Networking with z/OS and Cisco routers : an interoperability guide / [Adolfo Rodriguez ... et al.].

Format:

Book

Author/Creator:

Rodriguez, Adolfo Francisco.

Series:

IBM redbooks.

Redbooks

Language:

English

Subjects (All):

Computer networks.

Routers (Computer networks).

Business enterprises--Computer networks.

Business enterprises.

z/OS.

Physical Description:

1 online resource (376 p.)

Edition:

1st ed.

Place of Publication:

Research Triangle Park, NC : IBM, 2002.

Language Note:

English

Contents:

Front cover

Contents

Notices

Trademarks

Preface

The team that wrote this redbook

Special notice

Comments welcome

Part 1 z/OS and Cisco interoperation

Chapter 1. Introduction

1.1 Physical connectivity

1.1.1 Channel attachment

1.1.2 Shared networks

1.2 Routing in your network

1.2.1 Static routing

1.2.2 Dynamic routing

1.3 Quality of Service

1.3.1 Integrated Services

1.3.2 Differentiated Services

1.4 High availability and load distribution

1.4.1 DNS mapping

1.4.2 Connection dispatching

1.4.3 Virtual IP Addressing (VIPA)

1.4.4 Round-robin DNS

1.4.5 Connection Optimization (DNS/WLM)

1.4.6 Network Dispatcher

1.4.7 Sysplex Distributor

1.4.8 MultiNode Load Balancing (MNLB)

1.4.9 Sysplex Distributor/MNLB joint solution

Chapter 2. Connecting z/OS systems and Cisco routers

2.1 Channel-attached Cisco routers

2.1.1 CIP and xCPA

2.1.2 Channel protocols

2.2 LAN-attached Cisco routers

2.2.1 OSA-2 adapters

2.2.2 OSA-Express adapters

2.3 Summary

Chapter 3. Routing overview

3.1 Static routing

3.2 Dynamic routing

3.3 RIP

3.3.1 RIP Version 1

3.3.2 RIP Version 2

3.4 OSPF

3.4.1 OSPF terminology

3.4.2 Neighbor communication

3.4.3 OSPF virtual links and transit areas

3.4.4 OSPF route redistribution

3.4.5 OSPF stub areas

3.4.6 OSPF route summarization

3.5 EIGRP

3.5.1 Features of EIGRP

3.5.2 Terminology

3.5.3 Neighbor discovery and recovery

3.5.4 The DUAL algorithm

Chapter 4. Quality of Service

4.1 Overview of QoS protocols

4.1.1 Service models

4.2 Steps in QoS deployment

4.2.1 Traffic audit

4.2.2 Traffic classification

4.2.3 Defining policies for the classes

4.2.4 Planning for RSVP configuration

4.3 QoS on the z/OS Communications Server

4.3.1 PAGENT policies.

4.3.2 Configuring QoS in z/OS Communication Server

4.4 Ensuring QoS across the Cisco network

4.4.1 Cisco IOS QoS support features

4.4.2 Configuring QoS in the network

4.4.3 SNA QoS

4.5 Managing Quality of Service

4.5.1 What management tools are available?

4.6 QoS summary

4.6.1 QoS reduces costs

Chapter 5. Load distribution solutions

5.1 Connection dispatching

5.1.1 What this chapter includes

5.1.2 Distribution manager/forwarding agent in the sysplex

5.1.3 Distribution manager/forwarding agent outside the sysplex

5.1.4 Distribution within sysplex, forwarding outside the sysplex

5.2 IBM Sysplex Distributor

5.2.1 Sysplex Distributor elements

5.2.2 Sysplex Distributor start tasks and takeover/takeback

5.2.3 Sysplex Distributor load-balancing rules

5.2.4 Handling connection requests

5.2.5 Data path after connection establishment

5.2.6 Takeover/takeback

5.2.7 Reaching the goals of availability and load balancing

5.3 Cisco LocalDirector

5.3.1 Overview

5.3.2 Connection and datagram flow

5.4 Cisco MultiNode Load Balancing (MNLB)

5.4.1 Overview of the MultiNode Load Balancing (MNLB) functions

5.4.2 Connection establishment and subsequent data flow

5.4.3 Client/server connection restart

5.4.4 Reaching the goals of availability and load balancing

5.5 IBM Sysplex Distributor and Cisco MNLB

5.5.1 What does this mean?

5.5.2 Overview of IBM Sysplex Distributor with Service Manager

5.5.3 Cisco Forwarding Agent, overview and functions

5.5.4 Cisco Workload Agent

5.5.5 Connection establishment process

5.5.6 Failure of application server, TCP/IP stack, system/LPAR

5.5.7 Failure of the Sysplex Distributor

5.5.8 Routing packets

5.5.9 Additional tasks of the MNLB components

Part 2 Implementation examples.

