Lesson 6: Network Communications

System Architecture Design Strategies (select here for table of contents)
1. System Design Process	2. GIS Software Technology	3. Software Performance	4. Server Software Performance
5. GIS Data Administration	6. Network Communications	7. Platform Performance	8. Information Security
9. GIS Product Architecture	10. Performance Management	11. City of Rome	12. System Implementation

Network communications provide the required connectivity for distributed GIS operations. Network capacity, in many cases, can limit the software technology solutions that perform well within your organization. System architecture design must identify and address network communication constraints and provide the right technical solution for a successful GIS implementation.

Video1: Network Communication 38:34

GIS users' workflows generate relatively high levels of traffic across the network.

Reference documentation

1. Why is GIS traffic-intensive?
2. Types of networks
3. What is network capacity?
4. What is data?
5. GIS Client/Server Communication Protocols
6. Network Performance

   CPT network latency performance delays

7. Shared network performance

Video2: System Design Network Suitability Analysis 24:26

Reference documentation

1. Enterprise network architecture
2. Network Suitability Analysis

   CPT Calculator network suitability analysis

3. Network contribution to Web performance

Exercise 6: Use the CPT to explore network communications

Network traffic contention is the most common cause of distributed GIS performance problems. Traffic contention occurs when network traffic throughput demands exceed available network bandwidth.

Download the Arc19CapacityPlanning0201 CPT for use in the class exercises

Click here to start Exercise 6 where you will perform the following tasks:

• Use the CPT Calculator to select web mapping specifications (recipe) that best satisfies business needs.
• Use the CPT Design tab to demonstrate network bandwidth impact on user display response times.
• Use the CPT Design tab to identify reduced productivity expectations due to bandwidth congestion.
• Use the CPT Design tab to represent business requirements for a distributed system design.
• Use the CPT Design tab to identify required network bandwidth based on business requirements.

Best practice: Questions on SADSwiki content can be answered through the GeoNet Implementing GIS Architecture and Security forum.

System Architecture Design Strategies (select here for table of contents)
1. System Design Process	2. GIS Software Technology	3. Software Performance	4. Server Software Performance
5. GIS Data Administration	6. Network Communications	7. Platform Performance	8. Information Security
9. GIS Product Architecture	10. Performance Management	11. City of Rome	12. System Implementation

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System Design Strategies 26th Edition - An Esri ® Technical Reference Document • 2009 (final PDF release)