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TN3270 Design and Implementation Guide

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About this Guide
Intended Audience
Document Structure
Cisco's Data Center Solutions
Evolution of the Data Center
Credits
Cisco Connection Online
Chapter 1 - Introduction to Telnet 3270
Why use Telnet 3270?
Background
What is a 3270 Data Stream?
What is SNA 3270?
What is TN3270?
What is TN3270E?
Cisco Product Offerings
TN3270 Server on a CIP or CPA
Chapter 2 - TN3270 Server Implementation
TN3270 Server on the CIP/CPA
Hardware and Software Requirements
Planning for Implementation
Where to Place the TN3270 Server and How Many Servers You Need
Implementing TN3270 Server on a CIP/CPA
Defining PUs
Defining LUs
Addressing LAN Printing Requirements
Addressing SNA Routing in Multi-Domain Environments
Addressing End User Service Level Requirements
Addressing Availability Requirements (Redundancy/Load Balancing)
Satisfying Expanding Network Address Requirements
TN3270 Configuration
TN3270 Server Configuration Modes
Configuring the TN3270 Server
Monitoring the TN3270 Server
Chapter 3 - TN3270 Client Implementation
How TN3270 Clients Work
Types of TN3270 Clients
TN3270 Client of OC://WebConnect Pro
Cisco WebClient
Chapter 4 - Migration Scenarios
PU and LU Definitions
XCA Major Node
LUGROUP Major Node
Scenario 1: TN3270 Server with Static LUs
Design Considerations
Router Configuration
Host Configuration
Scenario 2: TN3270 Server with Dynamic LUs
Design Considerations
Router Configuration
Host Configuration
Scenario 3: TN3270 Server Using LU Nailing
Design Considerations
Router Configuration
Host Configuration
Scenario 4: TN3270 Server Using LU Nailing with Static LUs
Router Configuration
Host Configuration
Scenario 5: TN3270 Server Using Nailing for Printer LUs
Design Considerations
Router Configuration
Host Configuration
Scenario 6: Using a Remote TN3270 Server
Design Considerations
Router Configuration
Host Configuration
Scenario 7: TN3270 Server with LocalDirector
Design Considerations
LocalDirector Configuration
Router Configuration
Host Configuration
Scenario 8: TN3270 Server Using DistributedDirector
Design Considerations
DistributedDirector Configuration
Host Configuration
Scenario 9: TN3270 Server Using a Direct PU and INCLUD0E
Design Considerations
Router Configuration
Host Configuration
Scenario 10: TN3270 Server with Session Switching
Design Considerations
Router Configuration
Host Configuration
Chapter 5 - Network Management
Overview of Network Management Products
Workstation-based Network Management Products
Mainframe-based Network Management Products
TN3270 Management Feature Matrix
Enabling Management of Cisco Routers
Managing from the Workstation
Managing from the Mainframe
Viewing TN3270 Server Configuration and Statistics
Managing from the Router
Managing from the Workstation
Managing from the Mainframe
Monitoring TN3270 Server Availability
Managing from the Workstation
Managing from the Mainframe
ISM
Diagnosing Problems
Gathering Information
Determining the Nature of the Problem
Determining Which IP Addresses, PUs, and LUs Correspond to the TN3270 Servers
Diagnosing Configuration Problems
Diagnosing Connectivity Problems
Monitoring TN3270 Response Time
Managing from the Workstation
Managing from the Mainframe
Monitoring TN3270 Server Performance
Managing from the Workstation
Managing from the Mainframe
Appendix A - Glossary
Appendix B - References
Compliant RFCs
Cisco Documentation