Chapter 6. Configuring CLAW, MPC+ and OSA-Express

6.1 Cisco CLAW support

6.1.1 IOCP definitions for CLAW devices

6.1.2 Router definitions

6.1.3 Host TCP/IP profile statements

6.1.4 Router show commands

6.1.5 z/OS CLAW commands

6.2 Cisco CMPC+ support

6.2.1 IOCP definitions for CMPC+ devices

6.2.2 Cisco MPC+ router definitions

6.2.3 MPC+ host definitions

6.2.4 z/OS MPC+ commands

6.2.5 Router show commands

6.3 Configuring for the OSA-Express adapter

6.3.1 IOCP for OSA-Express devices

6.3.2 Catalyst 6500 configuration

6.3.3 7507 configuration

6.3.4 7206 configuration

6.3.5 VTAM and TCP/IP definition

6.3.6 z/OS OSA-Express commands

Chapter 7. Routing with OSPF and EIGRP

7.1 Topology overview

7.1.1 Routing topology

7.2 OSPF configuration in the sysplex

7.2.1 OMPROUTE configuration

7.2.2 Verify routing from the host

7.3 ASBR configuration and redistribution

7.3.1 Redistribution

7.3.2 Verify routing from the router

7.4 Summary

Chapter 8. Implementing QoS in a z/OS and Cisco environment

8.1 Implementation steps

8.1.1 Perform traffic audit

8.1.2 Traffic classification

8.1.3 QoS policy definition

8.2 Configuration examples

8.2.1 z/OS configuration

8.2.2 Cisco network configuration

8.3 QoS test results

8.3.1 Summary

Chapter 9. Load distribution with MNLB and Sysplex Distributor

9.1 Connection distribution for a sysplex

9.2 Advantages of the solution

9.3 IP addresses used during our tests

9.4 Data flow: Service Manager and Forwarding Agent

9.4.1 Wildcard affinity and processing

9.4.2 Service Manager processes TCP connection request

9.4.3 Continuation of the TCP connection establishment process

9.4.4 Fixed affinity processing

9.4.5 Prerequisites for the CASA protocol exchange.

9.4.6 Message flow of wildcard and fixed affinities, SYN, ACK, data

9.4.7 Message flow for connection data with no fixed affinity

9.4.8 Message flow for closing a TCP connection

9.5 Service Manager implementation

9.5.1 Service Manager new TCPIP.PROFILE definitions

9.6 TCP/IP stack of the target systems

9.6.1 TCPIP.PROFILE definitions

9.6.2 Basic TCPIP.PROFILE definitions

9.7 Forwarding Agent definitions

9.7.1 CASA definitions for Cisco 7507

9.7.2 CASA definitions for Cisco router 7206VXR

9.8 Operations: control and displays

9.8.1 CASA information in the Sysplex Distributor

9.8.2 CASA information in the Forwarding Agent

9.8.3 Integrated CASA information

9.9 Sysplex Distributor backup

9.9.1 TCPIP.PROFILE definitions

9.9.2 Sysplex Distributor backup procedures

9.10 Generic Routing Encapsulation (GRE) protocol

9.10.1 The need for GRE

9.10.2 Search for a shared OSA-Express solution

9.10.3 Generic Routing Encapsulation (GRE) overview

9.10.4 Definitions in the Cisco routers 7507 and 7206

Related publications

IBM Redbooks

Other resources

Referenced Web sites

How to get IBM Redbooks

IBM Redbooks collections

Index

Back cover.

Notes:

Bibliographic Level Mode of Issuance: Monograph

OCLC:

560312034