This IBM® Redbooks® publication describes important networking concepts and industry standards that are used to support high availability on IBM System z®. Some of the networking standards described here are VLANs, VLAN trunking, link aggregation, virtual switches, VNICs, and load-balancing.
We examine the various aspects of network setups and introduce the main Linux on System z networking commands and configuration files. We describe the management of network interface parameters, assignment of addresses to a network interface, and usage of the ifconfig command to configure network interfaces.
We provide an overview of connectivity options available on the System z platform. We also describe high availability concepts and building a high availability solution using IBM Tivoli® System Automation. We also provide the implementation steps necessary to build a redundant network connections set up between an IBM z/VM® system and the external network switches using two Open Systems Adapter-Express 3 (OSA-Express 3) adapters with 10 Gb Ethernet ports.
We describe the tests performed in our lab environment. The objectives of these tests were to gather information about performance and failover from the perspective of a real scenario, where the concepts of described in this book were applied.
This book is focused on information that is practical and useful for readers with experience in network analysis and engineering networks, System z and Linux systems administrators, especially for readers that administer networks in their day-to-day activities.
For additional reading: A Technote is availalble that explains changes to using channel bonding interfaces introduced with SLES 11 SP 2.
It can be found at:
Table of Contents
- Front cover
Chapter 1. Networking concepts overview
- 1.1 Virtual local area network
- 1.2 VLAN trunking
- 1.3 Link aggregation
- 1.4 Virtual switch
- 1.5 Virtual network interface controller
- 1.6 Ethernet autonegotiation
- 1.7 Maximum transmission unit
- 1.8 Spanning Tree Protocol
- 1.9 Load balancing
Chapter 2. Linux on System z networking overview
- 2.1 Basic concepts
- 2.2 Overview of virtualization and networking
- 2.3 Important Linux network files
- 2.4 Network problem determination
Chapter 3. Linux networking tools
- 3.1 Network setup
- 3.2 Monitoring, diagnosing, and measuring the performance of the network
- Chapter 4. Using channel bonding interfaces
Chapter 5. High availability with Linux on System z
- 5.1 Basic concepts
- 5.2 Definitions of high availability
- 5.3 High availability configurations
- 5.4 Introduction to Tivoli System Automation
- 5.5 Tivoli System Automation implementation for IBM WebSphere MQ
Chapter 6. Building a practical redundant solution
- 6.1 Lab environment configuration
- 6.2 IBM J48E switch configuration
- 6.3 z/VM virtual switch definition
- 6.4 Tuning for maximum performance
- Chapter 7. Performance and failover tests
- Related publications
- Back cover
- Title: Advanced Networking Concepts Applied Using Linux on IBM System z
- Release date: February 2012
- Publisher(s): IBM Redbooks
- ISBN: 0738436534