and integrity with features like IEEE 802.1AE link-layer cryptography and 128-bit Advanced Encryption Standard (AES). Additional security features include access control lists (ACL) and port-security.

  5. Licensing:

    • Base Services: Default license covering Layer 2 protocols.

    • Enterprise Services Package: Includes Layer 3 protocols.

    • Advanced Services Package: Offers Virtual Device Contexts (VDC), Cisco Trustsec (CTS), and Overlay Transport Virtualization (OTV).

    • Transport Services License: Provides OTV and MPLS.

NX-OS Supported Platforms:

  • Nexus 7000

  • Nexus 5000

  • Nexus 2000

  • Nexus 1000V

  • Cisco MDS 9000

  • Cisco Unified Computing System (UCS)

  • Nexus 4000

Comparison with Cisco IOS:

  • Differences in CLI structure and initial log-in process.

  • NX-OS uses a feature-based license model.

  • 120-day license grace period for testing.

  • Features can be enabled and disabled dynamically.

  • Interfaces labeled as Ethernet without speed designations.

  • Support for Virtual Device Contexts (VDC).

  • Default presence of two VRF instances.

  • Secure Shell version 2 (SSHv2) enabled by default.

    • Impressum

    Verlag: BookRix GmbH & Co. KG

    Texte: Mamta Devi
    Bildmaterialien: Mamta Devi
    Cover: Rishabh Shukla
    Lektorat: Shiva Jain
    Korrektorat: Kamta Dev
    Übersetzung: Dev Yadav
    Satz: Mamta Devi
    Tag der Veröffentlichung: 13.11.2023
    ISBN: 978-3-7554-6091-6

    Alle Rechte vorbehalten

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